Write can return less then requested bytes, but we treat this as an error.
Anyhow, errno is not updated in this case and we can end up with a confusing error message.
For example, when there is no room to write data into the output file we receive:
$ arecord -d 2000 -c 2 -r 192000 -f S16_LE -Dplughw:0,0 audio.wav Recording WAVE '/mnt/msc/audio.wav' : Signed 16 bit Little Endian, Rate 192000 Hz, Stereo audio.wav: No such file or directory
Signed-off-by: Daniel Baluta daniel.baluta@nxp.com --- aplay/aplay.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/aplay/aplay.c b/aplay/aplay.c index ee480f2..9547d1b 100644 --- a/aplay/aplay.c +++ b/aplay/aplay.c @@ -3079,7 +3079,7 @@ static void capture(char *orig_name) break; } if (write(fd, audiobuf, c) != c) { - perror(name); + fprintf(stderr, "Couldn't write all data to %s\n", name); in_aborting = 1; break; }