On 1 July 2012 17:04, Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote: > On Sun, 1 Jul 2012, Philipp Dreimann wrote: > >> I bisected it and found it in yet another area: usb audio (the webcam >> has a microphone too..) >> >> - 8fdff6a is the last revision where my webcam works >> >> - edcd363 does not compile >> sound/usb/stream.c:80:13: error: static declaration of >> ‘snd_usb_init_substream’ follows non-static declaration >> >> - d399ff9 is the first revision where my webcam is not working, and >> the following messages in the kernel log: >> 3:-1:3: cannot set freq 32000 to ep 0x86 >> uvcvideo: Failed to query (GET_DEF) UVC control 2 on unit 2: -71 (exp. 2). >> uvcvideo: Failed to set UVC probe control : -71 (exp. 26). > > If you revert the change in d399ff9, does the webcam then work? If it > does, you should write to the author of that commit and explain the > problem. I know that several fixes were recently added to the usbaudio > drivers. Reverting the patch does not seem to be very easy. At least a simple git revert is not sufficient. Unloading/blacklisting snd_usb_audio helps for now and I am in contact with the authors. -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
