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When I try to change default sound card in alsamixer to USB PS3 Eye camera (which is detected as USB Camera-B4.04.27.1), I'm getting following error:

cannot load mixer controls: Invalid argument

I can record and play back sounds (using arecord and aplay commands), but the volume is very low. I would like to increase the volume of the mic, but I can't because of the above error.

Any help is appreciated.

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