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Date: Mon, 23 Jul 2012 07:50:59 +0200
From: Daniel Mack <zonque@...il.com>
To: Sarbojit Ganguly <unixman.linuxboy@...il.com>
CC: gregkh@...uxfoundation.org, linux-usb@...r.kernel.org,
linux-kernel@...r.kernel.org, Takashi Iwai <tiwai@...e.de>
Subject: Re: Kernel Oops while disconnecting USB peripheral (always)
On 23.07.2012 05:42, Sarbojit Ganguly wrote:
> Dear all,
>
> Problem description:
>
> A 4 port USB hub which when disconnected yields an Oops.
> The USB hub connects the following peripherals:
> 1. USB keyboard
> 2. USB mouse
> 3. USB webcam + microphone built-in
>
> The details of lsusb are provided.
>
> This problem occurs when any USB device is removed (mass storage/usb
> input devices etc.)
Are you sure about this? The stack trace clearly blames the audio
driver. Can you provide one that happens without the webcam in the game?
Daniel
>
> Kernel version:
> Linux version 3.5.0 (sarbojit@...ozen) (gcc version 4.6.3
> (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #2 SMP Sun Jul 22 23:41:08 IST 2012
>
> CONFIG_DEBUG_PAGEALLOC=y has been turned on along with other kernel debug flags.
>
> Output of ver_linux script:
>
> If some fields are empty or look unusual you may have an old version.
> Compare to the current minimal requirements in Documentation/Changes.
>
> Linux Phrozen 3.5.0 #2 SMP Sun Jul 22 23:41:08 IST 2012 x86_64 x86_64
> x86_64 GNU/Linux
>
> Gnu C 4.6
> Gnu make 3.81
> binutils 2.22
> util-linux 2.20.1
> mount support
> module-init-tools 3.16
> e2fsprogs 1.42
> PPP 2.4.5
> Linux C Library 2.15
> Dynamic linker (ldd) 2.15
> Procps 3.2.8
> Net-tools 1.60
> Kbd 1.15.2
> Sh-utils 8.13
> wireless-tools 30
> Modules Loaded arc4 rt2800pci rt2800lib crc_ccitt rt2x00pci
> rt2x00lib mac80211 snd_hda_codec_realtek i915 snd_hda_intel
> snd_hda_codec snd_usb_audio snd_pcm snd_hwdep snd_usbmidi_lib
> snd_seq_midi snd_rawmidi drm_kms_helper uvcvideo drm
> snd_seq_midi_event joydev snd_seq videobuf2_core cfg80211 snd_timer
> videodev jmb38x_ms videobuf2_vmalloc videobuf2_memops psmouse
> snd_seq_device snd snd_page_alloc serio_raw soundcore bnep parport_pc
> memstick eeprom_93cx6 ppdev i2c_algo_bit hid_generic rfcomm bluetooth
> lp parport mxm_wmi acer_wmi sparse_keymap wmi mac_hid video usbhid hid
> sdhci_pci sdhci r8169
>
>
> Here is the syslog:
>
> Jul 23 07:38:22 Phrozen kernel: [ 1691.529418] usb 2-3: USB
> disconnect, device number 2
> Jul 23 07:38:22 Phrozen kernel: [ 1691.529427] usb 2-3.1: USB
> disconnect, device number 3
> Jul 23 07:38:22 Phrozen kernel: [ 1691.538766] usb 2-3.2: USB
> disconnect, device number 4
> Jul 23 07:38:22 Phrozen kernel: [ 1691.552751] BUG: unable to handle
> kernel paging request at ffff880135366ac8
> Jul 23 07:38:22 Phrozen kernel: [ 1691.552827] IP:
> [<ffffffffa02a9648>] snd_usb_audio_disconnect.isra.2+0x128/0x1b0
> [snd_usb_audio]
> Jul 23 07:38:22 Phrozen kernel: [ 1691.552912] PGD 1c0c063 PUD
> baf6e067 PMD bb118067 PTE 8000000135366160
> Jul 23 07:38:22 Phrozen kernel: [ 1691.552984] Oops: 0000 [#1] SMP
> DEBUG_PAGEALLOC
> Jul 23 07:38:22 Phrozen kernel: [ 1691.553038] CPU 1
> Jul 23 07:38:22 Phrozen kernel: [ 1691.553057] Modules linked in: arc4
> rt2800pci rt2800lib crc_ccitt rt2x00pci rt2x00lib mac80211 i915
> snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_usb_audio joydev
> snd_pcm snd_hwdep snd_usbmidi_lib snd_seq_midi snd_rawmidi uvcvideo
> snd_seq_midi_event drm_kms_helper drm cfg80211 videobuf2_core videodev
> snd_seq snd_timer snd_seq_device snd videobuf2_vmalloc psmouse
> snd_page_alloc jmb38x_ms soundcore memstick videobuf2_memops serio_raw
> i2c_algo_bit hid_generic eeprom_93cx6 parport_pc bnep ppdev rfcomm
> bluetooth lp parport acer_wmi mxm_wmi sparse_keymap mac_hid video wmi
> usbhid hid sdhci_pci sdhci r8169
> Jul 23 07:38:22 Phrozen kernel: [ 1691.553773]
> Jul 23 07:38:22 Phrozen kernel: [ 1691.553780] Pid: 21, comm: khubd
> Not tainted 3.5.0 #2 Acer Aspire 4730Z /Aspire 4730Z
> Jul 23 07:38:22 Phrozen kernel: [ 1691.553862] RIP:
> 0010:[<ffffffffa02a9648>] [<ffffffffa02a9648>]
> snd_usb_audio_disconnect.isra.2+0x128/0x1b0 [snd_usb_audio]
> Jul 23 07:38:22 Phrozen kernel: [ 1691.553966] RSP:
> 0018:ffff880139547b50 EFLAGS: 00010282
> Jul 23 07:38:22 Phrozen kernel: [ 1691.554012] RAX: 0000000000000001
> RBX: ffff880135277800 RCX: 0000000000016f88
> Jul 23 07:38:22 Phrozen kernel: [ 1691.554068] RDX: 000000000000e62b
> RSI: 0000000000000000 RDI: 0000000000000202
> Jul 23 07:38:22 Phrozen kernel: [ 1691.554125] RBP: ffff880139547b80
> R08: 0000000000000364 R09: ffff88013fbfafd0
> Jul 23 07:38:22 Phrozen kernel: [ 1691.554180] R10: 000000000000007b
> R11: 0000000000000001 R12: ffff880135277870
> Jul 23 07:38:22 Phrozen kernel: [ 1691.554238] R13: ffff88013450ac00
> R14: ffff880135366ac8 R15: ffff8801352778d8
> Jul 23 07:38:22 Phrozen kernel: [ 1691.554294] FS:
> 0000000000000000(0000) GS:ffff88013fc80000(0000)
> knlGS:0000000000000000
> Jul 23 07:38:22 Phrozen kernel: [ 1691.554362] CS: 0010 DS: 0000 ES:
> 0000 CR0: 000000008005003b
> Jul 23 07:38:22 Phrozen kernel: [ 1691.554407] CR2: ffff880135366ac8
> CR3: 00000001366a6000 CR4: 00000000000407e0
> Jul 23 07:38:22 Phrozen kernel: [ 1691.554464] DR0: 0000000000000000
> DR1: 0000000000000000 DR2: 0000000000000000
> Jul 23 07:38:22 Phrozen kernel: [ 1691.554519] DR3: 0000000000000000
> DR6: 00000000ffff0ff0 DR7: 0000000000000400
> Jul 23 07:38:22 Phrozen kernel: [ 1691.554577] Process khubd (pid: 21,
> threadinfo ffff880139546000, task ffff880139badcc0)
> Jul 23 07:38:22 Phrozen kernel: [ 1691.554637] Stack:
> Jul 23 07:38:22 Phrozen kernel: [ 1691.554657] ffff88013271a000
> ffff880132478c30 ffff880132478c00 ffff88013271a000
> Jul 23 07:38:22 Phrozen kernel: [ 1691.554736] ffffffffa02bd718
> 00000000ffffffea ffff880139547b90 ffffffffa02a96ea
> Jul 23 07:38:22 Phrozen kernel: [ 1691.554814] ffff880139547be0
> ffffffff814b069d ffff880139547be0 0000000081414108
> Jul 23 07:38:22 Phrozen kernel: [ 1691.554889] Call Trace:
> Jul 23 07:38:22 Phrozen kernel: [ 1691.554926] [<ffffffffa02a96ea>]
> usb_audio_disconnect+0x1a/0x20 [snd_usb_audio]
> Jul 23 07:38:22 Phrozen kernel: [ 1691.554994] [<ffffffff814b069d>]
> usb_unbind_interface+0x5d/0x1b0
> Jul 23 07:38:22 Phrozen kernel: [ 1691.555050] [<ffffffff814097cc>]
> __device_release_driver+0x7c/0xe0
> Jul 23 07:38:22 Phrozen kernel: [ 1691.555102] [<ffffffff8140985c>]
> device_release_driver+0x2c/0x40
> Jul 23 07:38:22 Phrozen kernel: [ 1691.555155] [<ffffffff81409264>]
> bus_remove_device+0xe4/0x120
> Jul 23 07:38:22 Phrozen kernel: [ 1691.555206] [<ffffffff81406a03>]
> device_del+0x123/0x1b0
> Jul 23 07:38:22 Phrozen kernel: [ 1691.555256] [<ffffffff814ae1af>]
> usb_disable_device+0xaf/0x1f0
> Jul 23 07:38:22 Phrozen kernel: [ 1691.555306] [<ffffffff814a6d20>]
> usb_disconnect+0x90/0x120
> Jul 23 07:38:22 Phrozen kernel: [ 1691.555353] [<ffffffff814a6d09>]
> usb_disconnect+0x79/0x120
> Jul 23 07:38:22 Phrozen kernel: [ 1691.555399] [<ffffffff814a7d88>]
> hub_port_connect_change+0xa8/0x6c0
> Jul 23 07:38:22 Phrozen kernel: [ 1691.555453] [<ffffffff814a8733>]
> hub_events+0x393/0x5b0
> Jul 23 07:38:22 Phrozen kernel: [ 1691.555500] [<ffffffff814a8985>]
> hub_thread+0x35/0x1a0
> Jul 23 07:38:22 Phrozen kernel: [ 1691.555545] [<ffffffff81076d70>] ?
> __init_waitqueue_head+0x40/0x40
> Jul 23 07:38:22 Phrozen kernel: [ 1691.555598] [<ffffffff814a8950>] ?
> hub_events+0x5b0/0x5b0
> Jul 23 07:38:22 Phrozen kernel: [ 1691.555646] [<ffffffff810762d3>]
> kthread+0x93/0xa0
> Jul 23 07:38:22 Phrozen kernel: [ 1691.555692] [<ffffffff8166f864>]
> kernel_thread_helper+0x4/0x10
> Jul 23 07:38:22 Phrozen kernel: [ 1691.555744] [<ffffffff81076240>] ?
> __init_kthread_worker+0x40/0x40
> Jul 23 07:38:22 Phrozen kernel: [ 1691.555795] [<ffffffff8166f860>] ?
> gs_change+0x13/0x13
> Jul 23 07:38:22 Phrozen kernel: [ 1691.555839] Code: 00 48 39 c2 75 ad
> 4c 8b b3 d8 00 00 00 4c 8d bb d8 00 00 00 4d 39 fe 74 1a 66 2e 0f 1f
> 84 00 00 00 00 00 4c 89 f7 e8 18 24 00 00 <4d> 8b 36 4d 39 fe 75 f0 4c
> 8b b3 f0 00 00 00 4c 8d bb f0 00 00
> Jul 23 07:38:22 Phrozen kernel: [ 1691.556149] RIP
> [<ffffffffa02a9648>] snd_usb_audio_disconnect.isra.2+0x128/0x1b0
> [snd_usb_audio]
> Jul 23 07:38:22 Phrozen kernel: [ 1691.556149] RSP <ffff880139547b50>
> Jul 23 07:38:22 Phrozen kernel: [ 1691.556149] CR2: ffff880135366ac8
> Jul 23 07:38:22 Phrozen kernel: [ 1691.585993] ---[ end trace
> 5c54ad131247c0a7 ]---
> Jul 23 07:39:47 Phrozen kernel: imklog 5.8.6, log source = /proc/kmsg started.
> Jul 23 07:39:47 Phrozen rsyslogd: [origin software="rsyslogd"
> swVersion="5.8.6" x-pid="563" x-info="http://www.rsyslog.com"] start
> Jul 23 07:39:47 Phrozen rsyslogd: rsyslogd's groupid changed to 103
> Jul 23 07:39:47 Phrozen rsyslogd: rsyslogd's userid changed to 101
> Jul 23 07:39:47 Phrozen rsyslogd-2039: Could not open output pipe
> '/dev/xconsole' [try http://www.rsyslog.com/e/2039 ]
> Jul 23 07:39:47 Phrozen bluetoothd[556]: Failed to init alert plugin
> Jul 23 07:39:47 Phrozen bluetoothd[556]: Failed to init time plugin
> Jul 23 07:39:47 Phrozen bluetoothd[556]: Failed to init proximity plugin
> Jul 23 07:39:47 Phrozen bluetoothd[556]: Failed to init gatt_example plugin
>
>
> One more:
>
> Jul 23 08:45:43 Phrozen kernel: [ 3878.550604] VFS: Busy inodes after
> unmount of sdb1. Self-destruct in 5 seconds. Have a nice day...
> Jul 23 08:45:43 Phrozen kernel: [ 3878.551053] BUG: unable to handle
> kernel NULL pointer dereference at 00000000000001e8
> Jul 23 08:45:43 Phrozen kernel: [ 3878.551178] IP:
> [<ffffffff811fdb16>] ext3_evict_inode+0x46/0x2c0
> Jul 23 08:45:43 Phrozen kernel: [ 3878.551275] PGD bb57e067 PUD bb4a2067 PMD 0
> Jul 23 08:45:43 Phrozen kernel: [ 3878.551346] Oops: 0000 [#1] SMP
> DEBUG_PAGEALLOC
> Jul 23 08:45:43 Phrozen kernel: [ 3878.551438] CPU 1
> Jul 23 08:45:43 Phrozen kernel: [ 3878.551470] Modules linked in: uas
> usb_storage snd_usb_audio snd_usbmidi_lib hid_generic usbhid hid arc4
> rt2800pci rt2800lib crc_ccitt rt2x00pci rt2x00lib mac80211
> snd_hda_codec_realtek i915 snd_hda_intel snd_hda_codec snd_hwdep
> snd_pcm snd_seq_midi snd_rawmidi snd_seq_midi_event drm_kms_helper
> joydev snd_seq cfg80211 snd_timer snd_seq_device snd drm uvcvideo
> jmb38x_ms videobuf2_core soundcore snd_page_alloc memstick videodev
> psmouse eeprom_93cx6 videobuf2_vmalloc i2c_algo_bit videobuf2_memops
> serio_raw rfcomm parport_pc bnep ppdev bluetooth lp parport mxm_wmi
> acer_wmi sparse_keymap video mac_hid wmi sdhci_pci sdhci r8169
> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029]
> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] Pid: 13148, comm:
> gvfsd-trash Not tainted 3.5.0 #2 Acer Aspire 4730Z /Aspire
> 4730Z
> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] RIP:
> 0010:[<ffffffff811fdb16>] [<ffffffff811fdb16>]
> ext3_evict_inode+0x46/0x2c0
> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] RSP:
> 0000:ffff8800bb517e48 EFLAGS: 00010287
> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] RAX: 0000000000004000
> RBX: ffff880132d288b0 RCX: ffff88013ff83000
> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] RDX: 0000000000000000
> RSI: 3e772dc354865807 RDI: ffff880132d288b0
> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] RBP: ffff8800bb517e68
> R08: e000000000000000 R09: c038000000000000
> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] R10: feaf2dc354865807
> R11: 7fffffffffffffff R12: 0000000000000000
> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] R13: 0000000000000005
> R14: ffff8801324189a0 R15: ffff8801347336a0
> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] FS:
> 00007f0d9e5247c0(0000) GS:ffff88013fc80000(0000)
> knlGS:0000000000000000
> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] CS: 0010 DS: 0000 ES:
> 0000 CR0: 0000000080050033
> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] CR2: 00000000000001e8
> CR3: 00000000bb426000 CR4: 00000000000407e0
> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] DR0: 0000000000000000
> DR1: 0000000000000000 DR2: 0000000000000000
> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] DR3: 0000000000000000
> DR6: 00000000ffff0ff0 DR7: 0000000000000400
> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] Process gvfsd-trash
> (pid: 13148, threadinfo ffff8800bb516000, task ffff88013189dcc0)
> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] Stack:
> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] ffff880132d288b0
> ffff880132d289e8 ffffffff81824ca0 ffff8801324189a0
> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] ffff8800bb517e98
> ffffffff8119a268 ffff880132d288b0 ffff880132d288b0
> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] ffff880132d28938
> ffffffff81824ca0 ffff8800bb517ec8 ffffffff8119a452
> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] Call Trace:
> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] [<ffffffff8119a268>]
> evict+0xb8/0x1c0
> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] [<ffffffff8119a452>]
> iput_final+0xe2/0x1f0
> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] [<ffffffff8119a59e>]
> iput+0x3e/0x50
> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] [<ffffffff811c0630>]
> fsnotify_destroy_mark+0x170/0x180
> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] [<ffffffff811c2738>]
> sys_inotify_rm_watch+0x78/0xd0
> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] [<ffffffff8166e569>]
> system_call_fastpath+0x16/0x1b
> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] Code: 48 45 31 e4 45 85
> ed 0f 84 66 01 00 00 0f b7 03 48 8b 53 28 48 8b 92 70 03 00 00 25 00
> f0 00 00 3d 00 80 00 00 0f 84 ea 01 00 00 <4c> 8b b2 e8 01 00 00 4c 8d
> ab 80 01 00 00 4d 85 f6 74 17 3d 00
> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] RIP
> [<ffffffff811fdb16>] ext3_evict_inode+0x46/0x2c0
> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] RSP <ffff8800bb517e48>
> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] CR2: 00000000000001e8
> Jul 23 08:45:43 Phrozen kernel: [ 3878.590676] ---[ end trace
> 3128f11f8290fec4 ]---
> Jul 23 08:47:11 Phrozen kernel: imklog 5.8.6, log source = /proc/kmsg started.
> Jul 23 08:47:11 Phrozen rsyslogd: [origin software="rsyslogd"
> swVersion="5.8.6" x-pid="592" x-info="http://www.rsyslog.com"] start
> Jul 23 08:47:11 Phrozen rsyslogd: rsyslogd's groupid changed to 103
> Jul 23 08:47:11 Phrozen rsyslogd: rsyslogd's userid changed to 101
> Jul 23 08:47:11 Phrozen rsyslogd-2039: Could not open output pipe
> '/dev/xconsole' [try http://www.rsyslog.com/e/2039 ]
>
>
> CPU-Info
> processor : 0
> vendor_id : GenuineIntel
> cpu family : 6
> model : 23
> model name : Pentium(R) Dual-Core CPU T4200 @ 2.00GHz
> stepping : 10
> microcode : 0xa07
> cpu MHz : 2000.000
> cache size : 1024 KB
> physical id : 0
> siblings : 2
> core id : 0
> cpu cores : 2
> apicid : 0
> initial apicid : 0
> fpu : yes
> fpu_exception : yes
> cpuid level : 13
> wp : yes
> flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
> pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx
> lm constant_tsc arch_perfmon pebs bts rep_good nopl aperfmperf pni
> dtes64 monitor ds_cpl est tm2 ssse3 cx16 xtpr pdcm xsave lahf_lm
> dtherm
> bogomips : 3989.98
> clflush size : 64
> cache_alignment : 64
> address sizes : 36 bits physical, 48 bits virtual
> power management:
>
> processor : 1
> vendor_id : GenuineIntel
> cpu family : 6
> model : 23
> model name : Pentium(R) Dual-Core CPU T4200 @ 2.00GHz
> stepping : 10
> microcode : 0xa07
> cpu MHz : 2000.000
> cache size : 1024 KB
> physical id : 0
> siblings : 2
> core id : 1
> cpu cores : 2
> apicid : 1
> initial apicid : 1
> fpu : yes
> fpu_exception : yes
> cpuid level : 13
> wp : yes
> flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
> pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx
> lm constant_tsc arch_perfmon pebs bts rep_good nopl aperfmperf pni
> dtes64 monitor ds_cpl est tm2 ssse3 cx16 xtpr pdcm xsave lahf_lm
> dtherm
> bogomips : 3989.98
> clflush size : 64
> cache_alignment : 64
> address sizes : 36 bits physical, 48 bits virtual
> power management:
>
>
> lsusb -vvv output
>
>
> Bus 001 Device 002: ID 064e:a103 Suyin Corp. Acer/HP Integrated Webcam [CN0314]
> Device Descriptor:
> bLength 18
> bDescriptorType 1
> bcdUSB 2.00
> bDeviceClass 239 Miscellaneous Device
> bDeviceSubClass 2 ?
> bDeviceProtocol 1 Interface Association
> bMaxPacketSize0 64
> idVendor 0x064e Suyin Corp.
> idProduct 0xa103 Acer/HP Integrated Webcam [CN0314]
> bcdDevice 1.00
> iManufacturer 2 SuYin
> iProduct 1 Acer Crystal Eye webcam
> iSerial 3 CN0314-SN30-OV03-VA-R02.03.02
> bNumConfigurations 1
> Configuration Descriptor:
> bLength 9
> bDescriptorType 2
> wTotalLength 544
> bNumInterfaces 2
> bConfigurationValue 1
> iConfiguration 0
> bmAttributes 0x80
> (Bus Powered)
> MaxPower 500mA
> Interface Association:
> bLength 8
> bDescriptorType 11
> bFirstInterface 0
> bInterfaceCount 2
> bFunctionClass 14 Video
> bFunctionSubClass 3 Video Interface Collection
> bFunctionProtocol 0
> iFunction 5 Acer Crystal Eye webcam
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 0
> bAlternateSetting 0
> bNumEndpoints 1
> bInterfaceClass 14 Video
> bInterfaceSubClass 1 Video Control
> bInterfaceProtocol 0
> iInterface 5 Acer Crystal Eye webcam
> VideoControl Interface Descriptor:
> bLength 13
> bDescriptorType 36
> bDescriptorSubtype 1 (HEADER)
> bcdUVC 1.00
> wTotalLength 104
> dwClockFrequency 15.000000MHz
> bInCollection 1
> baInterfaceNr( 0) 1
> VideoControl Interface Descriptor:
> bLength 9
> bDescriptorType 36
> bDescriptorSubtype 3 (OUTPUT_TERMINAL)
> bTerminalID 2
> wTerminalType 0x0101 USB Streaming
> bAssocTerminal 0
> bSourceID 5
> iTerminal 0
> VideoControl Interface Descriptor:
> bLength 26
> bDescriptorType 36
> bDescriptorSubtype 6 (EXTENSION_UNIT)
> bUnitID 4
> guidExtensionCode {7033f028-1163-2e4a-ba2c-6890eb334016}
> bNumControl 8
> bNrPins 1
> baSourceID( 0) 3
> bControlSize 1
> bmControls( 0) 0x0f
> iExtension 0
> VideoControl Interface Descriptor:
> bLength 26
> bDescriptorType 36
> bDescriptorSubtype 6 (EXTENSION_UNIT)
> bUnitID 5
> guidExtensionCode {3fae1228-d7bc-114e-a357-6f1edef7d61d}
> bNumControl 8
> bNrPins 1
> baSourceID( 0) 4
> bControlSize 1
> bmControls( 0) 0xff
> iExtension 0
> VideoControl Interface Descriptor:
> bLength 18
> bDescriptorType 36
> bDescriptorSubtype 2 (INPUT_TERMINAL)
> bTerminalID 1
> wTerminalType 0x0201 Camera Sensor
> bAssocTerminal 0
> iTerminal 0
> wObjectiveFocalLengthMin 0
> wObjectiveFocalLengthMax 0
> wOcularFocalLength 0
> bControlSize 3
> bmControls 0x00000000
> VideoControl Interface Descriptor:
> bLength 12
> bDescriptorType 36
> bDescriptorSubtype 5 (PROCESSING_UNIT)
> Warning: Descriptor too short
> bUnitID 3
> bSourceID 1
> wMaxMultiplier 0
> bControlSize 3
> bmControls 0x000025bf
> Brightness
> Contrast
> Hue
> Saturation
> Sharpness
> Gamma
> White Balance Component
> Backlight Compensation
> Power Line Frequency
> White Balance Component, Auto
> iProcessing 0
> bmVideoStandards 0x31
> None
> NTSC - 625/50
> PAL - 525/60
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x83 EP 3 IN
> bmAttributes 3
> Transfer Type Interrupt
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0010 1x 16 bytes
> bInterval 6
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 1
> bAlternateSetting 0
> bNumEndpoints 0
> bInterfaceClass 14 Video
> bInterfaceSubClass 2 Video Streaming
> bInterfaceProtocol 0
> iInterface 0
> VideoStreaming Interface Descriptor:
> bLength 14
> bDescriptorType 36
> bDescriptorSubtype 1 (INPUT_HEADER)
> bNumFormats 1
> wTotalLength 297
> bEndPointAddress 129
> bmInfo 0
> bTerminalLink 2
> bStillCaptureMethod 0
> bTriggerSupport 1
> bTriggerUsage 1
> bControlSize 1
> bmaControls( 0) 27
> VideoStreaming Interface Descriptor:
> bLength 27
> bDescriptorType 36
> bDescriptorSubtype 4 (FORMAT_UNCOMPRESSED)
> bFormatIndex 1
> bNumFrameDescriptors 5
> guidFormat
> {59555932-0000-1000-8000-00aa00389b71}
> bBitsPerPixel 16
> bDefaultFrameIndex 1
> bAspectRatioX 0
> bAspectRatioY 0
> bmInterlaceFlags 0x00
> Interlaced stream or variable: No
> Fields per frame: 2 fields
> Field 1 first: No
> Field pattern: Field 1 only
> bCopyProtect 0
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
> bFrameIndex 1
> bmCapabilities 0x00
> Still image unsupported
> wWidth 640
> wHeight 480
> dwMinBitRate 3072000
> dwMaxBitRate 18432000
> dwMaxVideoFrameBufferSize 614400
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
> bFrameIndex 2
> bmCapabilities 0x00
> Still image unsupported
> wWidth 352
> wHeight 288
> dwMinBitRate 1013760
> dwMaxBitRate 6082560
> dwMaxVideoFrameBufferSize 202752
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
> bFrameIndex 3
> bmCapabilities 0x00
> Still image unsupported
> wWidth 320
> wHeight 240
> dwMinBitRate 768000
> dwMaxBitRate 4608000
> dwMaxVideoFrameBufferSize 153600
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
> bFrameIndex 4
> bmCapabilities 0x00
> Still image unsupported
> wWidth 176
> wHeight 144
> dwMinBitRate 253440
> dwMaxBitRate 1520640
> dwMaxVideoFrameBufferSize 50688
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
> bFrameIndex 5
> bmCapabilities 0x00
> Still image unsupported
> wWidth 160
> wHeight 120
> dwMinBitRate 192000
> dwMaxBitRate 1152000
> dwMaxVideoFrameBufferSize 38400
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 6
> bDescriptorType 36
> bDescriptorSubtype 13 (COLORFORMAT)
> bColorPrimaries 1 (BT.709,sRGB)
> bTransferCharacteristics 1 (BT.709)
> bMatrixCoefficients 4 (SMPTE 170M (BT.601))
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 1
> bAlternateSetting 1
> bNumEndpoints 1
> bInterfaceClass 14 Video
> bInterfaceSubClass 2 Video Streaming
> bInterfaceProtocol 0
> iInterface 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x81 EP 1 IN
> bmAttributes 5
> Transfer Type Isochronous
> Synch Type Asynchronous
> Usage Type Data
> wMaxPacketSize 0x0080 1x 128 bytes
> bInterval 1
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 1
> bAlternateSetting 2
> bNumEndpoints 1
> bInterfaceClass 14 Video
> bInterfaceSubClass 2 Video Streaming
> bInterfaceProtocol 0
> iInterface 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x81 EP 1 IN
> bmAttributes 5
> Transfer Type Isochronous
> Synch Type Asynchronous
> Usage Type Data
> wMaxPacketSize 0x0100 1x 256 bytes
> bInterval 1
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 1
> bAlternateSetting 3
> bNumEndpoints 1
> bInterfaceClass 14 Video
> bInterfaceSubClass 2 Video Streaming
> bInterfaceProtocol 0
> iInterface 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x81 EP 1 IN
> bmAttributes 5
> Transfer Type Isochronous
> Synch Type Asynchronous
> Usage Type Data
> wMaxPacketSize 0x0320 1x 800 bytes
> bInterval 1
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 1
> bAlternateSetting 4
> bNumEndpoints 1
> bInterfaceClass 14 Video
> bInterfaceSubClass 2 Video Streaming
> bInterfaceProtocol 0
> iInterface 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x81 EP 1 IN
> bmAttributes 5
> Transfer Type Isochronous
> Synch Type Asynchronous
> Usage Type Data
> wMaxPacketSize 0x0b20 2x 800 bytes
> bInterval 1
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 1
> bAlternateSetting 5
> bNumEndpoints 1
> bInterfaceClass 14 Video
> bInterfaceSubClass 2 Video Streaming
> bInterfaceProtocol 0
> iInterface 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x81 EP 1 IN
> bmAttributes 5
> Transfer Type Isochronous
> Synch Type Asynchronous
> Usage Type Data
> wMaxPacketSize 0x1320 3x 800 bytes
> bInterval 1
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 1
> bAlternateSetting 6
> bNumEndpoints 1
> bInterfaceClass 14 Video
> bInterfaceSubClass 2 Video Streaming
> bInterfaceProtocol 0
> iInterface 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x81 EP 1 IN
> bmAttributes 5
> Transfer Type Isochronous
> Synch Type Asynchronous
> Usage Type Data
> wMaxPacketSize 0x1400 3x 1024 bytes
> bInterval 1
> Device Qualifier (for other device speed):
> bLength 10
> bDescriptorType 6
> bcdUSB 2.00
> bDeviceClass 239 Miscellaneous Device
> bDeviceSubClass 2 ?
> bDeviceProtocol 1 Interface Association
> bMaxPacketSize0 64
> bNumConfigurations 1
> Device Status: 0x0002
> (Bus Powered)
> Remote Wakeup Enabled
>
> Bus 002 Device 002: ID 05e3:0608 Genesys Logic, Inc. USB-2.0 4-Port HUB
> Device Descriptor:
> bLength 18
> bDescriptorType 1
> bcdUSB 2.00
> bDeviceClass 9 Hub
> bDeviceSubClass 0 Unused
> bDeviceProtocol 1 Single TT
> bMaxPacketSize0 64
> idVendor 0x05e3 Genesys Logic, Inc.
> idProduct 0x0608 USB-2.0 4-Port HUB
> bcdDevice 77.64
> iManufacturer 0
> iProduct 1 USB2.0 Hub
> iSerial 0
> bNumConfigurations 1
> Configuration Descriptor:
> bLength 9
> bDescriptorType 2
> wTotalLength 25
> bNumInterfaces 1
> bConfigurationValue 1
> iConfiguration 0
> bmAttributes 0xe0
> Self Powered
> Remote Wakeup
> MaxPower 100mA
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 0
> bAlternateSetting 0
> bNumEndpoints 1
> bInterfaceClass 9 Hub
> bInterfaceSubClass 0 Unused
> bInterfaceProtocol 0 Full speed (or root) hub
> iInterface 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x81 EP 1 IN
> bmAttributes 3
> Transfer Type Interrupt
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0001 1x 1 bytes
> bInterval 12
> Hub Descriptor:
> bLength 9
> bDescriptorType 41
> nNbrPorts 4
> wHubCharacteristic 0x00e0
> Ganged power switching
> Ganged overcurrent protection
> TT think time 32 FS bits
> Port indicators
> bPwrOn2PwrGood 50 * 2 milli seconds
> bHubContrCurrent 100 milli Ampere
> DeviceRemovable 0x00
> PortPwrCtrlMask 0xff
> Hub Port Status:
> Port 1: 0000.0303 lowspeed power enable connect
> Port 2: 0000.0507 highspeed power suspend enable connect
> Port 3: 0000.0100 power
> Port 4: 0000.0103 power enable connect
> Device Qualifier (for other device speed):
> bLength 10
> bDescriptorType 6
> bcdUSB 2.00
> bDeviceClass 9 Hub
> bDeviceSubClass 0 Unused
> bDeviceProtocol 0 Full speed (or root) hub
> bMaxPacketSize0 64
> bNumConfigurations 1
> Device Status: 0x0001
> Self Powered
>
> Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
> Device Descriptor:
> bLength 18
> bDescriptorType 1
> bcdUSB 2.00
> bDeviceClass 9 Hub
> bDeviceSubClass 0 Unused
> bDeviceProtocol 0 Full speed (or root) hub
> bMaxPacketSize0 64
> idVendor 0x1d6b Linux Foundation
> idProduct 0x0002 2.0 root hub
> bcdDevice 3.05
> iManufacturer 3 Linux 3.5.0 ehci_hcd
> iProduct 2 EHCI Host Controller
> iSerial 1 0000:00:1a.7
> bNumConfigurations 1
> Configuration Descriptor:
> bLength 9
> bDescriptorType 2
> wTotalLength 25
> bNumInterfaces 1
> bConfigurationValue 1
> iConfiguration 0
> bmAttributes 0xe0
> Self Powered
> Remote Wakeup
> MaxPower 0mA
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 0
> bAlternateSetting 0
> bNumEndpoints 1
> bInterfaceClass 9 Hub
> bInterfaceSubClass 0 Unused
> bInterfaceProtocol 0 Full speed (or root) hub
> iInterface 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x81 EP 1 IN
> bmAttributes 3
> Transfer Type Interrupt
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0004 1x 4 bytes
> bInterval 12
> Hub Descriptor:
> bLength 9
> bDescriptorType 41
> nNbrPorts 4
> wHubCharacteristic 0x000a
> No power switching (usb 1.0)
> Per-port overcurrent protection
> bPwrOn2PwrGood 10 * 2 milli seconds
> bHubContrCurrent 0 milli Ampere
> DeviceRemovable 0x00
> PortPwrCtrlMask 0xff
> Hub Port Status:
> Port 1: 0000.0503 highspeed power enable connect
> Port 2: 0000.0100 power
> Port 3: 0000.0100 power
> Port 4: 0000.0100 power
> Device Status: 0x0001
> Self Powered
>
> Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
> Device Descriptor:
> bLength 18
> bDescriptorType 1
> bcdUSB 2.00
> bDeviceClass 9 Hub
> bDeviceSubClass 0 Unused
> bDeviceProtocol 0 Full speed (or root) hub
> bMaxPacketSize0 64
> idVendor 0x1d6b Linux Foundation
> idProduct 0x0002 2.0 root hub
> bcdDevice 3.05
> iManufacturer 3 Linux 3.5.0 ehci_hcd
> iProduct 2 EHCI Host Controller
> iSerial 1 0000:00:1d.7
> bNumConfigurations 1
> Configuration Descriptor:
> bLength 9
> bDescriptorType 2
> wTotalLength 25
> bNumInterfaces 1
> bConfigurationValue 1
> iConfiguration 0
> bmAttributes 0xe0
> Self Powered
> Remote Wakeup
> MaxPower 0mA
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 0
> bAlternateSetting 0
> bNumEndpoints 1
> bInterfaceClass 9 Hub
> bInterfaceSubClass 0 Unused
> bInterfaceProtocol 0 Full speed (or root) hub
> iInterface 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x81 EP 1 IN
> bmAttributes 3
> Transfer Type Interrupt
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0004 1x 4 bytes
> bInterval 12
> Hub Descriptor:
> bLength 11
> bDescriptorType 41
> nNbrPorts 8
> wHubCharacteristic 0x000a
> No power switching (usb 1.0)
> Per-port overcurrent protection
> bPwrOn2PwrGood 10 * 2 milli seconds
> bHubContrCurrent 0 milli Ampere
> DeviceRemovable 0x00 0x00
> PortPwrCtrlMask 0xff 0xff
> Hub Port Status:
> Port 1: 0000.0100 power
> Port 2: 0000.0100 power
> Port 3: 0000.0503 highspeed power enable connect
> Port 4: 0000.0100 power
> Port 5: 0000.0100 power
> Port 6: 0000.0100 power
> Port 7: 0000.0100 power
> Port 8: 0000.0100 power
> Device Status: 0x0001
> Self Powered
>
> Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
> Device Descriptor:
> bLength 18
> bDescriptorType 1
> bcdUSB 1.10
> bDeviceClass 9 Hub
> bDeviceSubClass 0 Unused
> bDeviceProtocol 0 Full speed (or root) hub
> bMaxPacketSize0 64
> idVendor 0x1d6b Linux Foundation
> idProduct 0x0001 1.1 root hub
> bcdDevice 3.05
> iManufacturer 3 Linux 3.5.0 uhci_hcd
> iProduct 2 UHCI Host Controller
> iSerial 1 0000:00:1a.0
> bNumConfigurations 1
> Configuration Descriptor:
> bLength 9
> bDescriptorType 2
> wTotalLength 25
> bNumInterfaces 1
> bConfigurationValue 1
> iConfiguration 0
> bmAttributes 0xe0
> Self Powered
> Remote Wakeup
> MaxPower 0mA
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 0
> bAlternateSetting 0
> bNumEndpoints 1
> bInterfaceClass 9 Hub
> bInterfaceSubClass 0 Unused
> bInterfaceProtocol 0 Full speed (or root) hub
> iInterface 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x81 EP 1 IN
> bmAttributes 3
> Transfer Type Interrupt
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0002 1x 2 bytes
> bInterval 255
> Hub Descriptor:
> bLength 9
> bDescriptorType 41
> nNbrPorts 2
> wHubCharacteristic 0x000a
> No power switching (usb 1.0)
> Per-port overcurrent protection
> bPwrOn2PwrGood 1 * 2 milli seconds
> bHubContrCurrent 0 milli Ampere
> DeviceRemovable 0x00
> PortPwrCtrlMask 0xff
> Hub Port Status:
> Port 1: 0000.0100 power
> Port 2: 0000.0100 power
> Device Status: 0x0001
> Self Powered
>
> Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
> Device Descriptor:
> bLength 18
> bDescriptorType 1
> bcdUSB 1.10
> bDeviceClass 9 Hub
> bDeviceSubClass 0 Unused
> bDeviceProtocol 0 Full speed (or root) hub
> bMaxPacketSize0 64
> idVendor 0x1d6b Linux Foundation
> idProduct 0x0001 1.1 root hub
> bcdDevice 3.05
> iManufacturer 3 Linux 3.5.0 uhci_hcd
> iProduct 2 UHCI Host Controller
> iSerial 1 0000:00:1a.1
> bNumConfigurations 1
> Configuration Descriptor:
> bLength 9
> bDescriptorType 2
> wTotalLength 25
> bNumInterfaces 1
> bConfigurationValue 1
> iConfiguration 0
> bmAttributes 0xe0
> Self Powered
> Remote Wakeup
> MaxPower 0mA
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 0
> bAlternateSetting 0
> bNumEndpoints 1
> bInterfaceClass 9 Hub
> bInterfaceSubClass 0 Unused
> bInterfaceProtocol 0 Full speed (or root) hub
> iInterface 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x81 EP 1 IN
> bmAttributes 3
> Transfer Type Interrupt
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0002 1x 2 bytes
> bInterval 255
> Hub Descriptor:
> bLength 9
> bDescriptorType 41
> nNbrPorts 2
> wHubCharacteristic 0x000a
> No power switching (usb 1.0)
> Per-port overcurrent protection
> bPwrOn2PwrGood 1 * 2 milli seconds
> bHubContrCurrent 0 milli Ampere
> DeviceRemovable 0x00
> PortPwrCtrlMask 0xff
> Hub Port Status:
> Port 1: 0000.0100 power
> Port 2: 0000.0100 power
> Device Status: 0x0001
> Self Powered
>
> Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
> Device Descriptor:
> bLength 18
> bDescriptorType 1
> bcdUSB 1.10
> bDeviceClass 9 Hub
> bDeviceSubClass 0 Unused
> bDeviceProtocol 0 Full speed (or root) hub
> bMaxPacketSize0 64
> idVendor 0x1d6b Linux Foundation
> idProduct 0x0001 1.1 root hub
> bcdDevice 3.05
> iManufacturer 3 Linux 3.5.0 uhci_hcd
> iProduct 2 UHCI Host Controller
> iSerial 1 0000:00:1d.0
> bNumConfigurations 1
> Configuration Descriptor:
> bLength 9
> bDescriptorType 2
> wTotalLength 25
> bNumInterfaces 1
> bConfigurationValue 1
> iConfiguration 0
> bmAttributes 0xe0
> Self Powered
> Remote Wakeup
> MaxPower 0mA
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 0
> bAlternateSetting 0
> bNumEndpoints 1
> bInterfaceClass 9 Hub
> bInterfaceSubClass 0 Unused
> bInterfaceProtocol 0 Full speed (or root) hub
> iInterface 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x81 EP 1 IN
> bmAttributes 3
> Transfer Type Interrupt
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0002 1x 2 bytes
> bInterval 255
> Hub Descriptor:
> bLength 9
> bDescriptorType 41
> nNbrPorts 2
> wHubCharacteristic 0x000a
> No power switching (usb 1.0)
> Per-port overcurrent protection
> bPwrOn2PwrGood 1 * 2 milli seconds
> bHubContrCurrent 0 milli Ampere
> DeviceRemovable 0x00
> PortPwrCtrlMask 0xff
> Hub Port Status:
> Port 1: 0000.0100 power
> Port 2: 0000.0100 power
> Device Status: 0x0001
> Self Powered
>
> Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
> Device Descriptor:
> bLength 18
> bDescriptorType 1
> bcdUSB 1.10
> bDeviceClass 9 Hub
> bDeviceSubClass 0 Unused
> bDeviceProtocol 0 Full speed (or root) hub
> bMaxPacketSize0 64
> idVendor 0x1d6b Linux Foundation
> idProduct 0x0001 1.1 root hub
> bcdDevice 3.05
> iManufacturer 3 Linux 3.5.0 uhci_hcd
> iProduct 2 UHCI Host Controller
> iSerial 1 0000:00:1d.1
> bNumConfigurations 1
> Configuration Descriptor:
> bLength 9
> bDescriptorType 2
> wTotalLength 25
> bNumInterfaces 1
> bConfigurationValue 1
> iConfiguration 0
> bmAttributes 0xe0
> Self Powered
> Remote Wakeup
> MaxPower 0mA
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 0
> bAlternateSetting 0
> bNumEndpoints 1
> bInterfaceClass 9 Hub
> bInterfaceSubClass 0 Unused
> bInterfaceProtocol 0 Full speed (or root) hub
> iInterface 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x81 EP 1 IN
> bmAttributes 3
> Transfer Type Interrupt
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0002 1x 2 bytes
> bInterval 255
> Hub Descriptor:
> bLength 9
> bDescriptorType 41
> nNbrPorts 2
> wHubCharacteristic 0x000a
> No power switching (usb 1.0)
> Per-port overcurrent protection
> bPwrOn2PwrGood 1 * 2 milli seconds
> bHubContrCurrent 0 milli Ampere
> DeviceRemovable 0x00
> PortPwrCtrlMask 0xff
> Hub Port Status:
> Port 1: 0000.0100 power
> Port 2: 0000.0100 power
> Device Status: 0x0001
> Self Powered
>
> Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
> Device Descriptor:
> bLength 18
> bDescriptorType 1
> bcdUSB 1.10
> bDeviceClass 9 Hub
> bDeviceSubClass 0 Unused
> bDeviceProtocol 0 Full speed (or root) hub
> bMaxPacketSize0 64
> idVendor 0x1d6b Linux Foundation
> idProduct 0x0001 1.1 root hub
> bcdDevice 3.05
> iManufacturer 3 Linux 3.5.0 uhci_hcd
> iProduct 2 UHCI Host Controller
> iSerial 1 0000:00:1d.2
> bNumConfigurations 1
> Configuration Descriptor:
> bLength 9
> bDescriptorType 2
> wTotalLength 25
> bNumInterfaces 1
> bConfigurationValue 1
> iConfiguration 0
> bmAttributes 0xe0
> Self Powered
> Remote Wakeup
> MaxPower 0mA
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 0
> bAlternateSetting 0
> bNumEndpoints 1
> bInterfaceClass 9 Hub
> bInterfaceSubClass 0 Unused
> bInterfaceProtocol 0 Full speed (or root) hub
> iInterface 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x81 EP 1 IN
> bmAttributes 3
> Transfer Type Interrupt
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0002 1x 2 bytes
> bInterval 255
> Hub Descriptor:
> bLength 9
> bDescriptorType 41
> nNbrPorts 2
> wHubCharacteristic 0x000a
> No power switching (usb 1.0)
> Per-port overcurrent protection
> bPwrOn2PwrGood 1 * 2 milli seconds
> bHubContrCurrent 0 milli Ampere
> DeviceRemovable 0x00
> PortPwrCtrlMask 0xff
> Hub Port Status:
> Port 1: 0000.0100 power
> Port 2: 0000.0100 power
> Device Status: 0x0001
> Self Powered
>
> Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
> Device Descriptor:
> bLength 18
> bDescriptorType 1
> bcdUSB 1.10
> bDeviceClass 9 Hub
> bDeviceSubClass 0 Unused
> bDeviceProtocol 0 Full speed (or root) hub
> bMaxPacketSize0 64
> idVendor 0x1d6b Linux Foundation
> idProduct 0x0001 1.1 root hub
> bcdDevice 3.05
> iManufacturer 3 Linux 3.5.0 uhci_hcd
> iProduct 2 UHCI Host Controller
> iSerial 1 0000:00:1d.3
> bNumConfigurations 1
> Configuration Descriptor:
> bLength 9
> bDescriptorType 2
> wTotalLength 25
> bNumInterfaces 1
> bConfigurationValue 1
> iConfiguration 0
> bmAttributes 0xe0
> Self Powered
> Remote Wakeup
> MaxPower 0mA
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 0
> bAlternateSetting 0
> bNumEndpoints 1
> bInterfaceClass 9 Hub
> bInterfaceSubClass 0 Unused
> bInterfaceProtocol 0 Full speed (or root) hub
> iInterface 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x81 EP 1 IN
> bmAttributes 3
> Transfer Type Interrupt
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0002 1x 2 bytes
> bInterval 255
> Hub Descriptor:
> bLength 9
> bDescriptorType 41
> nNbrPorts 2
> wHubCharacteristic 0x000a
> No power switching (usb 1.0)
> Per-port overcurrent protection
> bPwrOn2PwrGood 1 * 2 milli seconds
> bHubContrCurrent 0 milli Ampere
> DeviceRemovable 0x00
> PortPwrCtrlMask 0xff
> Hub Port Status:
> Port 1: 0000.0100 power
> Port 2: 0000.0100 power
> Device Status: 0x0001
> Self Powered
>
> Bus 002 Device 003: ID 045e:0047 Microsoft Corp. IntelliMouse Explorer 3.0
> Device Descriptor:
> bLength 18
> bDescriptorType 1
> bcdUSB 1.10
> bDeviceClass 0 (Defined at Interface level)
> bDeviceSubClass 0
> bDeviceProtocol 0
> bMaxPacketSize0 8
> idVendor 0x045e Microsoft Corp.
> idProduct 0x0047 IntelliMouse Explorer 3.0
> bcdDevice 3.00
> iManufacturer 1 Microsoft
> iProduct 3 Microsoft 5-Button Mouse with IntelliEye(TM)
> iSerial 0
> bNumConfigurations 1
> Configuration Descriptor:
> bLength 9
> bDescriptorType 2
> wTotalLength 34
> bNumInterfaces 1
> bConfigurationValue 1
> iConfiguration 0
> bmAttributes 0xa0
> (Bus Powered)
> Remote Wakeup
> MaxPower 100mA
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 0
> bAlternateSetting 0
> bNumEndpoints 1
> bInterfaceClass 3 Human Interface Device
> bInterfaceSubClass 1 Boot Interface Subclass
> bInterfaceProtocol 2 Mouse
> iInterface 0
> HID Device Descriptor:
> bLength 9
> bDescriptorType 33
> bcdHID 1.10
> bCountryCode 0 Not supported
> bNumDescriptors 1
> bDescriptorType 34 Report
> wDescriptorLength 72
> Report Descriptors:
> ** UNAVAILABLE **
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x81 EP 1 IN
> bmAttributes 3
> Transfer Type Interrupt
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0004 1x 4 bytes
> bInterval 10
> Device Status: 0x0000
> (Bus Powered)
>
> Bus 002 Device 004: ID 0c45:62e0 Microdia MSI Starcam Racer
> Device Descriptor:
> bLength 18
> bDescriptorType 1
> bcdUSB 2.00
> bDeviceClass 239 Miscellaneous Device
> bDeviceSubClass 2 ?
> bDeviceProtocol 1 Interface Association
> bMaxPacketSize0 64
> idVendor 0x0c45 Microdia
> idProduct 0x62e0 MSI Starcam Racer
> bcdDevice 1.00
> iManufacturer 2 Sonix Technology Co., Ltd.
> iProduct 1 USB 2.0 Camera
> iSerial 0
> bNumConfigurations 1
> Configuration Descriptor:
> bLength 9
> bDescriptorType 2
> wTotalLength 1051
> bNumInterfaces 4
> bConfigurationValue 1
> iConfiguration 0
> bmAttributes 0x80
> (Bus Powered)
> MaxPower 250mA
> Interface Association:
> bLength 8
> bDescriptorType 11
> bFirstInterface 0
> bInterfaceCount 2
> bFunctionClass 14 Video
> bFunctionSubClass 3 Video Interface Collection
> bFunctionProtocol 0
> iFunction 5 USB Camera
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 0
> bAlternateSetting 0
> bNumEndpoints 1
> bInterfaceClass 14 Video
> bInterfaceSubClass 1 Video Control
> bInterfaceProtocol 0
> iInterface 5 USB Camera
> VideoControl Interface Descriptor:
> bLength 13
> bDescriptorType 36
> bDescriptorSubtype 1 (HEADER)
> bcdUVC 1.00
> wTotalLength 103
> dwClockFrequency 15.000000MHz
> bInCollection 1
> baInterfaceNr( 0) 1
> VideoControl Interface Descriptor:
> bLength 9
> bDescriptorType 36
> bDescriptorSubtype 3 (OUTPUT_TERMINAL)
> bTerminalID 2
> wTerminalType 0x0101 USB Streaming
> bAssocTerminal 0
> bSourceID 5
> iTerminal 0
> VideoControl Interface Descriptor:
> bLength 26
> bDescriptorType 36
> bDescriptorSubtype 6 (EXTENSION_UNIT)
> bUnitID 4
> guidExtensionCode {7033f028-1163-2e4a-ba2c-6890eb334016}
> bNumControl 8
> bNrPins 1
> baSourceID( 0) 3
> bControlSize 1
> bmControls( 0) 0x3f
> iExtension 0
> VideoControl Interface Descriptor:
> bLength 26
> bDescriptorType 36
> bDescriptorSubtype 6 (EXTENSION_UNIT)
> bUnitID 5
> guidExtensionCode {3fae1228-d7bc-114e-a357-6f1edef7d61d}
> bNumControl 8
> bNrPins 1
> baSourceID( 0) 4
> bControlSize 1
> bmControls( 0) 0x00
> iExtension 0
> VideoControl Interface Descriptor:
> bLength 18
> bDescriptorType 36
> bDescriptorSubtype 2 (INPUT_TERMINAL)
> bTerminalID 1
> wTerminalType 0x0201 Camera Sensor
> bAssocTerminal 0
> iTerminal 0
> wObjectiveFocalLengthMin 0
> wObjectiveFocalLengthMax 0
> wOcularFocalLength 0
> bControlSize 3
> bmControls 0x0002002e
> Auto-Exposure Mode
> Auto-Exposure Priority
> Exposure Time (Absolute)
> Focus (Absolute)
> Focus, Auto
> VideoControl Interface Descriptor:
> bLength 11
> bDescriptorType 36
> bDescriptorSubtype 5 (PROCESSING_UNIT)
> Warning: Descriptor too short
> bUnitID 3
> bSourceID 1
> wMaxMultiplier 0
> bControlSize 2
> bmControls 0x0000177f
> Brightness
> Contrast
> Hue
> Saturation
> Sharpness
> Gamma
> White Balance Temperature
> Backlight Compensation
> Gain
> Power Line Frequency
> White Balance Temperature, Auto
> iProcessing 0
> bmVideoStandards 0x 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x83 EP 3 IN
> bmAttributes 3
> Transfer Type Interrupt
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0010 1x 16 bytes
> bInterval 6
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 1
> bAlternateSetting 0
> bNumEndpoints 0
> bInterfaceClass 14 Video
> bInterfaceSubClass 2 Video Streaming
> bInterfaceProtocol 0
> iInterface 0
> VideoStreaming Interface Descriptor:
> bLength 15
> bDescriptorType 36
> bDescriptorSubtype 1 (INPUT_HEADER)
> bNumFormats 2
> wTotalLength 692
> bEndPointAddress 129
> bmInfo 0
> bTerminalLink 2
> bStillCaptureMethod 2
> bTriggerSupport 1
> bTriggerUsage 1
> bControlSize 1
> bmaControls( 0) 27
> bmaControls( 1) 27
> VideoStreaming Interface Descriptor:
> bLength 27
> bDescriptorType 36
> bDescriptorSubtype 4 (FORMAT_UNCOMPRESSED)
> bFormatIndex 1
> bNumFrameDescriptors 6
> guidFormat
> {59555932-0000-1000-8000-00aa00389b71}
> bBitsPerPixel 16
> bDefaultFrameIndex 1
> bAspectRatioX 0
> bAspectRatioY 0
> bmInterlaceFlags 0x00
> Interlaced stream or variable: No
> Fields per frame: 2 fields
> Field 1 first: No
> Field pattern: Field 1 only
> bCopyProtect 0
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
> bFrameIndex 1
> bmCapabilities 0x00
> Still image unsupported
> wWidth 640
> wHeight 480
> dwMinBitRate 3072000
> dwMaxBitRate 18432000
> dwMaxVideoFrameBufferSize 614400
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
> bFrameIndex 2
> bmCapabilities 0x00
> Still image unsupported
> wWidth 352
> wHeight 288
> dwMinBitRate 1013760
> dwMaxBitRate 6082560
> dwMaxVideoFrameBufferSize 202752
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
> bFrameIndex 3
> bmCapabilities 0x00
> Still image unsupported
> wWidth 320
> wHeight 240
> dwMinBitRate 768000
> dwMaxBitRate 4608000
> dwMaxVideoFrameBufferSize 153600
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
> bFrameIndex 4
> bmCapabilities 0x00
> Still image unsupported
> wWidth 176
> wHeight 144
> dwMinBitRate 253440
> dwMaxBitRate 1520640
> dwMaxVideoFrameBufferSize 50688
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
> bFrameIndex 5
> bmCapabilities 0x00
> Still image unsupported
> wWidth 160
> wHeight 120
> dwMinBitRate 192000
> dwMaxBitRate 1152000
> dwMaxVideoFrameBufferSize 38400
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 34
> bDescriptorType 36
> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
> bFrameIndex 6
> bmCapabilities 0x00
> Still image unsupported
> wWidth 1280
> wHeight 1024
> dwMinBitRate 13107200
> dwMaxBitRate 23592960
> dwMaxVideoFrameBufferSize 2621440
> dwDefaultFrameInterval 1111111
> bFrameIntervalType 2
> dwFrameInterval( 0) 1111111
> dwFrameInterval( 1) 2000000
> VideoStreaming Interface Descriptor:
> bLength 30
> bDescriptorType 36
> bDescriptorSubtype 3 (STILL_IMAGE_FRAME)
> bEndpointAddress 0
> bNumImageSizePatterns 6
> wWidth( 0) 1280
> wHeight( 0) 1024
> wWidth( 1) 640
> wHeight( 1) 480
> wWidth( 2) 352
> wHeight( 2) 288
> wWidth( 3) 320
> wHeight( 3) 240
> wWidth( 4) 176
> wHeight( 4) 144
> wWidth( 5) 160
> wHeight( 5) 120
> bNumCompressionPatterns 6
> VideoStreaming Interface Descriptor:
> bLength 11
> bDescriptorType 36
> bDescriptorSubtype 6 (FORMAT_MJPEG)
> bFormatIndex 2
> bNumFrameDescriptors 6
> bFlags 0
> Fixed-size samples: No
> bDefaultFrameIndex 1
> bAspectRatioX 0
> bAspectRatioY 0
> bmInterlaceFlags 0x00
> Interlaced stream or variable: No
> Fields per frame: 1 fields
> Field 1 first: No
> Field pattern: Field 1 only
> bCopyProtect 0
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 7 (FRAME_MJPEG)
> bFrameIndex 1
> bmCapabilities 0x00
> Still image unsupported
> wWidth 640
> wHeight 480
> dwMinBitRate 384000
> dwMaxBitRate 2304000
> dwMaxVideoFrameBufferSize 76800
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 7 (FRAME_MJPEG)
> bFrameIndex 2
> bmCapabilities 0x00
> Still image unsupported
> wWidth 352
> wHeight 288
> dwMinBitRate 126720
> dwMaxBitRate 760320
> dwMaxVideoFrameBufferSize 25344
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 7 (FRAME_MJPEG)
> bFrameIndex 3
> bmCapabilities 0x00
> Still image unsupported
> wWidth 320
> wHeight 240
> dwMinBitRate 96000
> dwMaxBitRate 576000
> dwMaxVideoFrameBufferSize 19200
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 7 (FRAME_MJPEG)
> bFrameIndex 4
> bmCapabilities 0x00
> Still image unsupported
> wWidth 176
> wHeight 144
> dwMinBitRate 31680
> dwMaxBitRate 190080
> dwMaxVideoFrameBufferSize 6336
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 7 (FRAME_MJPEG)
> bFrameIndex 5
> bmCapabilities 0x00
> Still image unsupported
> wWidth 160
> wHeight 120
> dwMinBitRate 24000
> dwMaxBitRate 144000
> dwMaxVideoFrameBufferSize 4800
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 38
> bDescriptorType 36
> bDescriptorSubtype 7 (FRAME_MJPEG)
> bFrameIndex 6
> bmCapabilities 0x00
> Still image unsupported
> wWidth 1280
> wHeight 1024
> dwMinBitRate 1638400
> dwMaxBitRate 4915200
> dwMaxVideoFrameBufferSize 327680
> dwDefaultFrameInterval 666666
> bFrameIntervalType 3
> dwFrameInterval( 0) 666666
> dwFrameInterval( 1) 1000000
> dwFrameInterval( 2) 2000000
> VideoStreaming Interface Descriptor:
> bLength 31
> bDescriptorType 36
> bDescriptorSubtype 3 (STILL_IMAGE_FRAME)
> bEndpointAddress 0
> bNumImageSizePatterns 6
> wWidth( 0) 1280
> wHeight( 0) 1024
> wWidth( 1) 640
> wHeight( 1) 480
> wWidth( 2) 352
> wHeight( 2) 288
> wWidth( 3) 320
> wHeight( 3) 240
> wWidth( 4) 176
> wHeight( 4) 144
> wWidth( 5) 160
> wHeight( 5) 120
> bNumCompressionPatterns 6
> bCompression( 0) 0
> VideoStreaming Interface Descriptor:
> bLength 6
> bDescriptorType 36
> bDescriptorSubtype 13 (COLORFORMAT)
> bColorPrimaries 1 (BT.709,sRGB)
> bTransferCharacteristics 1 (BT.709)
> bMatrixCoefficients 4 (SMPTE 170M (BT.601))
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 1
> bAlternateSetting 1
> bNumEndpoints 1
> bInterfaceClass 14 Video
> bInterfaceSubClass 2 Video Streaming
> bInterfaceProtocol 0
> iInterface 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x81 EP 1 IN
> bmAttributes 5
> Transfer Type Isochronous
> Synch Type Asynchronous
> Usage Type Data
> wMaxPacketSize 0x0080 1x 128 bytes
> bInterval 1
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 1
> bAlternateSetting 2
> bNumEndpoints 1
> bInterfaceClass 14 Video
> bInterfaceSubClass 2 Video Streaming
> bInterfaceProtocol 0
> iInterface 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x81 EP 1 IN
> bmAttributes 5
> Transfer Type Isochronous
> Synch Type Asynchronous
> Usage Type Data
> wMaxPacketSize 0x0100 1x 256 bytes
> bInterval 1
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 1
> bAlternateSetting 3
> bNumEndpoints 1
> bInterfaceClass 14 Video
> bInterfaceSubClass 2 Video Streaming
> bInterfaceProtocol 0
> iInterface 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x81 EP 1 IN
> bmAttributes 5
> Transfer Type Isochronous
> Synch Type Asynchronous
> Usage Type Data
> wMaxPacketSize 0x0320 1x 800 bytes
> bInterval 1
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 1
> bAlternateSetting 4
> bNumEndpoints 1
> bInterfaceClass 14 Video
> bInterfaceSubClass 2 Video Streaming
> bInterfaceProtocol 0
> iInterface 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x81 EP 1 IN
> bmAttributes 5
> Transfer Type Isochronous
> Synch Type Asynchronous
> Usage Type Data
> wMaxPacketSize 0x0b20 2x 800 bytes
> bInterval 1
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 1
> bAlternateSetting 5
> bNumEndpoints 1
> bInterfaceClass 14 Video
> bInterfaceSubClass 2 Video Streaming
> bInterfaceProtocol 0
> iInterface 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x81 EP 1 IN
> bmAttributes 5
> Transfer Type Isochronous
> Synch Type Asynchronous
> Usage Type Data
> wMaxPacketSize 0x1320 3x 800 bytes
> bInterval 1
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 1
> bAlternateSetting 6
> bNumEndpoints 1
> bInterfaceClass 14 Video
> bInterfaceSubClass 2 Video Streaming
> bInterfaceProtocol 0
> iInterface 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x81 EP 1 IN
> bmAttributes 5
> Transfer Type Isochronous
> Synch Type Asynchronous
> Usage Type Data
> wMaxPacketSize 0x1400 3x 1024 bytes
> bInterval 1
> Interface Association:
> bLength 8
> bDescriptorType 11
> bFirstInterface 2
> bInterfaceCount 2
> bFunctionClass 1 Audio
> bFunctionSubClass 0
> bFunctionProtocol 0
> iFunction 4 USB Audio Device
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 2
> bAlternateSetting 0
> bNumEndpoints 0
> bInterfaceClass 1 Audio
> bInterfaceSubClass 1 Control Device
> bInterfaceProtocol 0
> iInterface 4 USB Audio Device
> AudioControl Interface Descriptor:
> bLength 9
> bDescriptorType 36
> bDescriptorSubtype 1 (HEADER)
> bcdADC 1.00
> wTotalLength 41
> bInCollection 1
> baInterfaceNr( 0) 3
> AudioControl Interface Descriptor:
> bLength 12
> bDescriptorType 36
> bDescriptorSubtype 2 (INPUT_TERMINAL)
> bTerminalID 1
> wTerminalType 0x0201 Microphone
> bAssocTerminal 0
> bNrChannels 1
> wChannelConfig 0x0000
> iChannelNames 0
> iTerminal 0
> AudioControl Interface Descriptor:
> bLength 11
> bDescriptorType 36
> bDescriptorSubtype 6 (FEATURE_UNIT)
> bUnitID 2
> bSourceID 1
> bControlSize 2
> bmaControls( 0) 0x01
> bmaControls( 0) 0x00
> Mute Control
> bmaControls( 1) 0x02
> bmaControls( 1) 0x00
> Volume Control
> iFeature 0
> AudioControl Interface Descriptor:
> bLength 9
> bDescriptorType 36
> bDescriptorSubtype 3 (OUTPUT_TERMINAL)
> bTerminalID 3
> wTerminalType 0x0101 USB Streaming
> bAssocTerminal 0
> bSourceID 2
> iTerminal 0
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 3
> bAlternateSetting 0
> bNumEndpoints 0
> bInterfaceClass 1 Audio
> bInterfaceSubClass 2 Streaming
> bInterfaceProtocol 0
> iInterface 0
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 3
> bAlternateSetting 1
> bNumEndpoints 1
> bInterfaceClass 1 Audio
> bInterfaceSubClass 2 Streaming
> bInterfaceProtocol 0
> iInterface 0
> AudioStreaming Interface Descriptor:
> bLength 7
> bDescriptorType 36
> bDescriptorSubtype 1 (AS_GENERAL)
> bTerminalLink 3
> bDelay 1 frames
> wFormatTag 1 PCM
> AudioStreaming Interface Descriptor:
> bLength 14
> bDescriptorType 36
> bDescriptorSubtype 2 (FORMAT_TYPE)
> bFormatType 1 (FORMAT_TYPE_I)
> bNrChannels 1
> bSubframeSize 2
> bBitResolution 16
> bSamFreqType 2 Discrete
> tSamFreq[ 0] 8000
> tSamFreq[ 1] 16000
> Endpoint Descriptor:
> bLength 9
> bDescriptorType 5
> bEndpointAddress 0x84 EP 4 IN
> bmAttributes 5
> Transfer Type Isochronous
> Synch Type Asynchronous
> Usage Type Data
> wMaxPacketSize 0x0190 1x 400 bytes
> bInterval 4
> bRefresh 0
> bSynchAddress 0
> AudioControl Endpoint Descriptor:
> bLength 7
> bDescriptorType 37
> bDescriptorSubtype 1 (EP_GENERAL)
> bmAttributes 0x01
> Sampling Frequency
> bLockDelayUnits 0 Undefined
> wLockDelay 0 Undefined
> Device Qualifier (for other device speed):
> bLength 10
> bDescriptorType 6
> bcdUSB 2.00
> bDeviceClass 239 Miscellaneous Device
> bDeviceSubClass 2 ?
> bDeviceProtocol 1 Interface Association
> bMaxPacketSize0 64
> bNumConfigurations 1
> Device Status: 0x0002
> (Bus Powered)
> Remote Wakeup Enabled
>
> Bus 002 Device 005: ID 03eb:0902 Atmel Corp. 4-Port Hub
> Device Descriptor:
> bLength 18
> bDescriptorType 1
> bcdUSB 1.10
> bDeviceClass 9 Hub
> bDeviceSubClass 0 Unused
> bDeviceProtocol 0 Full speed (or root) hub
> bMaxPacketSize0 8
> idVendor 0x03eb Atmel Corp.
> idProduct 0x0902 4-Port Hub
> bcdDevice 1.00
> iManufacturer 0
> iProduct 2 USB 2.0 Hub
> iSerial 0
> bNumConfigurations 1
> Configuration Descriptor:
> bLength 9
> bDescriptorType 2
> wTotalLength 34
> bNumInterfaces 1
> bConfigurationValue 1
> iConfiguration 0
> bmAttributes 0xe0
> Self Powered
> Remote Wakeup
> MaxPower 100mA
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 0
> bAlternateSetting 0
> bNumEndpoints 1
> bInterfaceClass 9 Hub
> bInterfaceSubClass 0 Unused
> bInterfaceProtocol 0 Full speed (or root) hub
> iInterface 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x81 EP 1 IN
> bmAttributes 3
> Transfer Type Interrupt
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0001 1x 1 bytes
> bInterval 255
> ** UNRECOGNIZED: 09 29 04 09 00 32 64 00 1e
> Hub Descriptor:
> bLength 9
> bDescriptorType 41
> nNbrPorts 4
> wHubCharacteristic 0x0009
> Per-port power switching
> Per-port overcurrent protection
> bPwrOn2PwrGood 50 * 2 milli seconds
> bHubContrCurrent 100 milli Ampere
> DeviceRemovable 0x00
> PortPwrCtrlMask 0x1e
> Hub Port Status:
> Port 1: 0000.0303 lowspeed power enable connect
> Port 2: 0000.0100 power
> Port 3: 0000.0100 power
> Port 4: 0000.0100 power
> Device Status: 0x0001
> Self Powered
>
> Bus 002 Device 006: ID 413c:2003 Dell Computer Corp. Keyboard
> Device Descriptor:
> bLength 18
> bDescriptorType 1
> bcdUSB 1.10
> bDeviceClass 0 (Defined at Interface level)
> bDeviceSubClass 0
> bDeviceProtocol 0
> bMaxPacketSize0 8
> idVendor 0x413c Dell Computer Corp.
> idProduct 0x2003 Keyboard
> bcdDevice 3.06
> iManufacturer 1 Dell
> iProduct 2
> iSerial 0
> bNumConfigurations 1
> Configuration Descriptor:
> bLength 9
> bDescriptorType 2
> wTotalLength 34
> bNumInterfaces 1
> bConfigurationValue 1
> iConfiguration 0
> bmAttributes 0xa0
> (Bus Powered)
> Remote Wakeup
> MaxPower 70mA
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 0
> bAlternateSetting 0
> bNumEndpoints 1
> bInterfaceClass 3 Human Interface Device
> bInterfaceSubClass 1 Boot Interface Subclass
> bInterfaceProtocol 1 Keyboard
> iInterface 0
> HID Device Descriptor:
> bLength 9
> bDescriptorType 33
> bcdHID 1.10
> bCountryCode 0 Not supported
> bNumDescriptors 1
> bDescriptorType 34 Report
> wDescriptorLength 65
> Report Descriptors:
> ** UNAVAILABLE **
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x81 EP 1 IN
> bmAttributes 3
> Transfer Type Interrupt
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0008 1x 8 bytes
> bInterval 24
> Device Status: 0x0000
> (Bus Powered)
>
> --
> Regards,
> Sarbojit
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@...r.kernel.org
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