I did every step of test, but after testing the /tmp/mon.out file is
0byte (empty)
next task?
2012-01-28 08:12 keltezéssel, Jonathan Nieder írta:
zitev wrote:
I attached the lsusb output!
Perfect, thanks.
Bus 001 Device 004: ID 1044:7a02 Chu Yuen Enterprise Co., Ltd
[...]
bNumInterfaces 3
[...]
Interface Descriptor:
bInterfaceClass 3 Human Interface Device
iInterface 2 KB
[...]
Interface Descriptor:
bInterfaceClass 3 Human Interface Device
iInterface 3 Mouse
[...]
Interface Descriptor:
bInterfaceClass 3 Human Interface Device
iInterface 4 K8100 Interface
Can you set up usbmon and get a trace of e.g., pressing, holding,
then releasing the "a" key? See Documentation/usb/usbmon.txt
in the Linux source or the doc directory of the linux-doc-3.2
package for details.
It works roughly like this:
1. Mount debugfs and load the usbmon module:
mount -t debugfs debugfs /sys/kernel/debug
modprobe usbmon
2. Start tracing:
{
sleep 1; # one second of quiet
cat /sys/kernel/debug/usb/usbmon/1u>/tmp/mon.out&
sleep 20; # twenty seconds or so to run the test
kill $!; # and then stop collecting data
}
3. Somehow summarize the output. If it is fairly small, an
attachment is fine; otherwise, excerpts and maybe a link to a
copy that can be downloaded online might work.
Hope that helps,
Jonathan
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