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snd_pcm_hw_param_value(9) [centos man page]

SND_PCM_HW_PARAM_VAL(9) 					      PCM API						   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 RETURN
The value for field var if it's fixed in configuration space defined by params. -EINVAL otherwise. COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 SND_PCM_HW_PARAM_VAL(9)

Check Out this Related Man Page

GLGETQUERYIV(3G)						    OpenGL 3.3							  GLGETQUERYIV(3G)

NAME
glGetQueryiv - return parameters of a query object target C SPECIFICATION
void glGetQueryiv(GLenum target, GLenum pname, GLint * params); PARAMETERS
target Specifies a query object target. Must be GL_SAMPLES_PASSED, GL_ANY_SAMPLES_PASSED, GL_PRIMITIVES_GENERATED, GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN, GL_TIME_ELAPSED, or GL_TIMESTAMP. pname Specifies the symbolic name of a query object target parameter. Accepted values are GL_CURRENT_QUERY or GL_QUERY_COUNTER_BITS. params Returns the requested data. DESCRIPTION
glGetQueryiv returns in params a selected parameter of the query object target specified by target. pname names a specific query object target parameter. When pname is GL_CURRENT_QUERY, the name of the currently active query for target, or zero if no query is active, will be placed in params. If pname is GL_QUERY_COUNTER_BITS, the implementation-dependent number of bits used to hold the result of queries for target is returned in params. NOTES
If an error is generated, no change is made to the contents of params. ERRORS
GL_INVALID_ENUM is generated if target or pname is not an accepted value. SEE ALSO
glGetQueryObject(), glIsQuery() COPYRIGHT
Copyright (C) 2005 Addison-Wesley. This material may be distributed subject to the terms and conditions set forth in the Open Publication License, v 1.0, 8 June 1999. http://opencontent.org/openpub/. OpenGL 3.3 03/08/2011 GLGETQUERYIV(3G)

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