tree 21a9b48b35f9f599b44aca5777777903405444c2
parent 308fee18e0f06215b47b54a2b254bfaf55527bdd
author Johan Hovold <jhovold@gmail.com> 1401125031 +0200
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1401228250 -0700

USB: cdc-acm: use tty-port dtr_rts

Add dtr_rts tty-port operation which implements proper DTR/RTS handling
(e.g. only lower DTR/RTS during shutdown if HUPCL is set).

Note that modem-control locking still needs to be added throughout the
driver.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>