[pulseaudio-discuss] [PATCH] Added support for Creative SoundBlaster Omni Surround 5.1 USB sound card. Mic and Line in inputs were not working at all.

Nazar Mokrynskyi nazar at mokrynskyi.com
Wed Jun 3 19:37:56 PDT 2015

> Seem missing direction = output in analog-stereo 
Added to config, do not see those messages anymore (new verbose log: 
> Seem no individual channel volume control
> Do this mean the balance slider in sound preference is useless ?
> Usually those multichannel usb audio devices have this type of volume 
> control which is not supported by pulseaudio
If you mean Left/Right, LFE and Front/Rear - all work fine in 5.1 mode.
> I: [pulseaudio] (alsa-lib)pcm_hw.c: Invalid PCM state for chmap_get: OPEN
> I: [pulseaudio] (alsa-lib)pcm_hw.c: SNDRV_PCM_IOCTL_HW_PARAMS failed (-5)
> http://git.alsa-project.org/?p=alsa-lib.git;a=blob;f=test/chmap.c;hb=HEAD
> Do snd-usb-audio provide channel map ?
> http://cgit.freedesktop.org/pulseaudio/pulseaudio/log/?qt=grep&q=lfe-filter
> http://git.alsa-project.org/?p=alsa-lib.git;a=blob;f=src/conf/cards/USB-Audio.conf;hb=HEAD
Sorry, but I do not understand what you want here.
> Do the red light in the optical spdif alway turn on ?
> Do the red light turn on when pulseaudio probe the devices ?
Yes, always lights red.

Sincerely, Nazar Mokrynskyi
Skype: nazar-pc
Diaspora:nazarpc at diaspora.mokrynskyi.com
Tox: A9D95C9AA5F7A3ED75D83D0292E22ACE84BA40E912185939414475AF28FD2B2A5C8EF5261249

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