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-rw-r--r--share/man/man4/snp.413
1 files changed, 8 insertions, 5 deletions
diff --git a/share/man/man4/snp.4 b/share/man/man4/snp.4
index 809d30b..df70cb2 100644
--- a/share/man/man4/snp.4
+++ b/share/man/man4/snp.4
@@ -1,7 +1,7 @@
.\"
.\" $FreeBSD$
.\"
-.Dd February 24, 1995
+.Dd September 18, 2005
.Dt SNP 4
.Os
.Sh NAME
@@ -30,17 +30,20 @@ To associate a given
.Nm
device with a tty to be observed, open the
.Nm
-device and then use the
+device and a tty device, and then issue the
.Dv SNPSTTY
-ioctl.
+ioctl on
+.Nm
+device.
The argument passed to the
.Xr ioctl 2
is the address of a variable of type
-.Vt udev_t .
+.Vt int ,
+holding the file descriptor of a tty device.
To detach the
.Nm
device from a tty use a pointer to a value of
-.Dv NODEV .
+\-1.
.Pp
The
.Dv SNPGTTY
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