diff options
| author | Ralf Baechle <ralf@linux-mips.org> | 2000-08-28 22:00:09 +0000 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2000-08-28 22:00:09 +0000 |
| commit | 1a1d77dd589de5a567fa95e36aa6999c704ceca4 (patch) | |
| tree | 141e31f89f18b9fe0831f31852e0435ceaccafc5 /Documentation/usb/proc_usb_info.txt | |
| parent | fb9c690a18b3d66925a65b17441c37fa14d4370b (diff) | |
Merge with 2.4.0-test7.
Diffstat (limited to 'Documentation/usb/proc_usb_info.txt')
| -rw-r--r-- | Documentation/usb/proc_usb_info.txt | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/Documentation/usb/proc_usb_info.txt b/Documentation/usb/proc_usb_info.txt index f3e629cbe..b8b0cbd4e 100644 --- a/Documentation/usb/proc_usb_info.txt +++ b/Documentation/usb/proc_usb_info.txt @@ -1,6 +1,6 @@ /proc/bus/usb filesystem output =============================== -(version 2000.03.24) +(version 2000.08.15) The /proc filesystem for USB devices generates @@ -10,6 +10,23 @@ The /proc filesystem for USB devices generates one per line, with each driver's USB minor dev node number range if applicable. +**NOTE**: If /proc/bus/usb appears empty, you need + to mount the filesystem, issue the command (as root): + + mount -t usbdevfs none /proc/bus/usb + + An alternative and more permanent method would be to add + + none /proc/bus/usb usbdevfs defaults 0 0 + + to /etc/fstab. This will mount usbdevfs at each reboot. + You can then issue `cat /proc/bus/usb/devices` to extract + USB device information. + +For more information on mounting the usbdevfs file system, see the +"USB Device Filesystem" section of the USB Guide. The latest copy +of the USB Guide can be found at http://www.linux-usb.org/ + In /proc/bus/usb/devices, each device's output has multiple lines of ASCII output. I made it ASCII instead of binary on purpose, so that someone |