.\" This manpage has been automatically generated by docbook2man .\" from a DocBook document. This tool can be found at: .\" .\" Please send any bug reports, improvements, comments, patches, .\" etc. to Steve Cheng . .TH "SND_PCM_HW_PARAM_MASK" "" "06 October 2005" "" "" .SH NAME snd_pcm_hw_param_mask \- .SH SYNOPSIS "SYNOPSIS" .sp \fB .sp int snd_pcm_hw_param_mask (snd_pcm_t * \fIpcm\fB, snd_pcm_hw_params_t * \fIparams\fB, snd_pcm_hw_param_t \fIvar\fB, const snd_mask_t * \fIval\fB); \fR .SH "ARGUMENTS" .TP \fB\fIpcm\fB\fR -- undescribed -- .TP \fB\fIparams\fB\fR -- undescribed -- .TP \fB\fIvar\fB\fR -- undescribed -- .TP \fB\fIval\fB\fR -- undescribed -- .SH "DESCRIPTION" .PP .PP Inside configuration space defined by PARAMS remove from PAR all values not contained in MASK. Reduce configuration space accordingly. This function can be called only for SNDRV_PCM_HW_PARAM_ACCESS, SNDRV_PCM_HW_PARAM_FORMAT, SNDRV_PCM_HW_PARAM_SUBFORMAT. Return 0 on success or -EINVAL if the configuration space is empty