From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Wed, 10 Jan 2001 14:29:47 +0000 Subject: Re: ibook sound, limping mixer From: "Iain Sandoe" To: Christof Petig , Conrad H Ziesler , linuxppc-dev@lists.linuxppc.org Mime-version: 1.0 Content-type: text/plain; charset="US-ASCII" Message-Id: <20010110143207.0568BDB9FD@atlas.valhalla.net> Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: on Wed, Jan 10, 2001, Christof Petig wrote: > Conrad H Ziesler wrote: >> in case this is of any use to anyone: > Yes, I'm very interested. Since I actually started looking into the > specs and sources, but did not find the time to start coding the same. so am I (of course). I've taken a copy over to my devl area - and I will figure out how to include it into the next stage of dmasound devl soon. >> since the dac3550a has write-only i2c registers, its pretty hard to debug >> the i2c interface. probably if someone puts an oscilloscope probe on the >> i2c bus signals it should all become clear. >> > I would recommend a logic analyzer or better an i2c analyzer. I have an > oscilloscope but I would not dare to try reading i2c signals by hand. well, I have a storage scope (which would possibly do it) [I don't run to a logic analyser] - but more fundamental problem - no iBook - if someone in the UK (unless someone from elsewhere is prepared to ship one) wants to lend one - I'll see what I can do... it's not a machine I can justify buying at the moment. [my test set is G3/Beige, Lombard, 9600/233, and, when I get the disk re-partitioned G4/500]. ciao, Iain. ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/