From mboxrd@z Thu Jan 1 00:00:00 1970 Message-Id: <200012081221.MAA24453@hyperion.valhalla.net> Date: Fri, 08 Dec 2000 11:56:32 +0000 Subject: Re: AW: Sound on an iBook? From: "Iain Sandoe" To: Michael Schmitz , "Halfmann, Klaus" CC: "'Christof Petig'" , linuxppc-dev@lists.linuxppc.org Mime-version: 1.0 Content-type: text/plain; charset="US-ASCII" Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: Hi All, (Michael, this might not make to you... because of the dreaded ORBS situation - which *still* hasn't been resolved after 4 months). >> > I got no answer on the debian-ppc list, so I'll try here. >> > >> > does anybody know a way to get the sound hardware on my iBook working? >> > Everything else is working fine. >> > >> >> The iBook has a different Hardware than all other Macs found so far. > [...] >> This issue needs a good assembler-/Forth- Programmer that must >> use MacsBug in MacOS or dissassemble the OF to find out whats >> going on there. I'd really like to do that but that is nothing >> I can do when going to work by train .... > > Christof could always resort to petitioning Apple to release the specs, or > digging though Darwin source code to discover the secret. There was a guy working on the iBook sound (which was why I'd left it alone for now). He said that it only took a couple of lines to get sound out... although I suspect you'll have to rely on whatever settings MacOS last left for it.... because... The "problem" is that the mixer abstraction needs a re-write to talk to the Micronas chip. I've been (very) out of circulation and will be until Xmas or so... but if I have a chance I'll see if I can find the relevant lines (IIRC it only involves detecting the iBook in init and dealing with the register assignments... but it's been a while since I looked). Iain. ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/