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path: root/drivers/usb/serial/ftdi_sio.c
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Diffstat (limited to 'drivers/usb/serial/ftdi_sio.c')
-rw-r--r--drivers/usb/serial/ftdi_sio.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 050211afc07e..79dd1ae195e5 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -2005,6 +2005,8 @@ static void ftdi_set_termios(struct tty_struct *tty,
"urb failed to set to rts/cts flow control\n");
}
+ /* raise DTR/RTS */
+ set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
} else {
/*
* Xon/Xoff code
@@ -2052,6 +2054,8 @@ static void ftdi_set_termios(struct tty_struct *tty,
}
}
+ /* lower DTR/RTS */
+ clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
}
return;
}