[PATCH RESEND 2/5] USB: serial: cp210x: Made sure SERIAL_XOFF_CONTINUE flag is clear.
From: Konstantin Shkolnyy
Date: Sun Apr 24 2016 - 13:06:22 EST
The CRTCTS flag code intended to clear the SERIAL_XOFF_CONTINUE flag, but
did it inconsistently. This change is non-functional for existing chips
because the driver never set the flag and it's clear by default.
Signed-off-by: Konstantin Shkolnyy <konstantin.shkolnyy@xxxxxxxxx>
---
drivers/usb/serial/cp210x.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index de1606f..ede5c52 100644
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -955,7 +955,6 @@ static void cp210x_set_termios(struct tty_struct *tty,
modem_ctl[0] &= ~0x7B;
modem_ctl[0] |= 0x09;
modem_ctl[4] = 0x80;
- modem_ctl[7] = 0;
dev_dbg(dev, "%s - flow control = CRTSCTS\n", __func__);
} else {
modem_ctl[0] &= ~0x7B;
@@ -963,6 +962,7 @@ static void cp210x_set_termios(struct tty_struct *tty,
modem_ctl[4] = 0x40;
dev_dbg(dev, "%s - flow control = NONE\n", __func__);
}
+ modem_ctl[7] = 0;
dev_dbg(dev, "%s - write modem controls = %02x .. .. .. %02x .. .. %02x\n",
__func__, modem_ctl[0], modem_ctl[4], modem_ctl[7]);
--
1.8.4.5