From mboxrd@z Thu Jan 1 00:00:00 1970 From: Benjamin Herrenschmidt To: , Subject: Re: sound again [was: Re: xf4 bug report] Date: Wed, 26 Jul 2000 13:09:23 +0200 Message-Id: <20000726110923.9381@mailhost.mipsys.com> In-Reply-To: <397EB684.592827BD@relog.ch> References: <397EB684.592827BD@relog.ch> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: >> 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. ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/