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mmap data in r/w mode

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This commit is contained in:
Abramo Bagnara 2000-09-12 12:38:40 +00:00
parent ffc35812b7
commit a616524fff
1 changed files with 4 additions and 0 deletions
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4
src/pcm/pcm_hw.c
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@ -319,7 +319,11 @@ static int snd_pcm_hw_mmap_data(snd_pcm_t *pcm, void **buffer, size_t bsize)
snd_pcm_hw_t *hw = pcm->private;
void *ptr;
int prot;
#if 0
prot = pcm->stream == SND_PCM_STREAM_PLAYBACK ? PROT_WRITE : PROT_READ;
#else
prot = PROT_WRITE | PROT_READ;
#endif
ptr = mmap(NULL, bsize, prot, MAP_FILE|MAP_SHARED,
hw->fd, SND_PCM_MMAP_OFFSET_DATA);
if (ptr == MAP_FAILED || ptr == NULL)