Introduce mixer_enable (default: YES).

PR:		conf/101268
Submitted by:	Eugene Grosbein <eugen@grosbein.pp.ru>
Approved by:	cperciva (mentor)
X-MFC after:	6.2-RELEASE
Sponsored by:	FreeBSD Test-Bugathon

etc/defaults/rc.conf

@@ -535,6 +535,7 @@ bsdextended_script="/etc/rc.bsdextended"	# Default mac_bsdextended(4)
 						# ruleset file.
 newsyslog_enable="YES"	# Run newsyslog at startup.
 newsyslog_flags="-CN"	# Newsyslog flags to create marked files
+mixer_enable="YES"	# Run the sound mixer.
 
 ##############################################################
 ### Jail Configuration #######################################

etc/rc.d/mixer

@@ -34,6 +34,7 @@
 . /etc/rc.subr
 
 name="mixer"
+rcvar="mixer_enable"
 stop_cmd="mixer_stop"
 start_cmd="mixer_start"
 reload_cmd="mixer_start"

share/man/man5/rc.conf.5

@@ -24,7 +24,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd September 29, 2006
+.Dd October 6, 2006
 .Dt RC.CONF 5
 .Os
 .Sh NAME
@@ -3612,6 +3612,11 @@ For example:
 autobridge_interfaces="bridge0"
 autobridge_bridge0="tap* dc0 vlan[345]"
 .Ed
+.It mixer_enable
+.Pq Vt bool
+If set to
+.Dq Li YES ,
+enable support for sound mixer.
 .El
 .Sh FILES
 .Bl -tag -width ".Pa /etc/defaults/rc.conf" -compact
@@ -3668,6 +3673,7 @@ autobridge_bridge0="tap* dc0 vlan[345]"
 .Xr lpd 8 ,
 .Xr mdconfig 8 ,
 .Xr mdmfs 8 ,
+.Xr mixer 8,
 .Xr mountd 8 ,
 .Xr moused 8 ,
 .Xr mrouted 8 ,