usb-serial: Use ftdi_sio driver for RATOC REX-USB60F

[karo-tx-linux.git] / drivers / usb / serial / ch341.c

diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c
index 6b252ceb39a828b69b29b78b2dfdfdf572a88bbd..ba28fdc9ccd2f589a2ec5038616dc91795fd9757 100644 (file)
--- a/drivers/usb/serial/ch341.c
+++ b/drivers/usb/serial/ch341.c
@@ -130,7 +130,7 @@ static int ch341_get_status(struct usb_device *dev)
                return -ENOMEM;
 
        r = ch341_control_in(dev, 0x95, 0x0706, 0, buffer, size);
-       if ( r < 0)
+       if (r < 0)
                goto out;
 
        /* Not having the datasheet for the CH341, we ignore the bytes returned
@@ -272,9 +272,6 @@ static void ch341_set_termios(struct usb_serial_port *port,
 
        dbg("ch341_set_termios()");
 
-       if (!tty || !tty->termios)
-               return;
-
        baud_rate = tty_get_baud_rate(tty);
 
        switch (baud_rate) {
@@ -299,6 +296,11 @@ static void ch341_set_termios(struct usb_serial_port *port,
         * (cflag & PARENB) : parity {NONE, EVEN, ODD}
         * (cflag & CSTOPB) : stop bits [1, 2]
         */
+
+        /* Copy back the old hardware settings */
+        tty_termios_copy_hw(tty->termios, old_termios);
+        /* And re-encode with the new baud */
+        tty_encode_baud_rate(tty, baud_rate, baud_rate);
 }
 
 static struct usb_driver ch341_driver = {
@@ -316,9 +318,6 @@ static struct usb_serial_driver ch341_device = {
        },
        .id_table         = id_table,
        .usb_driver       = &ch341_driver,
-       .num_interrupt_in = NUM_DONT_CARE,
-       .num_bulk_in      = 1,
-       .num_bulk_out     = 1,
        .num_ports        = 1,
        .open             = ch341_open,
        .set_termios      = ch341_set_termios,