.\"
.\" Copyright (c) 1999 Chris Cappuccio
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.Dd July 1, 1999
.Dt LMC 4
.Os
.Sh NAME
.Nm lmc
.Nd
Lan Media Corporation SSI/HSSI/DS3 card device driver
.Sh SYNOPSIS
.Cd "lmc* at pci? dev ? function ?"
.Sh DESCRIPTION
The
.Nm
driver provides support for the Lan Media Corporation SSI, HSSI, and DS3 PCI
WAN adapters based on the DEC 21140 ethernet chip (with supporting
chips to handle the HDLC framing, and synchronous serial interface.)  The intent
is to provide a synchronous serial link with HDLC framing at speeds
of up to 10Mbps (for the SSI card), 52Mbps (for the HSSI card) and DSX jacks
for 45Mbps operation without a CSU/DSU (DS3 card).
.Pp
The card will automatically use HDLC framing and defaults to external clock source.  It should be configured as any point-to-point link.
.Pp
.Sh DIAGNOSTICS
.Bl -diag
.It "lmc%d: couldn't map interrupt"
A fatal initialization error has occurred.
.It "lmc%d: couldn't establish interrupt"
A fatal initialization error has occurred.
.It "lmc%d: enabling keepalive"
Cisco HDLC keepalive packets will be transmitted
.It "lmc%d: disabling keepalive"
Cisco HDLC keepalive packets will not be transmitted
.It "lmc%d: clock internal"
The card is using internal clocking for the line
.It "lmc%d: clock external"
The card is using external clocking for the line
.It "lmc%d: asserting DTR and RTS"
The card is sending DTR and RTS signals on the line
.It "lmc%d: deasserting DTR and RTS"
The card is not sending DTR and RTS signals on the line
.It "lmc%d: Abormal interrupt"
The card received an incomplete request
.It "lmc%d: tx_intr: failed to dequeue mbuf?!?"
Only available if compiled with LMC_DEBUG
.It "lmc%d: txput: tx not running"
Problem from tulip
Only available if compiled with LMC_DEBUG
.El
.Sh SEE ALSO
.Xr intro 4 ,
.Xr netintro 4 ,
.Xr sppp 4 ,
.Xr ifconfig 8
Lan Media Corporation has a web site with data, descriptions, and pictures
of their cards at www.lanmedia.com.
.Sh HISTORY
The
.Nm
device driver was first released from LMC to support their cards,
and was later included in NetBSD 1.4.
.Sh AUTHORS
The
.Nm
device driver was written by Michael Graff.  It was initially
derived from Matt Thomas'
.Xr de 4
driver.
The OpenBSD port and manual page are from Chris Cappuccio.