lkml.org 
[lkml]   [2012]   [Jan]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    Date
    From
    Subject[09/20] USB: update documentation for usbmon
    2.6.32-longterm review patch.  If anyone has any objections, please let me know.

    ------------------
    From: Alan Stern <stern@rowland.harvard.edu>

    commit d8cae98cddd286e38db1724dda1b0e7b467f9237 upstream.

    The documentation for usbmon is out of date; the usbfs "devices" file
    now exists in /sys/kernel/debug/usb rather than /proc/bus/usb. This
    patch (as1505) updates the documentation accordingly, and also
    mentions that the necessary information can be found by running lsusb.

    Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
    CC: Pete Zaitcev <zaitcev@redhat.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

    ---
    Documentation/usb/usbmon.txt | 14 +++++++++-----
    1 file changed, 9 insertions(+), 5 deletions(-)
    --- a/Documentation/usb/usbmon.txt
    +++ b/Documentation/usb/usbmon.txt
    @@ -43,10 +43,11 @@ This allows to filter away annoying devi

    2. Find which bus connects to the desired device

    -Run "cat /proc/bus/usb/devices", and find the T-line which corresponds to
    -the device. Usually you do it by looking for the vendor string. If you have
    -many similar devices, unplug one and compare two /proc/bus/usb/devices outputs.
    -The T-line will have a bus number. Example:
    +Run "cat /sys/kernel/debug/usb/devices", and find the T-line which corresponds
    +to the device. Usually you do it by looking for the vendor string. If you have
    +many similar devices, unplug one and compare the two
    +/sys/kernel/debug/usb/devices outputs. The T-line will have a bus number.
    +Example:

    T: Bus=03 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 2 Spd=12 MxCh= 0
    D: Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
    @@ -54,7 +55,10 @@ P: Vendor=0557 ProdID=2004 Rev= 1.00
    S: Manufacturer=ATEN
    S: Product=UC100KM V2.00

    -Bus=03 means it's bus 3.
    +"Bus=03" means it's bus 3. Alternatively, you can look at the output from
    +"lsusb" and get the bus number from the appropriate line. Example:
    +
    +Bus 003 Device 002: ID 0557:2004 ATEN UC100KM V2.00

    3. Start 'cat'




    \
     
     \ /
      Last update: 2012-01-10 21:17    [from the cache]
    ©2003-2011 Jasper Spaans