|comedi_config(8)||System Manager's Manual||comedi_config(8)|
NAME¶comedi_config - COMEDI configuration utility
SYNOPSIS¶comedi_config [OPTION]... /dev/comediN driver [param1[,param2]...]
comedi_config [OPTION]... -r /dev/comediN
DESCRIPTION¶comedi_config is used to configure comedi drivers. You must have comedi support compiled into your kernel or loaded as a separate module in order to use this utility. Each control and measurement device is associated with a particular comedi device file /dev/comediN, where N is 0,1,2,3, etc. comedi_config allows you to associate a particular driver and device with a comedi device file, and also configure driver parameters for the particular device.
comedi_config can be used with optional parameters which are driver dependent. Parameters are specified by comma-delimited list of integers. The integers may be expressed as decimal, hexidecimal (starting with 0x) or octal (stating with 0). In addition, a parameter may be left blank, indicating 0. PCI-based devices typically require no parameters, although some allow you to specify the bus and slot of the card to configure as the first two parameters. ISA-based devices typically use the first and second parameters to indicate I/O base address and interrupt level.
OPTIONS¶comedi_config recognizes the following options:
- -q, --quiet
- Don't print output while running.
- -v, --verbose
- Print verbose output while running.
- -V, --version
- Print version number and exit.
- -r, --remove
- Remove (unconfigure) previously configured device.
- --read-buffer size
- Set read buffer size to size kilobytes. The default size is 64k.
- --write-buffer size
- Set write buffer size to size kilobytes. The default size is 64k.
- --subdevice-buffer num,size[,num,size]...
- Set subdevice num buffer size to size kilobytes. More than one num,size pair may be specified, and the option may be used several times.
- -i, --init-data, --init-data0 file
- Upload initialization data (typically firmware) from file to board.
- --init-data1 file
- --init-data2 file
- --init-data3 file
- Some drivers require more than one file for initialization data. Use these options to specify additional initialization data files. See the driver-specific documentation for further details.
CONFIGURATION FILE¶[This section has not been implemented yet.]
A list of device configurations can be put into the file /etc/comedi.conf. This file takes the form:
<device> <driver> <param1>,<param2>,...
These configurations will be read and performed when the switch -a is used. This is potentially useful when run from an initialization script.
EXAMPLES¶A National Instruments PCI-MIO E series board can be configured to use /dev/comedi0 using the command:
comedi_config /dev/comedi0 ni_pcimio
A National Instruments AT-MIO E series board can be configured to use /dev/comedi3 using the command:
comedi_config /dev/comedi3 ni_atmio 0x220,3
This tells the driver that the board is configured for I/O base 0x220 and IRQ 3.