hi, in stb's with sh4 arch, i can make the sound louder with
/usr/bin/amixer -c 1 set Analog playback '60%' unmute &
/usr/bin/amixer -c 1 set SPDIF playback '60%' unmute &
/usr/bin/amixer -c 1 set HDMI playback '60%' unmute &
this encrase the base volume, not the e2 volume.....
but here with mips, it says, there is no card?