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Thread: Serial Port Disabled??

  1. #1
    Join Date
    Aug 2010
    Beans
    38

    Serial Port Disabled??

    Are serial ports disabled by default on Ubuntu?

    I have never used the serial ports(DB9) on my PC before. Now I wanted to use one for my arduino board but saw that the IDE displays only two ports which are my front USB ports. No mention of the Serial ports at the back of the CPU cabinet.

    'When I ran the command
    Code:
    dmesg | grep tty
    I got the following output:
    Code:
    [    0.000000] console [tty0] enabled
    [    0.245992] serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
    [    0.246213] serial8250: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A
    [    0.246858] 00:0a: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
    [    0.247093] 00:0b: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A
    Does anybody have an idea how to get my serial port to work?
    Last edited by mohitdaksh; September 8th, 2011 at 12:11 PM.

  2. #2
    Join Date
    Sep 2011
    Beans
    2

    Re: Serial Port Disabled??

    I'll be going through the same process soon for the same reason (setting up arduino). I found a few links searching the web (although I haven't tried using them yet).

    Here is one using a usb->serial adaptor

    http://blog.mypapit.net/2008/05/how-...in-ubuntu.html

    I don't know if it'll work for you (or me), but it's worth a shot.

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