Driver via ac97 sound problem (VT82C686B)

Driver via ac97 sound problem (VT82C686B)

Post by Raul Sanchez Sanche » Tue, 15 Jan 2002 06:30:13



Hi:

I have write the lines referenced to ad1886 in the patch that Salvador
Eduardo Tropea indicate me in next direction:

http://www.uwsg.iu.edu/hypermail/linux/kernel/0107.0/0389.html

ad1886 is recognized and the code of setup_ad1886 is executed, i have
put a printk in the function and i can see it.

The problem is that i can't hear any sound :( It's seem to be mute on

thanks

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Driver via ac97 sound problem (VT82C686B)

Post by Paul Loren » Wed, 16 Jan 2002 04:20:16


I also tried and neither worked for me, though I
appreciate the effort :)

I did get a couple of other messages, if this helps:

Assertion failed! chan->is_active ==
sg(chan->iobase),via82cxxx_audio.c,via_chan_maybe_start,line=1198

(typed by hand as I'm on another computer)

I got that using the eapd_init2_ops.

Note: the patch was missing prototypes for
eapd_on_control and eapd_off_control. Also my
sound chip is 0x41445361 not 0x41445461, so
I added that entry.

Paul


Quote:> hi
> i apply the patch and compile with the two values
> but i still heard no sound .
> Did someone got this driver works ?
> thx

> Le Lundi 14 Janvier 2002 18:13, salvador a crit :
> > As Alan says: "The VIA driver doesnt appear to
> support the ac97 ops."
> > Here I'm attaching a brut force test, I created a
> small function that turns
> > ON the EAPD and another to turn it OFF. Note that
> according to dataseets a
> > 1 will disable the external amplifier, but you
> should try with the two
> > values. I attached the modified code. It have a
> 1886 entry that will
> > initialize the codec setting EAPD output to 0. The
> code have a commented
> > entry that does the reverse, try both.
> > I also attached the diffs so Alan can check if
> that could work.
> > Note: I didn't compile it so watch for typos ;-)

> > SET

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> Lumbroso Jeremy
> 188 bd malesherbes
> 75017 PARIS
> 01,47,64,07,94
> 06,19,77,01,25
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