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| author | Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> | 2007-08-24 12:19:22 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2007-10-12 23:55:21 +0200 |
| commit | 092a212e8e3eb49ab7360d652f457d0a360d5383 (patch) | |
| tree | de0baf729cdf30ef847e2cd03b408c67d3be1032 /Documentation/usb/usbmon.txt | |
| parent | usb-serial: show port number in sysfs (diff) | |
| download | linux-092a212e8e3eb49ab7360d652f457d0a360d5383.tar.xz linux-092a212e8e3eb49ab7360d652f457d0a360d5383.zip | |
USB: usbmon doc update - mention new wildcard ('0') bus
Update usbmon documentation, mentioning the "zero" (wildcard) bus.
Possibly, in my first hunk, the 'either ... or ...' should be rephrased a bit to
be expressed better.
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Cc: Pete Zaitcev <zaitcev@redhat.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'Documentation/usb/usbmon.txt')
| -rw-r--r-- | Documentation/usb/usbmon.txt | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/Documentation/usb/usbmon.txt b/Documentation/usb/usbmon.txt index 53ae866ae37b..2917ce4ffdc4 100644 --- a/Documentation/usb/usbmon.txt +++ b/Documentation/usb/usbmon.txt @@ -34,9 +34,12 @@ if usbmon is built into the kernel. Verify that bus sockets are present. # ls /sys/kernel/debug/usbmon -1s 1t 1u 2s 2t 2u 3s 3t 3u 4s 4t 4u +0s 0t 0u 1s 1t 1u 2s 2t 2u 3s 3t 3u 4s 4t 4u # +Now you can choose to either use the sockets numbered '0' (to capture packets on +all buses), and skip to step #3, or find the bus used by your device with step #2. + 2. Find which bus connects to the desired device Run "cat /proc/bus/usb/devices", and find the T-line which corresponds to @@ -56,6 +59,10 @@ Bus=03 means it's bus 3. # cat /sys/kernel/debug/usbmon/3u > /tmp/1.mon.out +to listen on a single bus, otherwise, to listen on all buses, type: + +# cat /sys/kernel/debug/usbmon/0u > /tmp/1.mon.out + This process will be reading until killed. Naturally, the output can be redirected to a desirable location. This is preferred, because it is going to be quite long. |