Re: ml403 ac97 driver

[Qin Lin <linkinge@gmail.com>]

hi Joachim

i have hearing the music . Thanks.   just use=20
#aplay music.wav=20

Before that i recompile the alsa-lib again. change configure options
later i will paste the whole  commands so as anybody can reference it .




Joachim F=C3=B6rster wrote:
>=20
> Hi Qin Lin,
>=20
> On Sun, 2007-07-29 at 22:40 -0700, Qin Lin wrote:
>> # insmod ac97_bus.ko
>> # insmod snd-ac97-codec.ko
>> # insmod ml403_ac97cr.ko
>> [   79.529114] ml403_ac97cr: remap controller memory region to 0xc500e00=
0
>> done
>> [   79.611803] ml403_ac97cr: request (playback) irq 7 done
>> [   79.674236] ml403_ac97cr: request (capture) irq 6 done
>> [   79.784291] snd-ml403_ac97cr: write access to codec register 0x26 wit=
h
>> bad value 0x800f / 32783!
>> [   79.900247] snd-ml403_ac97cr: write access to codec register 0x26 wit=
h
>> bad value 0xf / 15!
>> [   80.004284] snd-ml403_ac97cr: write access to codec register 0x2a wit=
h
>> bad value 0x2801 / 10241!
>> [   80.116228] snd-ml403_ac97cr: write access to codec register 0x2a wit=
h
>> bad value 0x3801 / 14337!
>=20
> Completely fine.
>=20
>> # ls -l /dev/snd
>> crw-rw-rw-    1 root     root     116,   0 Jan  1 00:01 controlC0
>> crw-rw-rw-    1 root     root     116,   4 Jan  1 00:01 hwC0D0
>> crw-rw-rw-    1 root     root     116,   5 Jan  1 00:01 hwC0D1
>> crw-rw-rw-    1 root     root     116,   6 Jan  1 00:01 hwC0D2
>> crw-rw-rw-    1 root     root     116,   7 Jan  1 00:01 hwC0D3
>> crw-rw-rw-    1 root     root     116,  24 Jan  1 00:01 pcmC0D0c
>> crw-rw-rw-    1 root     root     116,  16 Jan  1 00:01 pcmC0D0p
>> crw-rw-rw-    1 root     root     116,   1 Jan  1 00:01 seq
>> crw-rw-rw-    1 root     root     116,  33 Jan  1 00:01 timer
>=20
> Ok, should suffice. [In my case snddevices made many other device
> files.]
>=20
>> # aplay -D /dev/snd/pcmC0D0p
>> ALSA lib pcm.c:2144:(snd_pcm_open_noupdate) Unknown PCM /dev/snd/pcmC0D0=
p
>=20
> Well, I think the way you specify the device is wrong. AFAIK the -D
> option only accepts names which are defined in an ALSA configuration
> file (.asoundrc & friends).
> Furthermore: Did you try without any device (without -D option)? The
> defaults should make ALSA pick the first available sound device. At
> least, while I was testing, I didn't have to specify any device.
>=20
> BTW: You need to specify the (.wav) file you want to play:
> # aplay music.wav
> Otherwise you won't here anything ;-). Read "man aplay" !
>=20
>> # ./test_sound.out /dev/snd/pcmC0D0p=20
>> ALSA lib pcm.c:2090:(snd_pcm_open_noupdate) Unknown PCM /dev/snd/pcmC0D0=
p
>> cannot open audio device /dev/snd/pcmC0D0p (No such file or directory)
>=20
> Ditto. But I haven't had a look into test_sound source yet, but it might
> be the same issue.
>=20
>  Joachim
>=20
>=20
>=20
> _______________________________________________
> Linuxppc-embedded mailing list
> Linuxppc-embedded@ozlabs.org
> https://ozlabs.org/mailman/listinfo/linuxppc-embedded
>=20
>=20

--=20
View this message in context: http://www.nabble.com/Re%3A-ml403-ac97-driver=
-tf4164866.html#a11859770
Sent from the linuxppc-embedded mailing list archive at Nabble.com.