As fahr as I understand your output above alsa has no Profile to assign
the channels of the cam, so it tests diferent Profiles but fails.
I tryed following:
# cat /proc/asound/cards
0 [NVidia ]: HDA-Intel - HDA NVidia
HDA NVidia at 0xfae78000 irq 22
1 [CameraB409241 ]: USB-Audio - USB Camera-B4.09.24.1
OmniVision Technologies, Inc. USB Camera-B4.09.24.1 at usb
# alsactl init
Found hardware: "HDA-Intel" "Nvidia MCP79/7A HDMI"
"HDA:11060441,18492520,00100100 HDA:10de0007,10de0101,00100100" "0x1849"
"0x2520"
# alsactl init 1
Found hardware: "USB-Audio" "USB Mixer" "USB1415:2000" "" ""
Hardware is initialized using a generic method
I think the last sentence proves my idea about the missing Profile.
Maybe the assignmend of the Channels could be fixed with the .asoundrc file?
http://alsa.opensrc.org/.asoundrc
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https://bugs.launchpad.net/bugs/886449
Title:
[USB-Audio - USB Camera-B4.04.27.1, recording] Pulseaudio fails to
detect card
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