From: "Clemens Ladisch" <cladisch@fastmail.net>
To: Timur Tabi <timur@freescale.com>
Cc: alsa-devel@alsa-project.org
Subject: Re: Unable to find an usable access for 'default'
Date: Fri, 06 Jul 2007 12:50:27 +0200 [thread overview]
Message-ID: <1183719027.2620.1198799059@webmail.messagingengine.com> (raw)
In-Reply-To: <468CE7AD.8020305@freescale.com>
Timur Tabi wrote:
> Clemens Ladisch wrote:
> > It means that the plug plugin (that the ALSA lib uses to automatically
> > convert between sample formats) was not able to find any combination of
> > format/rate/channels/access that would work with your hardware.
>
> ... When you say "access", what do you mean by that?
ALSA-lib's access type specifies whether to use mmap or not, and whether
the sample are interleaved or not. (The SNDRV_PCM_INFO_*INTERLEAVED and
SNDRV_PCM_INFO_MMAP* flags specify the capabilities of the device.)
> > It is possible that some entries in the snd_pcm_hardware struct are set
> > in an inconsistent way. Please show the code of the driver.
>
> I'd like to show the code, but the project is unannounced, so I can't
> yet. Can you give me a suggestion as to what I should be looking for to
> resolve this?
Look at the values in the snd_pcm_hardware structure and at the
constraints the driver adds manually, if there are any.
HTH
Clemens
next prev parent reply other threads:[~2007-07-06 10:50 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-03 22:19 Unable to find an usable access for 'default' Timur Tabi
2007-07-04 6:34 ` Clemens Ladisch
2007-07-05 12:44 ` Timur Tabi
2007-07-06 10:50 ` Clemens Ladisch [this message]
2007-07-06 22:32 ` Timur Tabi
2007-07-09 6:51 ` Clemens Ladisch
2007-07-09 21:02 ` Timur Tabi
2007-07-10 6:29 ` Clemens Ladisch
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