quoted

Just wanted to tell that after putting earphones to the Mac, the sound
comes. Appearently it is only the internal speaker which does not work.

Just for the record:

My Pismo shows the same behaviour, the 'compatible' file in /proc/device-tree
says 'screamerawacs'.

I'm not completely sure, but some of these machines have the sound output
routed to an external I2C "SRS"/ampilfier module that drives the
speakers. We have code to set it up via Cuda on older machines, but not
for newer Core99 machines.

An interesting note also: When using this external module, Darwin driver
"fix" the AWACS volume to a constant value and uses the amplifier volume
control via I2C.

Ben.


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