[YggdrasiI]

Hello,

I would give some feedback about the new alsa support. Sorry for my english. Results was made with both versions
OpenELEC (Milhouse) Version: devel-20140221233032-r17780-ge46e3ad and
OpenELEC (Milhouse) Version: devel-20140202053003-r17587-g0c71539


aplay -l returns

Code:

**** List of PLAYBACK Hardware Devices ****
card 0: ALSA [bcm2835 ALSA], device 0: bcm2835 ALSA [bcm2835 ALSA]
  Subdevices: 8/8
  Subdevice #0: subdevice #0
  Subdevice #1: subdevice #1
  Subdevice #2: subdevice #2
  Subdevice #3: subdevice #3
  Subdevice #4: subdevice #4
  Subdevice #5: subdevice #5
  Subdevice #6: subdevice #6
  Subdevice #7: subdevice #7
card 1: Device [Generic USB Audio Device], device 0: USB Audio [USB Audio]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

Output of amixer:

Code:

amixer -c 0 scontents
Simple mixer control 'PCM',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback -10239 - 400
  Mono: Playback 400 [100%] [4.00dB] [on]


amixer -c 1 scontents
Simple mixer control 'PCM',0
  Capabilities: pvolume pswitch pswitch-joined
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 151
  Mono:
  Front Left: Playback 150 [99%] [-0.25dB] [on]
  Front Right: Playback 150 [99%] [-0.25dB] [on]
Simple mixer control 'Mic',0
  Capabilities: cvolume cvolume-joined cswitch cswitch-joined
  Capture channels: Mono
  Limits: Capture 0 - 16
  Mono: Capture 0 [0%] [0.00dB] [on]
Simple mixer control 'Auto Gain Control',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]

The second one is an cheap usb audio card ( 0d8c:000e C-Media Electronics, Inc. Audio Adapter (Planet UP-100, Genius G-Talk )

1 The Alsa support for the usb card works in 2 of 3 cases:
1.1 Via command line (i.e aplay --rate=16000 --channels=1 --format=S16_LE -Dplughw:1,0 ): works
1.2. Select Alsa card in XBMC menu and play files with dvdplayer: works
1.3. Select Alsa card in XBMC, but use omxplayer: doesn't works. (I assume the broadcom hw decoder output cant be route to the usb card)

2 The Alsa support for [bcm2835 ALSA] do not work. There is no error message, but all three above cases
leads to a mute output. Did I forget something, i. e. has to disable the "Non-Alsa sound module"?


Regards Yggdrasil