init.qcom.usb.rc: set uac sync support for capture
Current f_uac2 USB OUT (aka 'capture') synchronization
implements 'ASYNC' scenario which means USB Gadget has
it's own freerunning clock and can update Host about
real clock frequency through feedback endpoint so Host
can align number of samples sent to the USB gadget to
prevent overruns/underruns
In case if Gadget can has no it's internal clock and
can consume audio samples at any rate (for example,
on the Gadget side someone records audio directly to
a file, or audio samples are played through an
external DAC as soon as they arrive), UAC2 spec
suggests 'ADAPTIVE' synchronization type.
Set default synchronization type to 'adaptive'.
Set the file permission of c_status and p_status to system.
Change-Id: Ifd1d412bdd5946236af2b9ce13328108509da230
2 files changed