Re: [PATCH/RFC] SPI: add DMAUNSAFE analog to David Brownell's core

From: David Brownell
Date: Wed Dec 14 2005 - 14:02:51 EST


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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