Paul Davis wrote:
> something must have changed. "back in the day", you could not possible
> use the mmap API to deliver > 1 period at a time. has that changed?
Reading
http://www.alsa-project.org/alsa-doc/alsa-lib/group___p_c_m___direct.html
at least I understand that readi/writei/readn/writen are just helper
functions around mmap_begin/mmap_commit.
Essentially it should be possible to do read/modify/write as well as the
memcpy actions on mmap buffer, because former can be implemented in user
space using latter...
- Jussi
_______________________________________________
Linux-audio-dev mailing list
Linux-audio-dev@email-addr-hidden
http://lists.linuxaudio.org/mailman/listinfo/linux-audio-dev
Received on Tue Sep 8 00:15:02 2009
This archive was generated by hypermail 2.1.8 : Tue Sep 08 2009 - 00:15:02 EEST