Hi there, I'm working on a 16 channel XMOS based USB sound card. It's working just fine, except that in alsamixer, the first 8 channels are mapped to: ch 0 -> front left ch 1 -> front right ch 2 -> rear left ch 3 -> rear right ch 4 -> center ch 5 -> woofer ch 6 -> side left ch 7 -> side right And channels 8 though 15 simply don't show up in the mixer. When I do amixer, I get: # amixer Simple mixer control 'XMOS Clock Selector',0 Capabilities: pvolume cvolume pswitch cswitch Playback channels: Front Left - Front Right - Rear Left - Rear Right - Front Center - Woofer - Side Left - Side Right - Rear Center - ? - ? - ? - ? - ? - ? - ? Capture channels: Front Left - Front Right - Rear Left - Rear Right - Front Center - Woofer - Side Left - Side Right - Rear Center - ? - ? - ? - ? - ? - ? - ? Limits: Playback 0 - 127 Capture 0 - 127 Front Left: Playback 127 [100%] [0.00dB] [on] Capture 127 [100%] [0.00dB] [on] Front Right: Playback 127 [100%] [0.00dB] [on] Capture 127 [100%] [0.00dB] [on] Rear Left: Playback 127 [100%] [0.00dB] [on] Capture 127 [100%] [0.00dB] [on] Rear Right: Playback 127 [100%] [0.00dB] [on] Capture 127 [100%] [0.00dB] [on] Front Center: Playback 127 [100%] [0.00dB] [on] Capture 127 [100%] [0.00dB] [on] Woofer: Playback 127 [100%] [0.00dB] [on] Capture 127 [100%] [0.00dB] [on] Side Left: Playback 127 [100%] [0.00dB] [on] Capture 127 [100%] [0.00dB] [on] Side Right: Playback 127 [100%] [0.00dB] [on] Capture 127 [100%] [0.00dB] [on] Rear Center: Playback 127 [100%] [0.00dB] [on] Capture 127 [100%] [0.00dB] [on] ?: Playback 127 [100%] [0.00dB] [on] Capture 127 [100%] [0.00dB] [on] ?: Playback 127 [100%] [0.00dB] [on] Capture 127 [100%] [0.00dB] [on] ?: Playback 127 [100%] [0.00dB] [on] Capture 127 [100%] [0.00dB] [on] ?: Playback 127 [100%] [0.00dB] [on] Capture 127 [100%] [0.00dB] [on] ?: Playback 127 [100%] [0.00dB] [on] Capture 127 [100%] [0.00dB] [on] ?: Playback 127 [100%] [0.00dB] [on] Capture 127 [100%] [0.00dB] [on] ?: Playback 127 [100%] [0.00dB] [on] Capture 127 [100%] [0.00dB] [on] Simple mixer control 'XMOS Clock Selector',1 Capabilities: pvolume pvolume-joined cvolume cvolume-joined pswitch pswitch-joined cswitch cswitch-joined Playback channels: Mono Capture channels: Mono Limits: Playback 0 - 127 Capture 0 - 127 Mono: Playback 127 [100%] [0.00dB] [on] Capture 127 [100%] [0.00dB] [on] which shows that all 16 controls are there, but only the first 8 have names, and the rest are named , "?" (question mark) How do I get alsamixer to recognize all the controls & channels and map them simply to names like: ch0, ch1, ch2, ch3, ... ch14, ch15 ? that is, I'd prefer simple channels, no bonded pairs, and all 16 channels ennumerated out in alsamixer. I know the solution resides in .asoundrc configuration, but the solution eludes me. Thanks, -Caleb ------------------------------------------------------------------------------ Find and fix application performance issues faster with Applications Manager Applications Manager provides deep performance insights into multiple tiers of your business applications. It resolves application problems quickly and reduces your MTTR. Get your free trial! https://ad.doubleclick.net/ddm/clk/302982198;130105516;z _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user