Backward compatible for pcm_write() pcm_read()

Current return value of pcm_write()/pcm_read()
comes from pcm_writei()/pcm_readi() which is the
actual frames written/read. But the old pcm_write()
/pcm_read() just returns 0 on success and a nagative
value on error.

This change will keep the pcm_write()/pcm_read() as
the old behavior which has been already used by
many applications, and is also matching the comment
above each function.

Signed-off-by: Kui Wang <wangkuisuper@hotmail.com>

0 files changed, 0 insertions, 0 deletions