From: "Clemens Ladisch" <cladisch@fastmail.net>
To: Steve Strobel <steve.strobel@link-comm.com>, alsa-devel@alsa-project.org
Subject: Re: OSS app works but aplay does not with SNDRV_PCM_FMTBIT_U32_LE
Date: Wed, 19 Sep 2007 08:46:17 +0200 [thread overview]
Message-ID: <1190184377.23573.1211414421@webmail.messagingengine.com> (raw)
In-Reply-To: <0MKpCa-1IXhxr0egN-0007WC@mrelay.perfora.net>
Steve Strobel wrote:
> If I set up the snd_pcm_hardware_t structure with
>
> .formats = SNDRV_PCM_FMTBIT_U32_LE,
>
> the OSS test application sends a nice sine wave, but aplay fails with
> the following messages:
>
> root:~> aplay < /dev/urandom
> ALSA sound/blackfin/ad1836.c:1050: snd_ad1836_playback_open
> Playing raw data 'stdin' : Unsigned 8 bit, Rate 8000 Hz, Mono
> snd_pcm_hw_refine()
> ACCESS = 00000000ffffffffffffffff -> 0000000000000008
> FORMAT = 0000000000000400 -> 0000000000000000
aplay tries to set S32_LE, but the driver doesn't accept it.
Where does this S32_LE come from? Did you set up some devices in
~/.asoundrc or /etc/asound.conf, or did you create a card-specific .conf
file for your controller? (I would guess that the "default" device is
set up to use dmix.)
Regards,
Clemens
next prev parent reply other threads:[~2007-09-19 6:46 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-18 18:38 OSS app works but aplay does not with SNDRV_PCM_FMTBIT_U32_LE Steve Strobel
2007-09-19 6:46 ` Clemens Ladisch [this message]
2007-09-19 15:14 ` Steve Strobel
2007-09-19 16:03 ` Clemens Ladisch
2007-09-19 17:32 ` Steve Strobel
2007-09-20 20:50 ` Timur Tabi
2007-09-21 6:43 ` Clemens Ladisch
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