Hey,
I recently bought some cheap USB soundcards for a computer that doesn't have any audio output other than through the HDMI output, and the screen I'm attaching doesn't have an audio output.
So I'm looking to plug in 2 of those USB soundcards, and switch between them depending on whether I'm using headphones, or want to use the standalone speaker.
Obviously, it would be so much nicer if I didn't have to switch between the outputs by hand, and ignored the "headphones" sound card when not plugged in.
My questions are: - does the USB audio driver support jack sensing? - is this something standard that's just not implemented yet? In which case, I'd be up for at least trying, given specs. - or is it something that depends on the device, and in which case, how would I find out?
Some details about the device itself below.
Cheers
/proc/asound/cards: 4 [Device ]: USB-Audio - USB Audio Device GeneralPlus USB Audio Device at usb-0000:00:14.0-9, full speed
$ amixer -c 4 Simple mixer control 'Speaker',0 Capabilities: pvolume pswitch pswitch-joined Playback channels: Front Left - Front Right Limits: Playback 0 - 30 Mono: Front Left: Playback 16 [53%] [-21.00dB] [on] Front Right: Playback 16 [53%] [-21.00dB] [on] Simple mixer control 'Mic',0 Capabilities: pvolume pvolume-joined cvolume cvolume-joined pswitch pswitch-joined cswitch cswitch-joined Playback channels: Mono Capture channels: Mono Limits: Playback 0 - 14 Capture 0 - 30 Mono: Playback 1 [7%] [-10.50dB] [off] Capture 26 [87%] [27.00dB] [on] Simple mixer control 'Auto Gain Control',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [off]