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| author | Takashi Iwai <tiwai@suse.de> | 2011-09-28 17:12:59 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2011-09-28 17:15:14 +0200 |
| commit | 18a2b9623370479d1646b9b94e3528683f3b74de (patch) | |
| tree | 8dc90994f1cdccb6b516ae4f71a299c8fea0fed7 /include/sound/pcm.h | |
| parent | a597310331177cd3969f840a9a6290e3c212e4cf (diff) | |
| download | linux-18a2b9623370479d1646b9b94e3528683f3b74de.tar.bz2 | |
ALSA: pcm - Export snd_pcm_lib_default_mmap() helper
Export the default mmap function, snd_pcm_lib_default_mmap().
The upcoming non-snooping support in HD-audio driver will use this
to override the mmap method.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'include/sound/pcm.h')
| -rw-r--r-- | include/sound/pcm.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/sound/pcm.h b/include/sound/pcm.h index 57e71fa33f7c..249d98838d90 100644 --- a/include/sound/pcm.h +++ b/include/sound/pcm.h @@ -1035,6 +1035,8 @@ static inline void snd_pcm_mmap_data_close(struct vm_area_struct *area) atomic_dec(&substream->mmap_count); } +int snd_pcm_lib_default_mmap(struct snd_pcm_substream *substream, + struct vm_area_struct *area); /* mmap for io-memory area */ #if defined(CONFIG_X86) || defined(CONFIG_PPC) || defined(CONFIG_ALPHA) #define SNDRV_PCM_INFO_MMAP_IOMEM SNDRV_PCM_INFO_MMAP |