On Sat, Aug 15, 2009 at 11:53 AM, Jon Smirl<jonsmirl@xxxxxxxxx> wrote:
> void
> bfio_synch_stop(void)
> {
> int n;
>
> if (base_handle == NULL) {
> return;
> }
> FOR_IN_AND_OUT {
> for (n = 0; n < n_handles[IO]; n++) {
I added:
snd_pcm_nonblock(handles[IO][n], 0)
snd_pcm_drain(handles[IO][n])
snd_pcm_nonblock(handles[IO][n], SND_PCM_NONBLOCK )
> snd_pcm_close(handles[IO][n]);
> }
> }
> }
This is not working correctly.
snd_pcm_nonblock(handles[IO][n], 0)
It does not remove O_NONBLOCK for some unknown reason.
I added printf() to snd_pcm_hw_nonblock()
The fcntl is not getting an error.
if (fcntl(fd, F_SETFL, flags) < 0) {
Flags being set are 2 (O_RDWR).
But when I get over to snd_pcm_pre_drain_init(), I get the -EAGAIN error.
static int snd_pcm_pre_drain_init(struct snd_pcm_substream *substream,
int state)
{
printk("snd_pcm_pre_drain_init\n");
if (substream->f_flags & O_NONBLOCK)
return -EAGAIN;
printk("snd_pcm_pre_drain_init 1\n");
substream->runtime->trigger_master = substream;
return 0;
}
So I have to conclude that fcntl(fd, F_SETFL, flags) is not removing
the O_NONBLOCK flag.
If I change the inital PCM open to be blocking everything works as expected.
--
Jon Smirl
jonsmirl@xxxxxxxxx
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