10 Mar
2009
10 Mar
'09
9:59 a.m.
At Tue, 10 Mar 2009 17:52:46 +0530,
Viral Mehta wrote:
Takashi Iwai wrote:
LAD is no good place for sending a patch of sound driver.
Please post to alsa-devel ML (and add Cc to me).
thanks,
Takashi
At Tue, 10 Mar 2009 10:00:13 +0100,
Clemens Ladisch wrote:
Oh okie. It makes sense.
I just sent out a patch on LAD. Should I resubmit with what you proposed ? (CC alsa-devel)
Viral Mehta wrote:
Also, the current code behaves intentionally so (as it's designed for
mic-loopback volume).
A more feasible fix would be to add another if check for *_CVOLUME
instead of moving it.
Hi,
I am trying to do gain control while RECORDING for my Audio Mic device.
My application opens /dev/mixer device and calls ioctl(fdmixer,
MIXER_WRITE(SOUND_MIXER_MIC), ...)
But, the call fails. It traces to sound/core/oss/mixer_oss.c file and
snd_mixer_oss_put_volume1() function.
It never falls in "if (slot->present & SNDRV_MIXER_OSS_PRESENT_CVOLUME)"
as condition "if (slot->present & SNDRV_MIXER_OSS_PRESENT_PVOLUME) "
comes as false.
I think there is a bug in kernel and I think it should be like as below,
--- sound/core/oss/mixer_oss.c 2008-12-03 13:24:02.000000000 +0530
+++ sound/core/oss/mixer_oss.c 2009-03-09 16:22:06.548766896 +0530
@@ -688,7 +688,7 @@ static int snd_mixer_oss_put_volume1(str
if (slot->present & SNDRV_MIXER_OSS_PRESENT_PVOLUME) {
snd_mixer_oss_put_volume1_vol(fmixer, pslot,
slot->numid[SNDRV_MIXER_OSS_ITEM_PVOLUME], left, right);
- if (slot->present & SNDRV_MIXER_OSS_PRESENT_CVOLUME)
+ } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_CVOLUME) {
snd_mixer_oss_put_volume1_vol(fmixer, pslot,
slot->numid[SNDRV_MIXER_OSS_ITEM_CVOLUME], left, right);
} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GVOLUME) {
snd_mixer_oss_put_volume1_vol(fmixer, pslot,
slot->numid[SNDRV_MIXER_OSS_ITEM_GVOLUME], left, right);
Your mailer mangled the patch; see linux/Documentation/email-clients.txt.