Add/adjust man pages for UDS. Contributed by Thomas Cort

man/man4/Makefile

@@ -1,4 +1,4 @@
-MAN=	console.4 controller.4 dev.4 fd.4 ip.4 lp.4 mtio.4 tty.4
+MAN=	console.4 controller.4 dev.4 fd.4 ip.4 lp.4 mtio.4 tty.4 uds.4
 
 .include <bsd.man.mk>
 .include <bsd.subdir.mk>

man/man4/dev.4

@@ -199,6 +199,10 @@ device can be used to produce or record air vibrations using a Soundblaster
 The
 .B mixer
 device is used to control the audio driver.
+.SS "uds (major 18)"
+The
+.B uds
+device is used to implement unix domain sockets.
 .SH FILES
 .TP 10
 .B /dev/*
@@ -212,6 +216,7 @@ All MINIX 3 devices
 .BR fd (4),
 .BR controller (4),
 .BR ip (4),
+.BR uds (4),
 .BR tty (4),
 .BR MAKEDEV (8).
 .SH DIAGNOSTICS

man/man4/uds.4

@@ -0,0 +1,15 @@
+.TH UDS 4
+.SH NAME
+uds \- unix domain sockets device
+.SH DESCRIPTION
+The \fIuds\fP device gives access to the unix domain socket services in 
+Minix. It is a virtual device similar to the \fItcp\fP and \fIudp\fP 
+Internet Protocol server devices.
+.SH SEE ALSO
+.BR socket(2),
+.BR socketpair(2),
+.BR dev(4),
+.BR ip(4),
+.BR unix(8)
+.SH HISTORY
+This device first appeared in Minix 3.1.8.