Bug 209274 - No hardware mixer control for iMac G5 8,2
Summary: No hardware mixer control for iMac G5 8,2
Status: New
Alias: None
Product: Base System
Classification: Unclassified
Component: kern (show other bugs)
Version: 10.2-RELEASE
Hardware: powerpc Any
: --- Affects Some People
Assignee: Justin Hibbits
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2016-05-05 00:34 UTC by Dan Sharoh
Modified: 2016-05-18 08:27 UTC (History)
1 user (show)

See Also:

Attachments
output from 'ofwdump -ap' (107.45 KB, text/plain)
2016-05-05 00:34 UTC, Dan Sharoh 		no flags Details
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Description Dan Sharoh 2016-05-05 00:34:05 UTC 
Created attachment 169975 [details]
output from 'ofwdump -ap'

This bug report follows a discussion on the FreeBSD/ppc mailing list seen at the bottom of this post: https://lists.freebsd.org/pipermail/freebsd-ppc/2016-May/008186.html


There is currently no driver to control the hardware mixer. The volume can only be controlled at the application level, i.e mplayer can control its own output volume, but there is no generic system-level volume. 

I run freeBSD 10.2 on an PPC iMac G5 8,2, and I attached the output of 'owfdump -ap'
Comment 1 Justin Hibbits freebsd_committer freebsd_triage 2016-05-10 02:02:38 UTC 
Looking at the Linux source, it appears the driver does exist, the PowerMac8,2 uses the "onyx" driver.  However, the Open Firmware device node doesn't exist.  I'll see if I can whip up a patch for you to try.  I don't have the hardware, so I'll need to rely on you for testing.
Comment 2 Dan Sharoh 2016-05-18 08:27:59 UTC 
Yup, I'm willing to help test. Whenever you get around to writing the patch, I'll try it out.