On 09/24/2013 05:52 PM, Daniel Mack wrote: > Hi Sarah, > > On 24.09.2013 01:41, Sarah Sharp wrote: >> The snd-usb-audio driver no longer loads properly on 3.12-rc2 when I >> plug in my USB headset. It worked fine on 3.11-rc4 (not sure about >> vanilla 3.11). >> >> Trying to manually load the driver fails: >> >> sarah@xanatos:~$ sudo modprobe snd-usb-audio >> FATAL: Error inserting snd_usb_audio >> (/lib/modules/3.12.0-rc2/kernel/sound/usb/snd-usb-audio.ko): Invalid argument >> >> dmesg shows: >> >> [ 44.231668] snd_usb_audio: `-2' invalid for parameter `index' > > That's really strange. I just tested on an ARM board where I currently > run 3.12-rc2 as well, and I can load the module without problems. Also, > sound/usb/card.c (where the params are declared) hasn't seen an update > in 3.12. > > I suspect your OS is passing "index=-2" from something like > /etc/modprobe.d/* or cmdline settings. Could you investigate in that > direction? Ubuntu has passed options snd-usb-audio index=-2 ...since ages. It is, AFAIK, a very valid way of trying to make "some other card" be card 0. This is because card 0 is the default in some apps which are not using PulseAudio, so it's mostly there for historical reasons. -- David Henningsson, Canonical Ltd. https://launchpad.net/~diwic -- 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
