X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fusb%2Fserial%2Fch341.c;h=1f7c86bd8297c85e21a72451c5abed5e647a38a2;hb=e6b027a398bcfbb8897353a88a2edfcc97fd604d;hp=6b252ceb39a828b69b29b78b2dfdfdf572a88bbd;hpb=0c326331c8b107abc0a160e8899d749150b8f76a;p=linux-2.6

diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c
index 6b252ceb39..1f7c86bd82 100644
--- a/drivers/usb/serial/ch341.c
+++ b/drivers/usb/serial/ch341.c
@@ -28,6 +28,7 @@ static int debug;
 
 static struct usb_device_id id_table [] = {
 	{ USB_DEVICE(0x4348, 0x5523) },
+	{ USB_DEVICE(0x1a86, 0x7523) },
 	{ },
 };
 MODULE_DEVICE_TABLE(usb, id_table);
@@ -130,7 +131,7 @@ 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 +273,6 @@ 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 +297,11 @@ 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 +319,6 @@ 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,