Hello!

Now I'm looking at BT_VOICE_TRANSPARENT definition which comes from file
include/net/bluetooth/bluetooth.h and it has value 0x0003. It is really
correct? Because it means following format:

  Linear Coding, 8-bit without padding bits, 1's complement

I think that usage of 1's complement is not easy as there is no C type
which matches it. Should not it be 2's complement or rather Unsigned
type?

Seems that main usage of BT_VOICE_TRANSPARENT is mSBC codec and I doubt
that it uses 1's complement signed format (specially as it should be
modification of SBC codec which encode bytes as unsigned type).

There is another define BT_VOICE_CVSD_16BIT with value 0x0060 which
seems to be correct as it means Linear Coding, 16-bit without padding
bits, 2's complement and encoded by CVSD codec.

-- 
Pali Rohár
pali.rohar@gmail.com