From 9631595a253e62a2be7476f99a23ade786829d5f Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Tue, 29 Dec 2015 13:36:13 +0100 Subject: [PATCH] USB: mxu11x0: fix modem-control handling on B0-transitions Make sure to raise DTR and RTS on transitions from B0 and leave the other bits unchanged. Signed-off-by: Johan Hovold --- drivers/usb/serial/mxu11x0.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/serial/mxu11x0.c b/drivers/usb/serial/mxu11x0.c index c6c4776997fc..c408cd7b4dc6 100644 --- a/drivers/usb/serial/mxu11x0.c +++ b/drivers/usb/serial/mxu11x0.c @@ -595,7 +595,7 @@ static void mxu1_set_termios(struct tty_struct *tty, if (C_BAUD(tty) == B0) mcr &= ~(MXU1_MCR_DTR | MXU1_MCR_RTS); else if (old_termios && (old_termios->c_cflag & CBAUD) == B0) - mcr |= ~(MXU1_MCR_DTR | MXU1_MCR_RTS); + mcr |= MXU1_MCR_DTR | MXU1_MCR_RTS; status = mxu1_set_mcr(port, mcr); if (status) -- 2.30.2