From 6bbe77a79ad7d82e11ab0e76fe14261573a10f71 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Fri, 10 Feb 2012 22:07:09 +0000 Subject: pcm: Constify write buffers Mark the write buffers as const - they won't be modified and this is friendlier to applications. --- pcm.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'pcm.c') diff --git a/pcm.c b/pcm.c index 2ef7075..d7f1614 100644 --- a/pcm.c +++ b/pcm.c @@ -295,7 +295,7 @@ static int pcm_areas_copy(struct pcm *pcm, unsigned int pcm_offset, return 0; } -static int pcm_mmap_write_areas(struct pcm *pcm, char *src, +static int pcm_mmap_write_areas(struct pcm *pcm, const char *src, unsigned int offset, unsigned int size) { void *pcm_areas; @@ -355,14 +355,14 @@ int pcm_get_htimestamp(struct pcm *pcm, unsigned int *avail, return 0; } -int pcm_write(struct pcm *pcm, void *data, unsigned int count) +int pcm_write(struct pcm *pcm, const void *data, unsigned int count) { struct snd_xferi x; if (pcm->flags & PCM_IN) return -EINVAL; - x.buf = data; + x.buf = (void*)data; x.frames = count / (pcm->config.channels * pcm_format_to_bits(pcm->config.format) / 8); @@ -748,7 +748,7 @@ int pcm_wait(struct pcm *pcm, int timeout) return 1; } -int pcm_mmap_write(struct pcm *pcm, void *buffer, unsigned int bytes) +int pcm_mmap_write(struct pcm *pcm, const void *buffer, unsigned int bytes) { int err = 0, frames, avail; unsigned int offset = 0, count; -- cgit v1.2.3