Nikita V. Youshchenko wrote:
> Soon I will work on a linux kernel driver for a custom audio decoder device
> that is being developed by a company I work for.
Kernel sound programming would be discussed on the alsa-devel list.
> If not going into details, that devices reads A52-encoded stream
> from system memory, and writes raw pcm stream to system memory.
>
> Simplest thing to do is - implement a character device, where user-space
> will write encoded stream, and from where user-space will read decoded
> stream.
>
> However, perhaps a better architecture (e.g. in-kernel intergation with an
> audio sink) is possible?
One of the implicit assumptions of ALSA sound devices is that they run
in real time, and at a constant bit rate. As far as I can tell, your
device would be 'just' a DSP, so a character device would be appropriate.
Regards,
Clemens
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Received on Tue Jul 26 20:15:01 2011
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