---
name: "ibmtr_cs"
section: "4"
platform: "linux"
package: "pcmcia-cs"
version: "3.2.8-9"
release: "Debian 4.0 (Etch)"
platforms: ["linux"]
url: "https://new.carta.tech/ibmtr_cs"
---

# ibmtr\_cs(4)

IBM Token Ring PCMCIA device driver

## NAME

ibmtr\_cs - IBM Token Ring PCMCIA device driver

## SYNOPSIS

**insmod ibmtr\_cs.o** \[**pc\_debug=** *n*\] \[**mmiobase=** *n*\] \[**srambase=** *n*\] \[**ringspeed=** *n*\] \[**irq\_list=** *i,j,...*\]

## DESCRIPTION

**ibmtr\_cs** is the low-level Card Services driver for the IBM Token Ring network adapter and a few very similar cards.  When this driver is attached to a card, it allocates the next available token ring interface (**tr0**..**tr#**). This device name will be reported in the kernel log file, and passed on to [**cardmgr**(8)](/cardmgr/8.md).

Due to awkward design of the kernel ibmtr driver, the shared packet memory for these cards must be mapped to a memory address below 1MB or 0x100000.  The PCMCIA software will attempt to do this automatically, but the automatic algorithm may choose values that conflict with other system devices, so a manual override with the **srambase** parameter may be required.  The memory-mapped IO window generally will not be a problem.

## PARAMETERS

- **pc\_debug=***n*

  Selects the PCMCIA debugging level.  This parameter is only available if the module is compiled with debugging enabled.  A non-zero value enables debugging.

- **mmiobase=***n*

  Specifies a fixed address for the card's memory mapped IO window.  The default is to select any available memory window.

- **srambase=***n*

  Specifies a fixed address for the card's shared packet memory.  The default is to select any available window below 1MB.

- **ringspeed=***n*

  Selects the network speed, in mb/sec.  Valid values are 4 or 16, and the default is 16.

## AUTHOR

David Hinds - dahinds@users.sourceforge.net

## SEE ALSO

[cardmgr(8)](/cardmgr/8.md), [pcmcia(5)](/pcmcia/5.md), [ifport(8)](/ifport/8.md).