NetBSD/sys/compat/ossaudio
joerg 5ccf1c578a Add a new ioctl AUDIO_GETBUFINFO. It works like AUDIO_GETINFO, but
doesn't obtain the ports, gain and balance related parameters.
Those generally require reading from the hardware and therefore are much
more expensive to obtain. Modify OSS emulation to use the new ioctl
where possible.

This reduces CPU usage of mplayer during mp3 playback with my Thinkpad
from 20% to < 1% and from 50% to 20% during Xvid playback.

Review and comments from jmcneill@
2007-06-11 13:05:46 +00:00
..
files.ossaudio
ossaudio.c Add a new ioctl AUDIO_GETBUFINFO. It works like AUDIO_GETINFO, but 2007-06-11 13:05:46 +00:00
ossaudio.h merge ktrace-lwp. 2005-12-11 12:16:03 +00:00
ossaudiovar.h Kill caddr_t; there will be some MI fallout, but it will be fixed shortly. 2007-03-04 05:59:00 +00:00