14 Oct
2013
14 Oct
'13
10:33 p.m.
On Mon, Oct 14, 2013 at 02:18:27PM +0200, Michael Trimarchi wrote:
You would have to write an ALSA kernel driver for the DSP device.
This is not a good approach of the general problem because a lot of dsp has userspace support and firmware and initialization is done by userspace library. Can I change the writei and readi of the dmix plugin and let use my dsp function?
I'm not sure that's generally common - memory to memory DSPs are a bit unusual for audio since the latency requirements tend to be fairly tight. I can't think of many examples that don't need some exposure to the kernel...