udev - where is my device?

From: Randall Smith (randall_at_tnr.cc)
Date: 07/12/04

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    Date: Sun, 11 Jul 2004 21:52:30 -0500
To: debian-user@lists.debian.org

    I'm connecting my samsung A620 phone to my computer via USB to use the
    internet access. When I connect it, the cdc_acm module loads. From
    what I've gathered from searching is that it should create a device
    called ttyACM0 in the device directory. I can't find it.

    I did get it to work temporarily by doing this:

    ls /sys/bus/usb-serial/devices/
    ttyUSB0 ttyUSB1 ttyUSB2 ttyUSB3

    cd /dev
    mkdir usb
    mknod /dev/usb/ttyUSB0 c 188 0
    mknod /dev/usb/ttyUSB1 c 188 1
    mknod /dev/usb/ttyUSB2 c 188 2
    mknod /dev/usb/ttyUSB3 c 188 3

    I did cat /dev/usb/ttyUSB# until it did not say "no device ..."
    Then I put the device in my pon script and I was able to connect. But
    when I rebooted, all of the devices disappeared.

    I think that when I plug in the phone, udev should create a device
    somewhere. Where does it create it?

    Randall 

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