On Wed, 9 Jun 2004, Dhanesh D Pai wrote: > hi all,
Hi Dhanesh and others, I recently asked this question too. Alan Stern told me that I'm probably not the first person who needs it, but no one has ever submited any code. I started to write an "URB Monitor" but it only fits my needs (only bulk, ctrl, intr data is dumped). I'm very new to kernel development. For me it was the easiest way to use proc-fs. My URB monitor creates a proc entry (in /proc/urb_monitor) for each connected device. The monitor can be activated by echo "1" > /proc/urb_monitor/<device> and deactivated by echoing "0" to it. When activated cat /proc/urb_monitor/<device> gets the traffic transferred since the last cat or since activation. Unfortunately, high traffic kills the system (at least for me, when using vmware, which is unstable as well, even not using usb). I would prefer to write the traffic directly to a file is userspace, but due the lack of knowledge, I wasn't able to this yet. If someone wants to have a look, I applied a patch as attachment, but remember, it is probably very very unstable. Should work for 2.6.6. I appreciate proposals, how such a monitor can be implemented more efficient and more stable. best regards, Patrick
linux-2.6.6-patch-usb_urb_monitor.diff.bz2
Description: BZip2 compressed data
