Re: [PATCH/RFC] SPI: add DMAUNSAFE analog to David Brownell's core
- From: David Brownell <david-b@xxxxxxxxxxx>
- Date: Wed, 14 Dec 2005 11:02:52 -0800
On Wednesday 14 December 2005 9:53 am, Vitaly Wool wrote:
> Sound cards behind the SPI bus will suffer a lot more
> since it's their path to use wXrY functions (lotsa small transfers)
> rather than WLAN's.
No, "stupid drivers will suffer"; nothing new. Just observe
how the ads7846 touchscreen driver does small async transfers.
Remember too that sending audio data over SPI (rather than
say I2S, McBSP etc) is a different case than using it for the
mixer controls.
- Dave
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