CVS commit: src

["Nathanial Sloss" <nat%netbsd.org@localhost>]

Module Name:    src
Committed By:   nat
Date:           Fri Feb 10 19:31:42 UTC 2017

Modified Files:
        src/share/man/man4: audio.4
        src/sys/dev: audio.c audiobell.c audiovar.h
        src/sys/sys: audioio.h file.h
        src/usr.bin/audio/ctl: audioctl.1 ctl.c

Log Message:
Audio now uses fdclone, there is no longer a limitation of one audio
instance per process.  Virtual channels are placed in a queue, so there is
no longer a compile time limit of VAUDIOCHANS.

A new sysctl has been added to control multiple user access.
Mixer labels on virtual channels are now prefixed by vchan.

audiobell.c and audioctl have been updated to reflect these changes.

Use of fdclone was posted to tech-kern@ and improvements made.
Multiuser access control changes and the use of a queue were suggessted by
pgoyette@


To generate a diff of this commit:
cvs rdiff -u -r1.73 -r1.74 src/share/man/man4/audio.4
cvs rdiff -u -r1.301 -r1.302 src/sys/dev/audio.c
cvs rdiff -u -r1.12 -r1.13 src/sys/dev/audiobell.c
cvs rdiff -u -r1.49 -r1.50 src/sys/dev/audiovar.h
cvs rdiff -u -r1.35 -r1.36 src/sys/sys/audioio.h
cvs rdiff -u -r1.80 -r1.81 src/sys/sys/file.h
cvs rdiff -u -r1.20 -r1.21 src/usr.bin/audio/ctl/audioctl.1
cvs rdiff -u -r1.41 -r1.42 src/usr.bin/audio/ctl/ctl.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.