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From: Timur Tabi <timur@freescale.com>
To: Takashi Iwai <tiwai@suse.de>
Cc: ALSA devel <alsa-devel@alsa-project.org>
Subject: Re: How do I tell ALSA that my driver supports every possible sample rate?
Date: Tue, 24 Jul 2007 14:30:29 -0500	[thread overview]
Message-ID: <46A65355.4040101@freescale.com> (raw)
In-Reply-To: <s5hd4yhyh5n.wl%tiwai@suse.de>

Takashi Iwai wrote:

>> #define SNDRV_PCM_RATE_ALL (SNDRV_PCM_RATE_8000_192000 | SNDRV_PCM_RATES_5512)
> 
> I'd prefer 5512_19200.  The word "ALL" may vary in future.

That's the point.  It's supposed to indicate all sample rates no matter what they are or 
will be.  However, that may be a moot point ...

> Anyway, the bits SND_PCM_RATES_[0-9]* are ignored when _CONTINUOUS or
> _KNOT is passed.  Only the values in rate_min/rate_max fields are
> referred as actual min/max rates.

Ah!  I wish this stuff were documented in the source files.

So can I do this?

static const struct snd_pcm_hardware mpc86xx_pcm_hardware = {

	.rates			= SNDRV_PCM_RATE_CONTINUOUS,
	.rate_min		= 1,
	.rate_max		= (unsigned int) -1,


-- 
Timur Tabi
Linux Kernel Developer @ Freescale

  reply	other threads:[~2007-07-24 19:30 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-07-23 15:54 How do I tell ALSA that my driver supports every possible sample rate? Timur Tabi
2007-07-23 16:39 ` Liam Girdwood
2007-07-23 17:06   ` Timur Tabi
2007-07-23 17:29     ` Liam Girdwood
2007-07-23 17:14 ` Clemens Ladisch
2007-07-23 17:27   ` Timur Tabi
2007-07-24  7:14     ` Clemens Ladisch
2007-07-24 14:54       ` Timur Tabi
2007-07-24 15:07         ` Takashi Iwai
2007-07-24 19:30           ` Timur Tabi [this message]
2007-07-25 10:18             ` Takashi Iwai
2007-07-25 14:37               ` Timur Tabi
2007-07-25 15:08                 ` Takashi Iwai
2007-07-25 15:12                   ` Takashi Iwai
2007-07-25 15:24                     ` Liam Girdwood

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