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USRobotics modem RedHat - Linux Setup, Configuration & Administration

Hi gurus, I am new to Linux and am trying to make a PCI modem work in Red Hat. I read that I need to find under windows what IRQ the modem is in along with the UART and I/O numbers. I was only able to find the IQR that was 18. I went to Linux as root, looked in /proc/pci but no device was under IRQ 18. Even more when I tried setserial /dev/ttyS3 irq 18 autoconfig it dind't accept my parameters. I chose ttyS3 because in windows the modem was in COM4 and I read that it corresponds ...

  1. #1

    Default USRobotics modem RedHat

    Hi gurus,

    I am new to Linux and am trying to make a PCI modem work in Red Hat.
    I read that I need to find under windows what IRQ the modem is in along with
    the UART and I/O numbers. I was only able to find the IQR that was 18.

    I went to Linux as root, looked in /proc/pci but no device was under IRQ 18.
    Even more when I tried
    setserial /dev/ttyS3 irq 18 autoconfig
    it dind't accept my parameters. I chose ttyS3 because in windows the modem
    was in COM4 and I read that it corresponds to ttyS3 in linux. Since it
    didn't accept 18 I used 5 because it was the only PCI device that looked
    like
    a modem. I passed through.
    then I made the link,
    rm -f /dev/modem
    ln -s /dev/modem

    Then I tried to dial with kppp, /sbin/ifup ppp0, and from Network devices in
    the X-window but none work. They give the modem as activated, but never
    dials up. If I run ifconfig I get some data for ppp0 meaning that it is
    running, but it never dials up.......grgrgrggr

    What can I do? I am totally lost. The modem is a USRobotics V.56kb fax
    modem.

    Thanks for your help.

    Ricardo.



    Ricardo Verdugo Guest

  2. #2

    Default Re: USRobotics modem RedHat

    Ricardo Verdugo wrote:
    > Hi gurus,
    >
    > I am new to Linux and am trying to make a PCI modem work in Red Hat.
    > I read that I need to find under windows what IRQ the modem is in
    > along with the UART and I/O numbers. I was only able to find the IQR
    > that was 18.
    >
    > I went to Linux as root, looked in /proc/pci but no device was under
    > IRQ 18. Even more when I tried setserial /dev/ttyS3 irq 18 autoconfig
    > it dind't accept my parameters. I chose ttyS3 because in windows the
    > modem was in COM4 and I read that it corresponds to ttyS3 in linux.
    > Since it didn't accept 18 I used 5 because it was the only PCI device
    > that looked like a modem. I passed through. then I made the link, rm
    > -f /dev/modem ln -s /dev/modem
    >
    > Then I tried to dial with kppp, /sbin/ifup ppp0, and from Network
    > devices in the X-window but none work. They give the modem as
    > activated, but never dials up. If I run ifconfig I get some data for
    > ppp0 meaning that it is running, but it never dials
    > up.......grgrgrggr
    >
    > What can I do? I am totally lost. The modem is a USRobotics V.56kb
    > fax modem.
    >
    Which USR PCI modem? Most PCI modems are the brain-damaged WinModems
    that are a lot of trouble to make work, if you can make them work at all.

    The only problem I have had with modems on Red Hat is that most of their
    tools assume you have a link in /dev named /dev/modem that points to the
    proper device, and yet they never make such a link. With the ISA modems,
    I just stick one in to /dev/ttyS1 (on my machine). I.e.,

    ln -s /dev/ttyS1 /dev/modem

    First thing to do is to read the user doentation that comes with your
    modem, if any. It should tell you how to configure the thing. Many
    modems have jumpers to set device address and IRQ. At least the ISA ones
    do. AFAIK, the PCI ones do not need that. How do PCI modems come up
    anyway? They sure do not use an RS-232 connector.

    I have a USR 5610B "56K* Performance Pro Modem" PCI modem that should
    work with Linux, but the computer it goes in does not work yet (no
    motherboard, no processors, no memory, little things like that), so I
    cannot tell you first hand.

    --
    .~. Jean-David Beyer Registered Linux User 85642.
    /V\ Registered Machine 73926.
    /( )\ Shrewsbury, New Jersey [url]http://counter.li.org[/url]
    ^^-^^ 6:35am up 18 days, 16:01, 2 users, load average: 2.30, 2.19, 2.12

    Jean-David Beyer Guest

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