sending urb to usb device

From: Frank (nospam_at_nospam.net)
Date: 02/25/05

  • Next message: phil-news-nospam_at_ipal.net: "Re: shared libs" 
    Date: Fri, 25 Feb 2005 23:19:10 +0100

    Hi,

    For a week I'm trying to send a single URB to an USB device, but I can't
    manage to let it work. no matter how I try to get the urb structure
    filled correctly, usb_submit_urb returns with -EINVAL. The URB I try to
    send is for diagnosting the functions of the device. (leds on the device
    will blink for 5 seconds) Because I've tried many codes it's no good to
    post some here. I got
    http://wwwbode.cs.tum.edu/Par/arch/usb/usbdoc/node2.html as reference
    and builtin kernel modules as examples. Nevertheless I just can't
    manage it. Can anyone give me a simple example to send 1 URB?

    (PS. The USB device is not supported in linux and I've contacted the
    manufacturer how it works. They've told me to send an URB of 16 bytes
    data to the HID device, but as far I've understood URB's can't be send a
    received via the hiddev.)

    thank in advanced,

    Frank de Bot

  • Next message: phil-news-nospam_at_ipal.net: "Re: shared libs"

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