Hi,
I mean example code of a driver which works either on PCM and MP3 (or other compressed) audio stream.
Reagrds
David On Mon, Mar 15, 2010 at 2:14 PM, Mark Brown < broonie@opensource.wolfsonmicro.com> wrote:
On Mon, Mar 15, 2010 at 02:02:39PM +0000, Dajun Chen wrote:
I am wondering where to find the guidances of developing a device driver
for
a codec device which has a built-in DSP for MP3 (and tracks in other
format)
playback and recording?
OOI which device?
I'm not sure what you mean by guidance here. The standard thing would be to do it as a regular CODEC driver with a custom interface for userspace (eg, gstreamer) to talk to. The best way of handling DAPM will depend on implementation but probably representing the output of the DSP as an input pin will be easiest.