root@borzoi:~# /etc/zaurusd/scripts/zaurus-mixer-callback Headset Off
root@borzoi:~#  cat /sys/devices/platform/soc-audio/dpm
Mono Out 1: Off
Out 3: Off
Right PGA Mux: Off
Left PGA Mux: On
Left ADC: Off
Right ADC: Off
Mic Bias: On
Left DAC: Off
Right DAC: Off
Left Out 1: Off
Right Out 1: On
Left Out 2: Off
Right Out 2: Off
Mono Mixer: Off
DAC Mute: Off
WM8750 Clock: Off
PM State: D3hot
root@borzoi:~# /etc/zaurusd/scripts/zaurus-mixer-callback Headset Off