From: Patrice Tisserand <Patrice.Tisserand@ircam.fr>
To: Martin Herren <sputnik@on-the-web.ch>
Cc: alsa-devel@lists.sourceforge.net
Subject: Re: available sampling rate detection
Date: 11 Feb 2003 10:26:25 +0100 [thread overview]
Message-ID: <1044955585.1415.39.camel@localhost.localdomain> (raw)
In-Reply-To: <20030211085359.24a40185.sputnik@on-the-web.ch>
On Tue, 2003-02-11 at 08:53, Martin Herren wrote:
[..]
> An additional question, what is the correct way to find out all existing cards/buses on a system ? Currently we scan /proc/asound/card?/ for all pcmX[cp]. Is there a better way to do it ?
>
I think you case use a loop with snd_card_next
from alsa-lib/src/control/card.c
/**
* \brief Try to determine the next card.
* \param rcard pointer to card number
* \result zero if success, otherwise a negative error code
*
* Tries to determine the next card from given card number.
* If card number is -1, then the first available card is
* returned. If the result card number is -1, no more cards
* are available.
*/
int snd_card_next(int *rcard)
--
Patrice Tisserand <Patrice.Tisserand@ircam.fr>
IRCAM
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next prev parent reply other threads:[~2003-02-11 9:26 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-02-11 7:53 available sampling rate detection Martin Herren
2003-02-11 8:40 ` Takashi Iwai
2003-02-11 9:26 ` Patrice Tisserand [this message]
2003-02-12 18:05 ` Martin Herren
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