USB: cdc-acm: only raise DTR on transitions from B0

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commit 4473d054ce upstream.

Make sure to only raise DTR on transitions from B0 in set_termios.

Also allow set_termios to be called from open with a termios_old of
NULL. Note that DTR will not be raised prematurely in this case.

Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>

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Johan Hovold 2014-11-05 18:41:59 +01:00 • committed by Luis Henriques

parent d8eb1f1fad

commit 58844b70cd

1 changed files with 3 additions and 2 deletions

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drivers/usb/class/cdc-acm.c

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