Hello!

I wrote a simple script "sco_features.pl" which show all supported
codecs by local HCI bluetooth adapter. Script is available at:

https://github.com/pali/hsphfpd-prototype/blob/prototype/sco_features.pl

And I found out that OCF_READ_LOCAL_CODECS HCI command cannot be send by
non-root user. Kernel returns "Operation not permitted" error.

What is reason that kernel blocks OCF_READ_LOCAL_CODECS command for
non-root users? Without it (audio) application does not know which
codecs local bluetooth adapter supports.

E.g. OCF_READ_LOCAL_EXT_FEATURES or OCF_READ_VOICE_SETTING commands can
be send also by non-root user and kernel does not block them.

-- 
Pali Rohár
pali.rohar@gmail.com