[alsa-devel] [PATCH v2 1/2] ALSA: Add params_set_format helper

Fang, Yang A yang.a.fang at intel.com
Mon Feb 9 07:58:39 CET 2015



> -----Original Message-----
> From: Takashi Iwai [mailto:tiwai at suse.de]
> Sent: Sunday, February 08, 2015 10:41 PM
> To: Fang, Yang A
> Cc: broonie at kernel.org; lgirdwood at gmail.com; alsa-devel at alsa-project.org;
> N, Harshapriya; Koul, Vinod; Jain, Praveen K; Iriawan, Denny; Strasser, Kevin;
> Lin, Mengdong
> Subject: Re: [PATCH v2 1/2] ALSA: Add params_set_format helper
> 
> At Sun,  8 Feb 2015 16:01:36 -0800,
> yang.a.fang at intel.com wrote:
> >
> > From: "Fang, Yang A" <yang.a.fang at intel.com>
> >
> > Add a helper to set pcm format directly from params
> >
> > Signed-off-by: Fang, Yang A <yang.a.fang at intel.com>
> > ---
> >  include/sound/pcm_params.h |    7 +++++++
> >  1 file changed, 7 insertions(+)
> >
> > diff --git a/include/sound/pcm_params.h b/include/sound/pcm_params.h
> > index 6b1c78f..e6fe584 100644
> > --- a/include/sound/pcm_params.h
> > +++ b/include/sound/pcm_params.h
> > @@ -366,4 +366,11 @@ params_physical_width(const struct
> snd_pcm_hw_params *p)
> >  	return snd_pcm_format_physical_width(params_format(p));
> >  }
> >
> > +static inline void
> > +params_set_format(struct snd_pcm_hw_params *p, snd_pcm_format_t
> fmt)
> > +{
> > +	snd_mask_set(&p->masks[SNDRV_PCM_HW_PARAM_FORMAT -
> > +		SNDRV_PCM_HW_PARAM_FIRST_MASK], (__force int)fmt);
> 
> Use hw_params_mask().
> 
> 
> Takashi

Did not find hw_params_mask .
Do you mean change params_set_format (struct snd_pcm_hw_params *p, snd_pcm_format_t fmt)
To 
hw_params_mask(struct snd_pcm_hw_params *p, snd_pcm_format_t fmt) ?

Thanks,
Yang


More information about the Alsa-devel mailing list