From mboxrd@z Thu Jan  1 00:00:00 1970
From: Takashi Iwai <tiwai@suse.de>
Subject: Re: alsactl and alsamixer fail for extigy
Date: Mon, 09 Dec 2002 15:51:20 +0100
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To: "John S. Denker" <jsd@monmouth.com>
Cc: alsa-devel@lists.sourceforge.net
List-Id: alsa-devel@alsa-project.org

Hi,

it became a quite late reply, since i caught a cold in the last
week and have been in bed...

At Thu, 05 Dec 2002 06:57:48 -0500,
John S. Denker <jsd@monmouth.com> wrote:
> 
> When talking to Extigy on the USB bus:
> 
>     alsactl -f /tmp/foo store
> alsactl: get_control:202: Cannot read control'2,0,0,Digital In Playback 
> Source,0': Invalid argument
> alsactl: get_control:202: Cannot read control '2,0,0,3D Stereo Extender 
> Switch,0': Invalid argument
> alsactl: get_control:202: Cannot read control '2,0,0,Up Down Switch,0': 
> Invalid argument
> alsactl: get_control:202: Cannot read control '2,0,0,Up Down Mode 
> Select,0': Invalid argument
> 
>     alsactl -f /tmp/foo restore
> alsactl: set_control:976: Cannot write control '2:0:0:Digital In 
> Playback Source:134521100' : Invalid argument
> alsactl: set_control:976: Cannot write control '2:0:0:3D Stereo Extender 
> Switch:134521100' : Invalid argument
> alsactl: set_control:976: Cannot write control '2:0:0:Up Down 
> Switch:134521100' : Invalid argument
> alsactl: set_control:976: Cannot write control '2:0:0:Up Down Mode 
> Select:134521100' : Invalid argument
> 
> I modified alsactl to mke the foregoing errors non-fatal. That allowed
> me to progress far enough to discover other errors, as reported a few
> minutes ago.
> 
> Alsamixer also dies with "invalid argument".
> 
> I suspect this is a driver bug (as opposed to a utils bug) because I
> suspect the driver is misinforming the utils as to what controls it
> offers.

perhaps yes -- don't you have any kernel error messages regarding
this? 
could you compile the alsa-driver with --with-debug=detect?  it will
give you more verbose debug messages.

i need the kernel error messages to know whether the parameters of
these mixer elements are correct, or whether the bug is in the usb
controller module.


thanks,

Takashi


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