From: Mark Brown <broonie@opensource.wolfsonmicro.com>
To: pl bossart <bossart.nospam@gmail.com>
Cc: "alsa-devel@alsa-project.org" <alsa-devel@alsa-project.org>,
"Le Gall, Louis" <louis.le.gall@intel.com>,
lrg@slimlogic.co.uk
Subject: Re: PATCH[1/1] Add I2S common driver for Intel MID platform
Date: Tue, 19 Oct 2010 16:18:30 -0700 [thread overview]
Message-ID: <20101019231829.GF3803@opensource.wolfsonmicro.com> (raw)
In-Reply-To: <AANLkTim8uEuSYhHyedLn3gbaPQLvwo7Gu+eo-Vo23KvC@mail.gmail.com>
On Tue, Oct 19, 2010 at 05:48:23PM -0500, pl bossart wrote:
> Louis meant ALSA rather than ASOC. We use burst transfers to reduce
> round-trip delay, the whole notion of periods/period elapsed/ring
> buffer doesn't make sense here and there is in-band signalling that
Actually the burst mode stuff has been done with TLV320DAC33, though
more for power consumption reduction than for reducing RTT.
> should not be interpreted as samples. If ALSA had a simplified API for
> byte streams sent over a serial output, we would have no problems
> using it and of course ASOC would be used then.
Non-audio data in-band is more of a problem, though, as is data that
doesn't at the end of the day map down to periodic data.
prev parent reply other threads:[~2010-10-19 23:18 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-18 11:39 PATCH[1/1] Add I2S common driver for Intel MID platform Le Gall, Louis
2010-10-19 21:32 ` Mark Brown
2010-10-19 22:48 ` pl bossart
2010-10-19 23:01 ` Liam Girdwood
2010-10-19 23:19 ` pl bossart
2010-10-19 23:18 ` Mark Brown [this message]
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