These tools exist only to help debug audio on the droid 4, to improve call audio
and the driver in general.

BE VERY VERY CAREFUL IN HOW YOU USE THIS AND MAKE SURE THAT YOU KNOW WHAT YOU
ARE DOING

Usage:

python3 regtool.py dump > /tmp/audio-state.txt
python3 regtool.py info | less
python3 regtool.py cmp /tmp/audio-state-1.txt /tmp/audio-state-2.txt
python3 regtool.py restore /tmp/audio_state.txt
python regtool.py get CPCAP_REG_VAUDIOC.CPCAP_BIT_VAUDIO_MODE1
python regtool.py set CPCAP_REG_VAUDIOC.CPCAP_BIT_VAUDIO_MODE1 1