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  1. #1
    Just Joined!
    Join Date
    Dec 2005

    Question Someone explain libusb locations

    What does the libusb location of a device depend on? My scanner alternates between being at 002:003 and 002:004, in between unplugging it to use a different USB device, even if I plug it back into the same USB port that it was in before (yes, I should have a hub).

    I have to specify that location in snapscan.conf, but what I changed it to last night isn't where the computer thinks it is this morning. (Even if I change snapscan.conf again to reflect the current location, I still get an I/O error.)

  2. #2
    Linux Enthusiast
    Join Date
    Apr 2004
    Hello again,

    You shouldn't need to specify the location of the USB device, sane will probe usb devices for scanners.

    To answer your question, I'm pretty sure its a simple increment, i.e. if device 003 is attached to hub 002 (002:003) the next device will be numbered 004 on that hub, even if it is the same device being removed and re-added.

    Hope that helps,

    To be good, you must first be bad. "Newbie" is a rank, not a slight.

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