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Date: Fri, 03 Apr 2009 14:50:52 +0100
From: Alan Cox <alan@...rguk.ukuu.org.uk>
To: torvalds@...ux-foundation.org, linux-kernel@...r.kernel.org
Subject: [PATCH] LANANA: Change of management and resync
Bring the devices.txt back into some relationship with reality. Update the
documentation a bit.
Signed-off-by: Alan Cox <alan@...rguk.ukuu.org.uk>
---
Documentation/devices.txt | 121 ++++++++++++++++++++++-----------------------
1 files changed, 58 insertions(+), 63 deletions(-)
diff --git a/Documentation/devices.txt b/Documentation/devices.txt
index 62254d4..85a6a6d 100644
--- a/Documentation/devices.txt
+++ b/Documentation/devices.txt
@@ -1,7 +1,7 @@
LINUX ALLOCATED DEVICES (2.6+ version)
- Maintained by Torben Mathiasen <device@...ana.org>
+ Maintained by Alan Cox <device@...ana.org>
Last revised: 29 November 2006
@@ -67,6 +67,11 @@ up to date. Due to the number of registrations I have to maintain it
in "batch mode", so there is likely additional registrations that
haven't been listed yet.
+Fourth, remember that Linux now has extensive support for dynamic allocation
+of device numbering and can use sysfs and udev to handle the naming needs.
+There are still some exceptions in the serial and boot device area. Before
+asking for a device number make sure you actually need one.
+
Finally, sometimes I have to play "namespace police." Please don't be
offended. I often get submissions for /dev names that would be bound
to cause conflicts down the road. I am trying to avoid getting in a
@@ -101,7 +106,7 @@ Your cooperation is appreciated.
0 = /dev/ram0 First RAM disk
1 = /dev/ram1 Second RAM disk
...
- 250 = /dev/initrd Initial RAM disk {2.6}
+ 250 = /dev/initrd Initial RAM disk
Older kernels had /dev/ramdisk (1, 1) here.
/dev/initrd refers to a RAM disk which was preloaded
@@ -340,7 +345,7 @@ Your cooperation is appreciated.
14 = /dev/touchscreen/ucb1x00 UCB 1x00 touchscreen
15 = /dev/touchscreen/mk712 MK712 touchscreen
128 = /dev/beep Fancy beep device
- 129 = /dev/modreq Kernel module load request {2.6}
+ 129 =
130 = /dev/watchdog Watchdog timer port
131 = /dev/temperature Machine internal temperature
132 = /dev/hwtrap Hardware fault trap
@@ -350,10 +355,10 @@ Your cooperation is appreciated.
139 = /dev/openprom SPARC OpenBoot PROM
140 = /dev/relay8 Berkshire Products Octal relay card
141 = /dev/relay16 Berkshire Products ISO-16 relay card
- 142 = /dev/msr x86 model-specific registers {2.6}
+ 142 =
143 = /dev/pciconf PCI configuration space
144 = /dev/nvram Non-volatile configuration RAM
- 145 = /dev/hfmodem Soundcard shortwave modem control {2.6}
+ 145 = /dev/hfmodem Soundcard shortwave modem control
146 = /dev/graphics Linux/SGI graphics device
147 = /dev/opengl Linux/SGI OpenGL pipe
148 = /dev/gfx Linux/SGI graphics effects device
@@ -435,6 +440,9 @@ Your cooperation is appreciated.
228 = /dev/hpet HPET driver
229 = /dev/fuse Fuse (virtual filesystem in user-space)
230 = /dev/midishare MidiShare driver
+ 231 = /dev/snapshot System memory snapshot device
+ 232 = /dev/kvm Kernel-based virtual machine (hardware virtualization extensions)
+ 233 = /dev/kmview View-OS A process with a view
240-254 Reserved for local use
255 Reserved for MISC_DYNAMIC_MINOR
@@ -466,10 +474,7 @@ Your cooperation is appreciated.
The device names specified are proposed -- if there
are "standard" names for these devices, please let me know.
- 12 block MSCDEX CD-ROM callback support {2.6}
- 0 = /dev/dos_cd0 First MSCDEX CD-ROM
- 1 = /dev/dos_cd1 Second MSCDEX CD-ROM
- ...
+ 12 block
13 char Input core
0 = /dev/input/js0 First joystick
@@ -498,7 +503,7 @@ Your cooperation is appreciated.
2 = /dev/midi00 First MIDI port
3 = /dev/dsp Digital audio
4 = /dev/audio Sun-compatible digital audio
- 6 = /dev/sndstat Sound card status information {2.6}
+ 6 =
7 = /dev/audioctl SPARC audio control device
8 = /dev/sequencer2 Sequencer -- alternate device
16 = /dev/mixer1 Second soundcard mixer control
@@ -510,14 +515,7 @@ Your cooperation is appreciated.
34 = /dev/midi02 Third MIDI port
50 = /dev/midi03 Fourth MIDI port
- 14 block BIOS harddrive callback support {2.6}
- 0 = /dev/dos_hda First BIOS harddrive whole disk
- 64 = /dev/dos_hdb Second BIOS harddrive whole disk
- 128 = /dev/dos_hdc Third BIOS harddrive whole disk
- 192 = /dev/dos_hdd Fourth BIOS harddrive whole disk
-
- Partitions are handled in the same way as IDE disks
- (see major number 3).
+ 14 block
15 char Joystick
0 = /dev/js0 First analog joystick
@@ -535,14 +533,14 @@ Your cooperation is appreciated.
16 block GoldStar CD-ROM
0 = /dev/gscd GoldStar CD-ROM
- 17 char Chase serial card
+ 17 char OBSOLETE (was Chase serial card)
0 = /dev/ttyH0 First Chase port
1 = /dev/ttyH1 Second Chase port
...
17 block Optics Storage CD-ROM
0 = /dev/optcd Optics Storage CD-ROM
- 18 char Chase serial card - alternate devices
+ 18 char OBSOLETE (was Chase serial card - alternate devices)
0 = /dev/cuh0 Callout device for ttyH0
1 = /dev/cuh1 Callout device for ttyH1
...
@@ -644,8 +642,7 @@ Your cooperation is appreciated.
2 = /dev/sbpcd2 Panasonic CD-ROM controller 0 unit 2
3 = /dev/sbpcd3 Panasonic CD-ROM controller 0 unit 3
- 26 char Quanta WinVision frame grabber {2.6}
- 0 = /dev/wvisfgrab Quanta WinVision frame grabber
+ 26 char
26 block Second Matsushita (Panasonic/SoundBlaster) CD-ROM
0 = /dev/sbpcd4 Panasonic CD-ROM controller 1 unit 0
@@ -872,7 +869,7 @@ Your cooperation is appreciated.
and "user level packet I/O." This board is also
accessible as a standard networking "eth" device.
- 38 block Reserved for Linux/AP+
+ 38 block OBSOLETE (was Linux/AP+)
39 char ML-16P experimental I/O board
0 = /dev/ml16pa-a0 First card, first analog channel
@@ -892,29 +889,16 @@ Your cooperation is appreciated.
50 = /dev/ml16pb-c1 Second card, second counter/timer
51 = /dev/ml16pb-c2 Second card, third counter/timer
...
- 39 block Reserved for Linux/AP+
+ 39 block
- 40 char Matrox Meteor frame grabber {2.6}
- 0 = /dev/mmetfgrab Matrox Meteor frame grabber
+ 40 char
- 40 block Syquest EZ135 parallel port removable drive
- 0 = /dev/eza Parallel EZ135 drive, whole disk
-
- This device is obsolete and will be removed in a
- future version of Linux. It has been replaced with
- the parallel port IDE disk driver at major number 45.
- Partitions are handled in the same way as IDE disks
- (see major number 3).
+ 40 block
41 char Yet Another Micro Monitor
0 = /dev/yamm Yet Another Micro Monitor
- 41 block MicroSolutions BackPack parallel port CD-ROM
- 0 = /dev/bpcd BackPack CD-ROM
-
- This device is obsolete and will be removed in a
- future version of Linux. It has been replaced with
- the parallel port ATAPI CD-ROM driver at major number 46.
+ 41 block
42 char Demo/sample use
@@ -1681,13 +1665,7 @@ Your cooperation is appreciated.
disks (see major number 3) except that the limit on
partitions is 15.
- 93 char IBM Smart Capture Card frame grabber {2.6}
- 0 = /dev/iscc0 First Smart Capture Card
- 1 = /dev/iscc1 Second Smart Capture Card
- ...
- 128 = /dev/isccctl0 First Smart Capture Card control
- 129 = /dev/isccctl1 Second Smart Capture Card control
- ...
+ 93 char
93 block NAND Flash Translation Layer filesystem
0 = /dev/nftla First NFTL layer
@@ -1695,10 +1673,7 @@ Your cooperation is appreciated.
...
240 = /dev/nftlp 16th NTFL layer
- 94 char miroVIDEO DC10/30 capture/playback device {2.6}
- 0 = /dev/dcxx0 First capture card
- 1 = /dev/dcxx1 Second capture card
- ...
+ 94 char
94 block IBM S/390 DASD block storage
0 = /dev/dasda First DASD device, major
@@ -1791,11 +1766,7 @@ Your cooperation is appreciated.
...
15 = /dev/amiraid/ar?p15 15th partition
-102 char Philips SAA5249 Teletext signal decoder {2.6}
- 0 = /dev/tlk0 First Teletext decoder
- 1 = /dev/tlk1 Second Teletext decoder
- 2 = /dev/tlk2 Third Teletext decoder
- 3 = /dev/tlk3 Fourth Teletext decoder
+102 char
102 block Compressed block device
0 = /dev/cbd/a First compressed block device, whole device
@@ -1916,10 +1887,7 @@ Your cooperation is appreciated.
DAC960 (see major number 48) except that the limit on
partitions is 15.
-111 char Philips SAA7146-based audio/video card {2.6}
- 0 = /dev/av0 First A/V card
- 1 = /dev/av1 Second A/V card
- ...
+111 char
111 block Compaq Next Generation Drive Array, eighth controller
0 = /dev/cciss/c7d0 First logical drive, whole disk
@@ -2079,8 +2047,8 @@ Your cooperation is appreciated.
...
119 char VMware virtual network control
- 0 = /dev/vmnet0 1st virtual network
- 1 = /dev/vmnet1 2nd virtual network
+ 0 = /dev/vnet0 1st virtual network
+ 1 = /dev/vnet1 2nd virtual network
...
120-127 char LOCAL/EXPERIMENTAL USE
@@ -2450,7 +2418,7 @@ Your cooperation is appreciated.
2 = /dev/raw/raw2 Second raw I/O device
...
-163 char UNASSIGNED (was Radio Tech BIM-XXX-RS232 radio modem - see 51)
+163 char
164 char Chase Research AT/PCI-Fast serial card
0 = /dev/ttyCH0 AT/PCI-Fast board 0, port 0
@@ -2542,6 +2510,12 @@ Your cooperation is appreciated.
1 = /dev/clanvi1 Second cLAN adapter
...
+179 block MMC block devices
+ 0 = /dev/mmcblk0 First SD/MMC card
+ 1 = /dev/mmcblk0p1 First partition on first MMC card
+ 8 = /dev/mmcblk1 Second SD/MMC card
+ ...
+
179 char CCube DVXChip-based PCI products
0 = /dev/dvxirq0 First DVX device
1 = /dev/dvxirq1 Second DVX device
@@ -2560,6 +2534,9 @@ Your cooperation is appreciated.
96 = /dev/usb/hiddev0 1st USB HID device
...
111 = /dev/usb/hiddev15 16th USB HID device
+ 112 = /dev/usb/auer0 1st auerswald ISDN device
+ ...
+ 127 = /dev/usb/auer15 16th auerswald ISDN device
128 = /dev/usb/brlvgr0 First Braille Voyager device
...
131 = /dev/usb/brlvgr3 Fourth Braille Voyager device
@@ -2810,6 +2787,16 @@ Your cooperation is appreciated.
...
190 = /dev/ttyUL3 Xilinx uartlite - port 3
191 = /dev/xvc0 Xen virtual console - port 0
+ 192 = /dev/ttyPZ0 pmac_zilog - port 0
+ ...
+ 195 = /dev/ttyPZ3 pmac_zilog - port 3
+ 196 = /dev/ttyTX0 TX39/49 serial port 0
+ ...
+ 204 = /dev/ttyTX7 TX39/49 serial port 7
+ 205 = /dev/ttySC0 SC26xx serial port 0
+ 206 = /dev/ttySC1 SC26xx serial port 1
+ 207 = /dev/ttySC2 SC26xx serial port 2
+ 208 = /dev/ttySC3 SC26xx serial port 3
205 char Low-density serial ports (alternate device)
0 = /dev/culu0 Callout device for ttyLU0
@@ -3145,6 +3132,14 @@ Your cooperation is appreciated.
1 = /dev/blockrom1 Second ROM card's translation layer interface
...
+259 block Block Extended Major
+ Used dynamically to hold additional partition minor
+ numbers and allow large numbers of partitions per device
+
+259 char FPGA configuration interfaces
+ 0 = /dev/icap0 First Xilinx internal configuration
+ 1 = /dev/icap1 Second Xilinx internal configuration
+
260 char OSD (Object-based-device) SCSI Device
0 = /dev/osd0 First OSD Device
1 = /dev/osd1 Second OSD Device
--
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