Document these drivers' support for netgraph(4).

1 files changed, 19 insertions, 0 deletions

diff --git a/share/man/man4/man4.i386/sr.4 b/share/man/man4/man4.i386/sr.4
index 56ea34d..ea631ec 100644
--- a/share/man/man4/man4.i386/sr.4
+++ b/share/man/man4/man4.i386/sr.4
@@ -56,6 +56,10 @@ adding
 to
 .Xr ifconfig 8 .
 .Pp
+Alternately, the driver can be compiled to support
+.Xr netgraph 4
+(see below).
+.Pp
 The
 .Em flags
 field is optional. If it isn't specified, the driver will
@@ -92,6 +96,17 @@ The card only supports IRQ 3, 4, 5, 7, 10, 11, 12 and 15.
 .Pp
 The iomem area is a 16Kb block and must start at a 16Kb boundary.
 .Pp
+.Sh NETGRAPH SUPPORT
+If the kernel is compiled with
+.Dv "options NETGRAPH"
+then the sppp and Cisco HDLC modes are disabled (and the sppp driver
+is unneeded), and this driver functions as a
+.Xr netgraph 4
+node with a single hook named
+.Dv rawdata .
+Connecting to this hook enables the transmission of raw HDLC frames.
+The node will have the same name as the device, e.g.,
+.Dv sr0 .
 .Sh DIAGNOSTICS
 .Bl -diag
 .It "sr%d: Warning illegal interrupt %d."
@@ -102,6 +117,7 @@ The card cannot use the specified interrupt. Choose a different one.
 .It Pa /sys/i386/isa/ic/hd64570.h
 .It Pa /sys/i386/isa/if_srregs.h
 .It Pa /sys/i386/isa/if_sr.c
+.It Pa /sys/i386/isa/if_sr.h
 .It Pa /sys/pci/if_sr_p.c
 .El
 .Sh BUGS
@@ -113,6 +129,7 @@ The code can probably stand some optimizing.
 .Xr ar 4 ,
 .Xr cx 4 ,
 .Xr netintro 4 ,
+.Xr netgraph 4 ,
 .Xr ifconfig 8 ,
 .Xr lsdev 8
 .Sh AUTHORS
@@ -120,3 +137,5 @@ The
 .Nm sr
 device driver was written by
 .An John Hay Aq jhay@FreeBSD.org
+Netgraph support was added by
+.An Julian Elischer Aq julian@FreeBSD.org .