[alsa-devel] PATCH[1/1] Add I2S common driver for Intel MID platform

Mark Brown broonie at opensource.wolfsonmicro.com
Wed Oct 20 01:18:30 CEST 2010

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.

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