Documentation

This is a draft page currently used to make notes to myself

Hardware

Software

Kernel 2.6.x configuration

Arcnet

Make sure the the kernel supports arcnet, arcnet_raw and the com20020 chipset:

CONFIG_ARCNET=m
CONFIG_ARCNET_RAW=m
CONFIG_ARCNET_COM20020=m
CONFIG_ARCNET_COM20020_PCI=m

Load the com20020-pci with the appropriate options by creating a file like /etc/modprobe.d/robot:

options com20020-pci backplane=1 clockm=3

The file /etc/modules should contain the following lines:

# arcnet: load arcnet related modules for pa10
arcnet
com20020
com20020-pci
arc-rawmode

After booting the machine, the kernel or dmesg should report something like:

arcnet: v3.93 BETA 2000/04/29 - by Avery Pennarun et al.
arcnet: COM20020 chipset support (by David Woodhouse et al.)
arcnet: COM20020 PCI support
PCI: Found IRQ 10 for device 0000:02:0c.0
 arc%d: Contemporary Controls
 arc%d: PCI COM20020: station 55h found at A800h, IRQ 10.
 arc%d: Using backplane mode.
 arc%d: Using CKP 64 - data rate 10 Mb/s.
arcnet: raw mode (`r') encapsulation support loaded.

Afterwards you can bring up the Arcnet device as root:

marvin:~# ifconfig arc0 up

or let it be done by a startup script.

Important configuration files

kernel 2.4 and 2.6 TODO: upload the following files

  • /etc/init.d/arcnet
  • /etc/modules
  • /etc/X11/xorg.conf

kernel 2.4 specific

kernel 2.6 specific