On Mon, 29 Apr 2002, Wayne Whitney wrote:
q> Hello,
>
> I'm running kernel 2.5.10-dj1, and I was hoping to run Quake 3 Arena 1.31
> on my Sis 7012 audio hardware (Sis 735 chipset) using the snd-intel8x0
> ALSA driver and the ALSA OSS emulation. When I try to run quake3, it
> reports:
>
> Could not mmap dma buffer PROT_WRITE|PROT_READ
> trying mmap PROT_WRITE (with associated better compatibility / less performance code)
> /dev/dsp: Input/output error
> Could not mmap /dev/dsp
>
> My understanding is that if the underlying ALSA driver supports mmap(),
> then the ALSA OSS emulation layer should handle it. And I believe the
> i810/sis7012 hardware supports mmap(), as the OSS i810_audio driver
> provides it. In fact, quake3 audio works (for a little while only!) using
> the OSS i810_audio driver.
>
> Any thought on how to make this work using ALSA and ALSA OSS emulation? I
> searched with google and on the list archives to no avail. Here's the
> kernel messages from loading the ALSA i810 driver:
>
> Intel 810 + AC97 Audio, version 0.21, 10:08:35 Apr 28 2002
> i810: SiS 7012 found at IO 0xd800 and 0xdc00, IRQ 11
> i810_audio: Audio Controller supports 2 channels.
> ac97_codec: AC97 Audio codec, id: 0x414c:0x4326 (Unknown)
> i810_audio: only 48Khz playback available.
> i810_audio: AC'97 codec 0 supports AMAP, total channels = 2
These messages are not from the ALSA driver but from OSS code which we
don't support at all.
Jaroslav
-----
Jaroslav Kysela <[EMAIL PROTECTED]>
Linux Kernel Sound Maintainer
ALSA Project http://www.alsa-project.org
SuSE Linux http://www.suse.com
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