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SuSE 11.3 - man page for snd_pcm_hw_param_value (suse section 9)

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SND_PCM_HW_PARAM_VAL(9) 		  Sound Devices 		  SND_PCM_HW_PARAM_VAL(9)

NAME
       snd_pcm_hw_param_value - return params field var value

SYNOPSIS
       int snd_pcm_hw_param_value(const struct snd_pcm_hw_params * params,
				  snd_pcm_hw_param_t var, int * dir);

ARGUMENTS
       params
	   the hw_params instance

       var
	   parameter to retrieve

       dir
	   pointer to the direction (-1,0,1) or NULL

DESCRIPTION
       Return the value for field var if it's fixed in configuration space defined by params.
       Return -EINVAL otherwise.

COPYRIGHT
Kernel Hackers Manual 2.6.		    July 2010			  SND_PCM_HW_PARAM_VAL(9)
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