Hi Rods, On Wed, Feb 2, 2011 at 1:08 PM, Rods Bobavich <[email protected]> wrote: > I was looking at the wrong urb.c file. The correct one is > linux-kernel/sound/usb/urb.c > Actually the KERN_ERR is on 138 for my version triggers as line 146... > On line 460 is the second KERN_ERR. > This is all in a function called retire_capture_urb()
Which kernel? > It appears that there is a commented continue that would drastically change > the for-loop this one is in. I wonder... Could this be the offending line? > If I'm reading the code correctly it appears to be some sort of locking > mechanism check while retiring the urb from use to make sure it is retired > when it is no longer active. Without the continue the urb will still be > retired. Perhaps this is causing something unstable? > Clemens might know more about this. I'm not that familiar with kernel code. Shooting from the hip (and also digging in 2.6.26.5 sources)... looks like there was a timeout when calling usb_set_interface() (drivers/usb/core/message.c). The urb transfers look like they stalled rather than failed to allocate bandwidth. That makes me think there's a bad cable, bad USB controller, bad USB controller /driver/, bad format request, bad device, or something like that. -gabriel _______________________________________________ Linux-audio-dev mailing list [email protected] http://lists.linuxaudio.org/listinfo/linux-audio-dev
