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Commit f0cc82a8 authored by Rogério Brito's avatar Rogério Brito Committed by Greg Kroah-Hartman
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USB: fix paths in usbmon documentation 



Hi there.

On Aug 21 2009, Alan Stern wrote:
> On Thu, 20 Aug 2009, Rogério Brito wrote:
> > Again, just reiterating, what I said before, even though I am not sure
> > if I can reproduce it, I will try to.
> 
> A usbmon trace showing what happens when you plug in the drive and 
> when you run smartctl would help.

The documentation for usbmon in the kernel 2.6.31-rc7 kernel doesn't
match what the kernel exposes in the debug fs tree. This patch fixes it.

Signed-off-by: default avatarRogério Brito <rbrito@ime.usp.br>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent d77282c8

Documentation/usb/usbmon.txt

+3 −3
Original line number Diff line number Diff line
@@ -33,7 +33,7 @@ if usbmon is built into the kernel. 


Verify that bus sockets are present.



# ls /sys/kernel/debug/usbmon

# ls /sys/kernel/debug/usb/usbmon

0s  0u  1s  1t  1u  2s  2t  2u  3s  3t  3u  4s  4t  4u

#
@@ -58,11 +58,11 @@ Bus=03 means it's bus 3. 


3. Start 'cat'



# cat /sys/kernel/debug/usbmon/3u > /tmp/1.mon.out

# cat /sys/kernel/debug/usb/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

# cat /sys/kernel/debug/usb/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