Hello Takashi,
On Thu, Sep 07, 2006 at 12:33:18PM +0200, Takashi Iwai wrote:
> Yes. Then we need to take the controls back to a single one.
> Will do later.
Ok.
> I still wonder whether this is also true for AK4524...
No idea about this, I do not have an AK4524 so I cannot test.
> > > Also, it's possible that I did make a silly mistake. Put a debug
> > > printk around ak->ops.write() in snd_akm4xxx_write() to check what
> > > values are written to register 4 and 5.
> >
> > I will try this in the evening.
This sounded more fun than the simulation I am supposed to do for work,
so I sneaked away and did this first ;-)
I used the following printk:
======================================================================
--- ak4xxx-adda.c~ 2006-08-31 01:00:11.000000000 +0100
+++ ak4xxx-adda.c 2006-09-07 11:49:57.394999424 +0100
@@ -40,6 +40,9 @@
unsigned char val)
{
ak->ops.lock(ak, chip);
+ if (ak->type == SND_AK5365 && (reg==4 || reg==5)) {
+ printk (KERN_INFO "reg%d <- %02x\n", reg, val);
+ }
ak->ops.write(ak, chip, reg, val);
/* save the data */
======================================================================
Results from my second test (s2.sh vs s3.sh):
s2.sh: The commands
amixer set "PCM Capture Gain" 0
amixer set "PCM Capture Gain" 20
amixer set "PCM" 0
amixer set "PCM" 80%
translate into
reg4 <- 80
reg5 <- 80
reg4 <- 94
reg5 <- 94
reg4 <- 00
reg5 <- 00
reg4 <- 5e
reg5 <- 5e
s3.sh: The commands
amixer set "PCM" 0
amixer set "PCM" 80%
amixer set "PCM Capture Gain" 0
amixer set "PCM Capture Gain" 20
translate into
reg4 <- 00
reg5 <- 00
reg4 <- 5e
reg5 <- 5e
reg4 <- 80
reg5 <- 80
reg4 <- 94
reg5 <- 94
This seems to be the expected register assignments. As stated before,
these settings lead to different recording volume.
All the best,
Jochen
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