diff options
| -rw-r--r-- | drivers/usb/serial/pl2303.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 6ed33c7e53e2..1128e01525b1 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -622,8 +622,16 @@ static void pl2303_set_termios(struct tty_struct *tty, /* For reference buf[4]=1 is 1.5 stop bits */ /* For reference buf[4]=2 is 2 stop bits */ if (cflag & CSTOPB) { - buf[4] = 2; - dbg("%s - stop bits = 2", __func__); + /* NOTE: Comply with "real" UARTs / RS232: + * use 1.5 instead of 2 stop bits with 5 data bits + */ + if ((cflag & CSIZE) == CS5) { + buf[4] = 1; + dbg("%s - stop bits = 1.5", __func__); + } else { + buf[4] = 2; + dbg("%s - stop bits = 2", __func__); + } } else { buf[4] = 0; dbg("%s - stop bits = 1", __func__); |