RE: /dev/ttyS2 and /dev/ttyS3

From: Brian J. McCarthy (xsmfrqw.enslahfi@canon.com)
Date: Thu Feb 03 2000 - 15:42:39 EET

  • Next message: Brian J. McCarthy: "RE: /dev/ttyS2 and /dev/ttyS3"

    I've created the following init file:

    [root@gateway /proc]# cat /etc/rc.d/rc.serial
    SETSERIAL=/bin/setserial
    echo "Configuring serial ports...."
    #
    ${SETSERIAL} /dev/ttyS0 uart 16550a port 0x3f0 irq 4 ^fourport
    ${SETSERIAL} /dev/ttyS1 uart 16550a port 0x2f0 irq 3 ^fourport
    ${SETSERIAL} /dev/ttyS2 uart 16550a port 0x3e0 irq 10 ^fourport
    ${SETSERIAL} /dev/ttyS3 uart 16550a port 0x2e0 irq 10 ^fourport
    #
    echo "done"

    This produces:

    [root@gateway /root]# setserial -gav /dev/ttyS?
    /dev/ttyS0, Line 0, UART: 16550A, Port: 0x03f0, IRQ: 4
            Baud_base: 115200, close_delay: 50, divisor: 0
            closing_wait: 3000, closing_wait2: infinte
            Flags: spd_normal skip_test

    /dev/ttyS1, Line 1, UART: 16550A, Port: 0x02f0, IRQ: 3
            Baud_base: 115200, close_delay: 50, divisor: 0
            closing_wait: 3000, closing_wait2: infinte
            Flags: spd_normal skip_test

    /dev/ttyS2, Line 2, UART: 16550A, Port: 0x03e0, IRQ: 10
            Baud_base: 115200, close_delay: 50, divisor: 0
            closing_wait: 3000, closing_wait2: infinte
            Flags: spd_normal skip_test

    /dev/ttyS3, Line 3, UART: 16550A, Port: 0x02e0, IRQ: 10
            Baud_base: 115200, close_delay: 50, divisor: 0
            closing_wait: 3000, closing_wait2: infinte
            Flags: spd_normal

    But aprsd and other apps still cannot use any ports except ttyS0. Below is
    the output from ioports.

    [root@gateway /proc]# cat ioports
    0000-001f : dma1
    0020-003f : pic1
    0040-005f : timer
    0060-006f : keyboard
    0080-008f : dma page reg
    00a0-00bf : pic2
    00c0-00df : dma2
    00f0-00ff : fpu
    01f0-01f7 : ide0
    02e0-02e7 : serial(set)
    02f0-02f7 : serial(set)
    03c0-03df : vga+
    03e0-03e7 : serial(set)
    03f6-03f6 : ide0
    ec80-ecff : eth1
    ef80-ef9f : Intel Speedo3 Ethernet
    ffa0-ffa7 : ide0
    ffa8-ffaf : ide1
    [root@gateway /proc]#

    Brian McCarthy
    N7TUQ

    -----Original Message-----
    From: terhi.victor@logonet.com
    [mailto:cquw@tiki.ne.jp]On Behalf Of Thorsten
    Kranzkowski
    Sent: Wednesday, February 02, 2000 7:14 PM
    To: vtds@thegreensheet.com
    Subject: Re: /dev/ttyS2 and /dev/ttyS3

    On Wed, Feb 02, 2000 at 06:36:18PM -0700, Brian J. McCarthy wrote:
    > I have tried to get these serial line added to my Linux machine (RH 6.1
    with
    > 2.2.14). I do not understand what the trouble is.
    >
    > Output from setserial
    > =========================================================
    [...]
    > /dev/ttyS2: Device or resource busy
    > /dev/ttyS3: Device or resource busy
    >
    >
    > =========================================================
    >
    >
    > The card I am adding is http://www.siig.com/io/i_o_expander_4s.html.
    >
    > I am setting port A to 3E8/IRQ4 and port B to 2E8/IRQ3. The unboard
    Serial
    > ports are 3F8/IRQ4 and 2F8/IRQ3. This should be the defaul config. Will
    > interrupt sharing work accross different cards? What could I do to enable

    Both PCI: yes
    onboard ISA: no, never
    both ISA: yes, with hardware modification
    one ISA, other PCI: no

    BUT: I think this has nothing to do with that error-message. Can you post
    'cat /proc/ioports' output?

    > these serial ports ??
    >
    >
    > Brian McCarthy
    > N7TUQ
    >

    Thorsten 

    --
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|
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