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Hi All, When barcode read connectde to PC device node is created as /dev/input/by-id/usb-C40037802-event-kbd. I tried to read data fropm this and it is given junk value. Please can any ...
  1. 06-10-2009 #1
    ellappan
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    how to read keyboad device node directly

    Hi All,

    When barcode read connectde to PC device node is created as

    /dev/input/by-id/usb-C40037802-event-kbd.

    I tried to read data fropm this and it is given junk value.

    Please can any one give idea to read keyboad device node directly?

    Thanks in advance..
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  2. 06-11-2009 #2
    Rubberman
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    Have you tried to open /dev/stdin?
    Sometimes, real fast is almost as good as real time.
    Just remember, Semper Gumbi - always be flexible!
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  3. 06-12-2009 #3
    ellappan
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    Hi,

    Thanks for your reply... Yes I tried ..but the probelm is if i use stdin it will work but we can read the input only from the active window...if i move to some other application at the same time if i read barcode then it will fail
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  4. 06-12-2009 #4
    Rubberman
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    One of the reasons you get "junk" when you connect to the raw usb device is that it hasn't been "massaged", so there is likely a bunch of data there that is usb related. You will probably need a driver module for this device, or have to write one yourself. What is the make/model of the scanner? Also, it might be that the sane driver (generic scanner support for Linux) will work for you. Have you tried that?
    Sometimes, real fast is almost as good as real time.
    Just remember, Semper Gumbi - always be flexible!
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