On 2010-04-08, Anssi Saari <[email protected]> wrote:
> It seems to me also that RTS is always on after the port has been
> opened. I didn't dig out my voltmeter or anything to check this,
> though.
IIRC, that's generally true: RTS and DTR are both set to "on" by the
tty layer's open() handler _if_ the device's useage count was 0. If
you open an already open port, then the RTS and DTR lines are left
alone.
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