SuSE GmbH

SuSE Support Database

Title: Configuring a PCI-modem

----------

Mainpage o Searchform o History o Versions o Categories o Contents
Deutsch

----------

Configuring a PCI-modem

Applies to

Kernel: Versions since 2.2.x

Symptom:

You want to setup your PCI modem, you've tried using different slots but you receive the following error:
no modem found.

This article covers the setup of the hardware only, not the configuration of software to connect to another computer.

Cause:

The IRQs und I/O-addresses of the serial devices in Linux use default values, which are used by almost all ISA-cards. In many PCs this prevents a resource conflict with other cards.
But the IRQs und I/O-addresses of PCI-cards are distributed by the BIOS and don't match the traditional values.

Solution:

  1. Determine the actual values, which are given by the BIOS to the serial devices:

  2. Setup the modem with YaST, under the menu system administration ->integrate hardware into system -> modem configuration

    The following have influence upon and may change the settings of these variables:

    If You are not sure if you have one of these, choose /dev/ttyS2 to avoid conflicts.

  3. Now adjust the interrupt and I/O-values in Linux:
    Use the command setserial to setup the Linux-configuration of the serial device:
    setserial /dev/ttySx irq <irq> port <port>.

    For example: If Your modem uses to IRQ 5 and I/O-port 0x220 You should type

    setserial /dev/ttyS2 irq 5 port 0x220
    
    If this command is appended to your file /sbin/init.d/boot.local it is automatically executed at boot time.

    Alternativly You can adjust your /sbin/init.d/serial

    More information about setserial could be found in the man page (man setserial).

  4. You can type wvdialconf /dev/null to test the configuration. This program tests all ttySx devices of Your computer.
An alternative to the use of setserial is to set the IRQ to a fixed value using Your BIOS setup. This will work only, if the real and standard value of the I/O-port coincide.

----------

See also:

----------

Keywords: PPP, PCI, MODEM, PCI-MODEM, WVDIAL, MINICOM

----------

Categories: Network

----------

Mainpage o Searchform o History o Versions o Categories o Contents
Deutsch

----------

SDB-hoe_pci_modem, Copyright SuSE GmbH, Nuremberg, Germany - Version: 06. Oct 1999
SuSE GmbH - Last generated: 26. Oct 1999 14:20:15 by wimer with sdb_gen 1.00.0