| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <CAPVz0n3b6Oe8B2oyy3U6keFnH2X0GSvNrwJCjVUk5RAf+iwOug@mail.gmail.com> Date: Tue, 27 Jan 2026 08:50:55 +0200 From: Svyatoslav Ryhel <clamor95@...il.com> To: Lars Melin <larsm17@...il.com> Cc: Oliver Neukum <oneukum@...e.com>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH v1 1/1] usb: csc-acm: add Infineon/Comneon modem support (1519:0020) вт, 27 січ. 2026 р. о 03:12 Lars Melin <larsm17@...il.com> пише: > > On 2026-01-26 21:55, Svyatoslav Ryhel wrote: > /snip > > > > Bus 001 Device 002: ID 1519:0020 Comneon HSIC Device > > Couldn't open device, some information will be missing > > Negotiated speed: High Speed (480Mbps) > > Device Descriptor: > > bLength 18 > > bDescriptorType 1 > > bcdUSB 2.00 > > bDeviceClass 2 [unknown] > > bDeviceSubClass 0 [unknown] > > bDeviceProtocol 0 > > bMaxPacketSize0 64 > > idVendor 0x1519 Comneon > > idProduct 0x0020 HSIC Device > > bcdDevice 12.74 > > iManufacturer 1 Comneon > > iProduct 2 HSIC Device > > iSerial 3 0123456789 > > bNumConfigurations 1 > > Configuration Descriptor: > > bLength 9 > > bDescriptorType 2 > > wTotalLength 0x0111 > > bNumInterfaces 8 > > bConfigurationValue 1 > > iConfiguration 0 > > bmAttributes 0xc0 > > Self Powered > > MaxPower 100mA > > Interface Association: > > bLength 8 > > bDescriptorType 11 > > bFirstInterface 0 > > bInterfaceCount 2 > > bFunctionClass 2 [unknown] > > bFunctionSubClass 2 [unknown] > > bFunctionProtocol 1 > > iFunction 0 > > Interface Descriptor: > > bLength 9 > > bDescriptorType 4 > > bInterfaceNumber 0 > > bAlternateSetting 0 > > bNumEndpoints 1 > > bInterfaceClass 2 [unknown] > > bInterfaceSubClass 2 [unknown] > > bInterfaceProtocol 1 > > iInterface 4 > > CDC Header: > > bcdCDC 1.10 > > CDC Union: > > bMasterInterface 0 > > bSlaveInterface 1 > > CDC Call Management: > > bmCapabilities 0x00 > > bDataInterface 1 > > CDC ACM: > > bmCapabilities 0x07 > > sends break > > line coding and serial state > > get/set/clear comm features > > Endpoint Descriptor: > > bLength 7 > > bDescriptorType 5 > > bEndpointAddress 0x85 EP 5 IN > > bmAttributes 3 > > Transfer Type Interrupt > > Synch Type None > > Usage Type Data > > wMaxPacketSize 0x0040 1x 64 bytes > > bInterval 4 > > Interface Descriptor: > > bLength 9 > > bDescriptorType 4 > > bInterfaceNumber 1 > > bAlternateSetting 0 > > bNumEndpoints 2 > > bInterfaceClass 10 [unknown] > > bInterfaceSubClass 0 [unknown] > > bInterfaceProtocol 0 > > iInterface 5 > > Endpoint Descriptor: > > bLength 7 > > bDescriptorType 5 > > bEndpointAddress 0x81 EP 1 IN > > bmAttributes 2 > > Transfer Type Bulk > > Synch Type None > > Usage Type Data > > wMaxPacketSize 0x0200 1x 512 bytes > > bInterval 0 > > Endpoint Descriptor: > > bLength 7 > > bDescriptorType 5 > > bEndpointAddress 0x01 EP 1 OUT > > bmAttributes 2 > > Transfer Type Bulk > > Synch Type None > > Usage Type Data > > wMaxPacketSize 0x0200 1x 512 bytes > > bInterval 0 > > Interface Association: > > bLength 8 > > bDescriptorType 11 > > bFirstInterface 2 > > bInterfaceCount 2 > > bFunctionClass 2 [unknown] > > bFunctionSubClass 2 [unknown] > > bFunctionProtocol 1 > > iFunction 0 > > Interface Descriptor: > > bLength 9 > > bDescriptorType 4 > > bInterfaceNumber 2 > > bAlternateSetting 0 > > bNumEndpoints 1 > > bInterfaceClass 2 [unknown] > > bInterfaceSubClass 2 [unknown] > > bInterfaceProtocol 1 > > iInterface 6 > > CDC Header: > > bcdCDC 1.10 > > CDC Union: > > bMasterInterface 2 > > bSlaveInterface 3 > > CDC Call Management: > > bmCapabilities 0x00 > > bDataInterface 3 > > CDC ACM: > > bmCapabilities 0x07 > > sends break > > line coding and serial state > > get/set/clear comm features > > Endpoint Descriptor: > > bLength 7 > > bDescriptorType 5 > > bEndpointAddress 0x86 EP 6 IN > > bmAttributes 3 > > Transfer Type Interrupt > > Synch Type None > > Usage Type Data > > wMaxPacketSize 0x0040 1x 64 bytes > > bInterval 4 > > Interface Descriptor: > > bLength 9 > > bDescriptorType 4 > > bInterfaceNumber 3 > > bAlternateSetting 0 > > bNumEndpoints 2 > > bInterfaceClass 10 [unknown] > > bInterfaceSubClass 0 [unknown] > > bInterfaceProtocol 0 > > iInterface 7 > > Endpoint Descriptor: > > bLength 7 > > bDescriptorType 5 > > bEndpointAddress 0x82 EP 2 IN > > bmAttributes 2 > > Transfer Type Bulk > > Synch Type None > > Usage Type Data > > wMaxPacketSize 0x0200 1x 512 bytes > > bInterval 0 > > Endpoint Descriptor: > > bLength 7 > > bDescriptorType 5 > > bEndpointAddress 0x02 EP 2 OUT > > bmAttributes 2 > > Transfer Type Bulk > > Synch Type None > > Usage Type Data > > wMaxPacketSize 0x0200 1x 512 bytes > > bInterval 0 > > Interface Association: > > bLength 8 > > bDescriptorType 11 > > bFirstInterface 4 > > bInterfaceCount 2 > > bFunctionClass 2 [unknown] > > bFunctionSubClass 2 [unknown] > > bFunctionProtocol 1 > > iFunction 0 > > Interface Descriptor: > > bLength 9 > > bDescriptorType 4 > > bInterfaceNumber 4 > > bAlternateSetting 0 > > bNumEndpoints 1 > > bInterfaceClass 2 [unknown] > > bInterfaceSubClass 2 [unknown] > > bInterfaceProtocol 1 > > iInterface 8 > > CDC Header: > > bcdCDC 1.10 > > CDC Union: > > bMasterInterface 4 > > bSlaveInterface 5 > > CDC Call Management: > > bmCapabilities 0x00 > > bDataInterface 5 > > CDC ACM: > > bmCapabilities 0x07 > > sends break > > line coding and serial state > > get/set/clear comm features > > Endpoint Descriptor: > > bLength 7 > > bDescriptorType 5 > > bEndpointAddress 0x87 EP 7 IN > > bmAttributes 3 > > Transfer Type Interrupt > > Synch Type None > > Usage Type Data > > wMaxPacketSize 0x0040 1x 64 bytes > > bInterval 4 > > Interface Descriptor: > > bLength 9 > > bDescriptorType 4 > > bInterfaceNumber 5 > > bAlternateSetting 0 > > bNumEndpoints 2 > > bInterfaceClass 10 [unknown] > > bInterfaceSubClass 0 [unknown] > > bInterfaceProtocol 0 > > iInterface 9 > > Endpoint Descriptor: > > bLength 7 > > bDescriptorType 5 > > bEndpointAddress 0x83 EP 3 IN > > bmAttributes 2 > > Transfer Type Bulk > > Synch Type None > > Usage Type Data > > wMaxPacketSize 0x0200 1x 512 bytes > > bInterval 0 > > Endpoint Descriptor: > > bLength 7 > > bDescriptorType 5 > > bEndpointAddress 0x03 EP 3 OUT > > bmAttributes 2 > > Transfer Type Bulk > > Synch Type None > > Usage Type Data > > wMaxPacketSize 0x0200 1x 512 bytes > > bInterval 0 > > Interface Association: > > bLength 8 > > bDescriptorType 11 > > bFirstInterface 6 > > bInterfaceCount 2 > > bFunctionClass 2 [unknown] > > bFunctionSubClass 2 [unknown] > > bFunctionProtocol 1 > > iFunction 0 > > Interface Descriptor: > > bLength 9 > > bDescriptorType 4 > > bInterfaceNumber 6 > > bAlternateSetting 0 > > bNumEndpoints 1 > > bInterfaceClass 2 [unknown] > > bInterfaceSubClass 2 [unknown] > > bInterfaceProtocol 1 > > iInterface 10 > > CDC Header: > > bcdCDC 1.10 > > CDC Union: > > bMasterInterface 6 > > bSlaveInterface 7 > > CDC Call Management: > > bmCapabilities 0x00 > > bDataInterface 7 > > CDC ACM: > > bmCapabilities 0x07 > > sends break > > line coding and serial state > > get/set/clear comm features > > Endpoint Descriptor: > > bLength 7 > > bDescriptorType 5 > > bEndpointAddress 0x88 EP 8 IN > > bmAttributes 3 > > Transfer Type Interrupt > > Synch Type None > > Usage Type Data > > wMaxPacketSize 0x0040 1x 64 bytes > > bInterval 4 > > Interface Descriptor: > > bLength 9 > > bDescriptorType 4 > > bInterfaceNumber 7 > > bAlternateSetting 0 > > bNumEndpoints 2 > > bInterfaceClass 10 [unknown] > > bInterfaceSubClass 0 [unknown] > > bInterfaceProtocol 0 > > iInterface 11 > > Endpoint Descriptor: > > bLength 7 > > bDescriptorType 5 > > bEndpointAddress 0x84 EP 4 IN > > bmAttributes 2 > > Transfer Type Bulk > > Synch Type None > > Usage Type Data > > wMaxPacketSize 0x0200 1x 512 bytes > > bInterval 0 > > Endpoint Descriptor: > > bLength 7 > > bDescriptorType 5 > > bEndpointAddress 0x04 EP 4 OUT > > bmAttributes 2 > > Transfer Type Bulk > > Synch Type None > > Usage Type Data > > wMaxPacketSize 0x0200 1x 512 bytes > > bInterval 0 > > > Hi, > > I can't see anything wrong with the union descriptor in your listing. > What is your reason for adding this device to cdc-acm? > Oh, that is good to hear. I have LG Optimus Vu (P895) Tegra30 based smartphone, it uses this modem which is placed on HSIC usb line and I have recently made it appear. Original LG downstream sources[1] add this device to acm_ids with NO_UNION_NORMAL so I transferred this change to mainline. [1] https://github.com/clamor-s/android_kernel_lge_p895/blob/master/drivers/usb/class/cdc-acm.c#L1837-L1839 > thanks > Lars
Powered by blists - more mailing lists