I run mplayer on the devkit8000 board, with angstrom file system.
kernel : 2.6.28-rc9-omap1
If I run 'mplayer -slave -quiet ybw.mp3', I can hear the sound from a-
output.
If I send the command 'mute', it shows
[AO_ALSA] Unable to find simple control 'PCM',0.
[AO_ALSA] Unable to find simple control 'PCM',0.
Mute: enabled
There is no sound. Then I typed 'mute 0', It shows 'Mute: disabled',
but there is no sound anymore.
If I send the command 'volume -1' or 'volume +1', there won't be sound
any more. And it shows:
[AO_ALSA] Unable to find simple control 'PCM',0.
[AO_ALSA] Unable to find simple control 'PCM',0.
[Mixer] No hardware mixing, inserting volume filter.
Volume: 0 %
I have tried '-softvol' or '-af volume=-10:0'... with no help.
It seems that I cannot set the volume at the start...
Anyone can help me?
Maybe I could use the /dec/i2c* to control the twl4030 chip(tps65930)
registers to change the volume, but I don't like doing that....