Johan Hovold 8cce3bbfb4
USB: serial: cp210x: fix modem-control handling ...
The vendor request used to set the flow-control settings also sets the
state of the modem-control lines.
Add state variables to keep track of the modem-control lines to avoid
always asserting the lines whenever the flow-control settings are
updated.
This specifically also avoids asserting DTR/RTS when opening a port with
the line speed set to B0.
Signed-off-by: Johan Hovold <johan@kernel.org >
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8cce3bbfb4