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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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