Man page or keyword search:   man All Sections 1 - General Commands 2 - System Calls 3 - Subroutines, Functions 4 - Special Files 5 - File Formats 6 - Games and Screensavers 7 - Macros and Conventions 8 - Maintenence Commands 9 - Kernel Interface New Commands Server 4.4BSD AIX Alpinelinux Archlinux Aros BSDOS BSDi Bifrost CentOS Cygwin Darwin Debian DigitalUNIX DragonFly ElementaryOS Fedora FreeBSD Gentoo GhostBSD HP-UX Haiku Hurd IRIX Inferno JazzOS Kali Knoppix LinuxMint MacOSX Mageia Mandriva Manjaro Minix MirBSD NeXTSTEP NetBSD OPENSTEP OSF1 OpenBSD OpenDarwin OpenIndiana OpenMandriva OpenServer OpenSuSE OpenVMS Oracle PC-BSD Peanut Pidora Plan9 QNX Raspbian RedHat Scientific Slackware SmartOS Solaris SuSE SunOS Syllable Tru64 UNIXv7 Ubuntu Ultrix UnixWare Xenix YellowDog aLinux   11362 pages apropos Keyword Search (all sections) Output format html ascii pdf view pdf save postscript

LMC(4)			  OpenBSD Programmer's Manual			LMC(4)

NAME
     lmc - Lan Media Corporation SSI/T1/DS1/HSSI/DS3 card device

SYNOPSIS
     lmc* at pci?

DESCRIPTION
     The lmc driver provides support for the Lan Media Corporation SSI,
     T1/DS1, HSSI, and DS3 PCI WAN adapters based on the DEC 21140 Ethernet
     chip.  The adapters use a DEC 21140 Ethernet chip for the PCI bus
     interface.	 Leaving the bus interface chip, the data path goes through a
     field programmable gate array, where HDLC processing is accomplished.
     Leaving the FPGA, there are FIFO buffers and the DS1, DS3, and V.35 drive
     circuitry.

     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),
     BNC connectors for 45Mbps operation without a CSU/DSU (DS3 card), and an
     RJ45 jack for T1/E1 operation without a CSU/DSU (T1/DS1 card).

     The card will automatically use HDLC framing and defaults to external
     clock source.  For the DS1 and DS3 cards with built-in CSU/DSU
     functionality, the clock source is always external (from CSU/DSU).	 The
     ability to set cable length is not currently implemented.

     Using the sppp(4) driver, you can also use the ppp protocol.  In either
     case, the lmc interface should be configured as a point-to-point link.

DIAGNOSTICS
     lmc%d: couldn't map interrupt  A fatal initialization error has occurred.

     lmc%d: couldn't establish interrupt  A fatal initialization error has
     occurred.

     lmc%d: enabling keepalive	Cisco HDLC keepalive packets will be
     transmitted.

     lmc%d: disabling keepalive	 Cisco HDLC keepalive packets will not be
     transmitted.

     lmc%d: clock internal  The card is using internal clocking for the line.

     lmc%d: clock external  The card is using external clocking for the line.

     lmc%d: asserting DTR and RTS  The card is sending DTR and RTS signals on
     the line.

     lmc%d: deasserting DTR and RTS  The card is not sending DTR and RTS
     signals on the line.

     lmc%d: Abnormal interrupt	The card received an incomplete request.  This
     may be a sign of a hardware fault.

     lmc%d: tx_intr: failed to dequeue mbuf?!?	Only available if compiled
     with LMC_DEBUG.

     lmc%d: txput: tx not running  Problem from tulip.	Only available if
     compiled with LMC_DEBUG.

SEE ALSO
     netintro(4), sppp(4), ifconfig(8), lmccontrol(8)

     SBE (formerly Lan Media Corporation) has a web site with data,
     descriptions, and pictures of their cards at www.sbei.net.

AUTHORS
     The lmc device driver was written by Michael Graff, and was derived in
     part from Matt Thomas' de(4) driver.  The OpenBSD port and manual page
     are from Chris Cappuccio.	Later enhancements to support the LMC1200 card
     are based on LMC's Linux driver.

OpenBSD 4.9		       October 31, 2009			   OpenBSD 4.9

Vote for polarhome