RFC: massive snd_hda driver update to better conform UAA specification

Angel Arancibia angel.arancibia at gmail.com
Wed Aug 13 15:23:57 UTC 2008

2008/8/13 Angel Arancibia <angel.arancibia at gmail.com>:
> 2008/8/12 Alexander Motin <mav at freebsd.org>:
>> Hi.
>> I have made major snd_hda driver rewrite. I will be grateful for reviews and
>> any positive or negative feedbacks.
>> Here is my patches: http://people.freebsd.org/~mav/
>> For 8-CURRENT use:
>> http://people.freebsd.org/~mav/hda.20080812.patch
>> For 7-STABLE try (I have no place to test it, but it builds):
>> http://people.freebsd.org/~mav/hda.7.20080812.patch

Now it's apply successfully. But still have sound only through one
headphone (I have 2 jacks for headphones).

The original post is here :


$> dmesg | tail
hdac0: <Intel 82801H High Definition Audio Controller> mem
0xfe9fc000-0xfe9fffff irq 21 at device 27.0 on pci0
hdac0: [ITHREAD]
hdac0: <HDA Driver Revision: 20080812_0000>
hdac0: <HDA Codec #0: Sigmatel (Unknown)>
hdac0: <HDA Codec #1: Conexant (Unknown)>
pcm0: <HDA codec Sigmatel (Unknown) PCM #0> on hdac0
pcm1: <HDA codec Sigmatel (Unknown) PCM #1> on hdac0
pcm2: <HDA codec Sigmatel (Unknown) PCM #2> on hdac0

Any idea?


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