linux-kernel - Re: [Alsa-devel] intel8x0-snd module fails to correctly detect clock when compiled in kernel

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Date:	Tue, 26 Sep 2006 16:40:34 +0200
From:	Takashi Iwai <tiwai@...e.de>
To:	Clemens Ladisch <clemens@...isch.de>
Cc:	Martin van Es <martin@...anes.com>,
	alsa-devel@...ts.sourceforge.net, linux-kernel@...r.kernel.org
Subject: Re: [Alsa-devel] intel8x0-snd module fails to correctly detect	clock when compiled in kernel

At Tue, 26 Sep 2006 16:25:23 +0200,
Clemens Ladisch wrote:
> 
> > I tried to use ac97_clock=48000 as kernel boot parameter, but the
> > doesn't help (for the in-kernel version of the module).
> 
> This option is intended to specify a value different from the
> default.  Try 47999.  ;-)

48000 is indeed taken as 48000 Hz in the recent version.  It's 0
meaning the default value for auto-measurement.

For passing a value for driver-specific boot options, you have to add 
"DRIVER." prefix to the option name, such as
	snd_intel8x0.ac97_clock=48000


Takashi
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