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hi all, Im currently using kernel version 2.6.33.3 and i have recompiled. I have bought a serialboard(PCIe 7800) from addi-data and im not sure whether it is properly installed. I'm ...
  1. #1
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    how do i extend the range of registered serial interface?

    hi all,

    Im currently using kernel version 2.6.33.3 and i have recompiled. I have bought a serialboard(PCIe 7800) from addi-data and im not sure whether it is properly installed. I'm here to seek advise.

    when i type in "cat/proctty/drivers", the listing contain a line:

    ...
    serial /dev/ttyS 4 64-95 serial
    ...

    when i type in "lspci",

    03:00.0 System peripheral:ADDI-DATA GmbH Unknown Device 7023
    03:00.1 Serial Controller:ADDI-DATA GmbH Unknown Device 7013

    from my card distrubutor, 7013 means it is APCIe-7800. meaning my system identified the board correctly. why is there an "Unknown" word in the line?


    when i type "dmesg", it only shows i have 4 ports,
    ...
    Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
    ...

    and i dun have the identification of the PCI slot in which the board is plugged from these "dmesg" command which are usually type MMIO.

    Regards.

  2. #2
    Linux Guru Rubberman's Avatar
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    It means that there is no driver installed for this board, even though lspci's scan sees it. The /dev/ttySN entries are for the recognized serial ports. The line you find in /proc/tty/drivers basically means that the default serial port driver for 8250/16550 UARTS. I assume that you only find the 4 default serial ports in /dev - /dev/ttyS0 thru /dev/ttyS3?
    Sometimes, real fast is almost as good as real time.
    Just remember, Semper Gumbi - always be flexible!

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