From mboxrd@z Thu Jan  1 00:00:00 1970
From: Marcel Holtmann <marcel@holtmann.org>
Subject: Re: IO plugin and multiple poll descriptors
Date: Wed, 18 May 2005 15:45:11 +0200
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To: Takashi Iwai <tiwai@suse.de>
Cc: ALSA Mailing List <alsa-devel@lists.sourceforge.net>
List-Id: alsa-devel@alsa-project.org

Hi Takashi,

> > > > What happens at the moment when I really return two poll_fd.
> > 
> > What about this one?
> 
> The poll_descriptors_count and poll_descriptors should return 2,
> for example,
> 
> int my_poll_descriptors_count(snd_pcm_ioplug_t *io)
> {
> 	return 2;
> }
> 
> int my_poll_descriptors(snd_pcm_ioplug_t *io, struct pollfd *pfds,
> 	unsigned int space)
> {
> 	if (space < 2) {
> 		error("Too little pfd\n");
> 		return 0;
> 	}
> 	pfds[0].fd = fd0;
> 	pfds[0].events = POLLOUT | POLLERR | POLLNVAL
> 	pfds[1].fd = fd1;
> 	pfds[0].events = POLLIN | POLLERR | POLLNVAL
> 	return 2;
> }

I know, but what I meant was if both descriptors are handled inside the
library. Previous you said that multiple descriptors are not supported.
Of did I understand that wrong?

Regards

Marcel




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