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    SubjectRe: SELECT() returns 1 But FIONREAD says (Input/output error)
    Robert Hancock wrote:

    > It's because you haven't done anything to handle the error which is
    > still persisting. Likely the only thing sane you can do in this case is
    > close the fd and try to reopen it later.
    >
    This seems to be true, but not for what you might think.

    It appears that if u plug the USB/serial device back into the usb-hub,
    the code creates a /dev/ttyUSB1 ( if you have not yet closed the
    disconnected /dev/ttyUSB0. ) When you do close /dev/ttyUSB0, then the
    device is erased from the /dev directory.

    Now /dev/ttyUSB1 is the device. And /dev/ttyUSB0 disappeared. This does
    not seem proper. As now the program has no idea or capability to re-open
    the GPS device.

    I have been informed that this was an approved kernel feature. Is this
    suppose to happen? Or was it an unintended consequence?
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