Sven, Thanks for the additional info. Some notes below.
On Fri, Sep 16, 2005 at 04:18:02PM +0200, Sven Henkel wrote: > Hi! > > Being a mac-owner for only 48 hours now, I don't really understand too much > of > the hardware-side of my iBook. So, I might be misunderstanding some of your > questions, but I'll try and give my best in answering them. :-) > > > 1. Was your model detected as a snapper before your fix? > > No, it was detected as an awacs-card. That's also what hwinfo tells me. > > > You can also > > check the "compatible" file in the open firmware 'sound' directory. > > /proc/device-tree/[EMAIL PROTECTED]/[EMAIL PROTECTED]/[EMAIL > PROTECTED]/[EMAIL PROTECTED]/sound# cat > compatible > AOAbase > > This doesn't really mean anything to me. > > > 2. Can you send a listing of the open firmware 'sound' directory? It would > > be interesting to see if there are any new files here. > > Sure, here it is: > > /proc/device-tree/[EMAIL PROTECTED]/[EMAIL PROTECTED]/[EMAIL > PROTECTED]/[EMAIL PROTECTED]/sound# ls -la > total 8 > dr-xr-xr-x 2 root root 0 Sep 16 15:47 . > dr-xr-xr-x 3 root root 0 Sep 16 15:47 .. > -r--r--r-- 1 root root 0 Sep 16 15:57 built-in > -r--r--r-- 1 root root 8 Sep 16 15:57 compatible > -r--r--r-- 1 root root 10 Sep 16 15:57 device_type > -r--r--r-- 1 root root 4 Sep 16 15:57 layout-id > -r--r--r-- 1 root root 4 Sep 16 15:57 linux,phandle > -r--r--r-- 1 root root 6 Sep 16 15:57 name > -r--r--r-- 1 root root 4 Sep 16 15:57 object-model-version > -r--r--r-- 1 root root 4 Sep 16 15:57 platform-tas-codec-ref > -r--r--r-- 1 root root 4 Sep 16 15:57 vendor-id > > > Output of 'od -x sample-rates' would also be usefull. > > Sorry, I don't have that file. Thats is usefull to know as well. It does mean you're restricted to 44.1KHz now. > > Maybe others as well, > > not sure now. > > Okay, here we go: > > od -x layout-id > 0000000 0000 0050 > 0000004 > > od -x linux,phandle > 0000000 ff98 5200 > 0000004 > > od -x platform-tas-codec-ref > 0000000 ff98 cdd8 > 0000004 This tells me is that you definitely have a TAS chipset in there. Don't know what extact version it is though. > od -x vendor-id > 0000000 0000 106b > 0000004 Apple > cat device_type > soundchip > > cat name > sound > > > 3. To get this into the kernel please post the fix to > > alsa-devel@lists.sourceforge.net > > with a signed-off line and explanation what model chip this is, or at > > least the /proc/cpuinfo output. Read Documentation/SubmittingPatches for > > more info. I can forward it as well, if you get the info and sign it off. > > Well, I don't really have a clue why that patch works, so I don't like to > submit it to mainline before I have some deeper understanding of what I > actually did... ;-) So, I will submit it as soon as someone with more > knowledge of apple's sound-hardware confirms that the patch looks reasonable. Basically your patch identifies your sound chip as the TAS3004, usually called Snapper by Apple. I can't say if this is the precise chip you have. You could also be having a later model which behaves compatible (so far) with the TAS3004. Either way, the TAS3004 code is the most advanced chip in the powermac code. I would not have recommended submitting the patch if I did not think it looked okay... -- Martin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
