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  1. #1

    help getting 2 or modems working on RH9

    Hi guys, I am currently running RH9 (2.4.20-8 kernel) and am trying to get 2 (and in the future more then 2) dial up internal modems working at the same time but I'm having a bit of trouble...

    They are both modems based on the Intel 536EP chipset and are using the Intel supplied drivers (the modem manufacturer don't supply Linux drivers) and I can get either card working ok, but not both at the same time (i.e. I can install one and if I try and install the new one the old card is ignored). I am a bit of aLinux newbie so Im not sure if the ability to drive two modems at once is kernel dependent or if it relies on the drivers supplied, can anyone help?

    For a bit of background: this is to be used as a dial-in server which can accept multiple dial in connections at the same time.

    output of lspci if that helps:

    [root@smsdev /]# lspci
    00:00.0 Host bridge: Intel Corp. 440BX/ZX/DX - 82443BX/ZX/DX Host bridge (rev 03)
    00:01.0 PCI bridge: Intel Corp. 440BX/ZX/DX - 82443BX/ZX/DX AGP bridge (rev 03)
    00:07.0 ISA bridge: Intel Corp. 82371AB/EB/MB PIIX4 ISA (rev 02)
    00:07.1 IDE interface: Intel Corp. 82371AB/EB/MB PIIX4 IDE (rev 01)
    00:07.2 USB Controller: Intel Corp. 82371AB/EB/MB PIIX4 USB (rev 01)
    00:07.3 Bridge: Intel Corp. 82371AB/EB/MB PIIX4 ACPI (rev 02)
    00:0f.0 Communication controller: Intel Corp. 536EP Data Fax Modem
    00:10.0 Communication controller: Intel Corp. 536EP Data Fax Modem
    00:11.0 Ethernet controller: Intel Corp. 82557/8/9 [Ethernet Pro 100] (rev 05)
    01:00.0 VGA compatible controller: nVidia Corporation NV4 [RIVA TNT] (rev 04)
    [root@smsdev /]#

    Also if it turns out I will not be able to do this with internal modems, would it be possible to buy a pci serial card and install multiple external modems to each seperate physical COM port?

    Thanks in advance


  2. #2
    Super Moderator Roxoff's Avatar
    Join Date
    Aug 2005
    Nottingham, England
    As this is a USB modem, you could easily find that the sample drivers from Intel were never created with the intention of running more than one such modem at once.

    It should be possible for you to use a PCI servial card and standard external modems if you want to provide this, just check that the serial port card is compatible with Linux, and that all the serial ports work. A place I used to work at hosted dial-in to the lan using three or four modems which were originally hosted by the Linux server.
    Linux user #126863 - see

  3. #3

    no it's not a USB modem, it's just a standard internal PCI modem. I do have the drivers from Intel which I have played around with but I can't get more then one working so i might just have to search around for a serial PCI card and some external modems

    Thanks for your help

  4. $spacer_open

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