[alsa-devel] SPI PCM capture device examples please
Matt Flax
flatmax at flatmax.org
Thu Nov 14 02:01:17 CET 2013
I guess that IIO support for ASLA is not on the cards ?
Matt
On 13/11/13 23:07, Matt Flax wrote:
> Hi there,
>
> Is it possible to write an ALSA driver for a device which already has
> an SPI driver ?
>
> I have been trying to look for examples in the ALSA kernel source
> tree, however all the drivers I have looked at use SPI to control the
> codecs .... there must be an example where the codec uses SPI for PCM
> data ?
>
> If someone is aware of any codecs which use SPI for PCM data can you
> please link me to the example driver code ?
>
> The device I am interested in operates in slave SPI mode and only has
> ADCs, so it only has one input SPI line (and other necessary lines,
> such as clk). Its data sample rates are up to 1 M Hz.
>
> Here is a link to the SPI driver in question :
> http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/drivers/iio/adc/ad7476.c?id=HEAD
>
>
> thanks
> Matt
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