patch-2.4.19 linux-2.4.19/drivers/usb/serial/pl2303.c

• Lines: 39
• Date: Fri Aug 2 17:39:45 2002
• Orig file: linux-2.4.18/drivers/usb/serial/pl2303.c
• Orig date: Wed Oct 10 23:42:47 2001

diff -urN linux-2.4.18/drivers/usb/serial/pl2303.c linux-2.4.19/drivers/usb/serial/pl2303.c
@@ -140,6 +140,7 @@
 
 struct pl2303_private { 
 	u8 line_control;
+	u8 termios_initialized;
 };
 
 
@@ -217,13 +218,19 @@
 	int baud;
 	int i;
 
-	dbg (__FUNCTION__ " -  port %d", port->number);
+	dbg (__FUNCTION__ " -  port %d, initialized = %d", port->number, 
+	     ((struct pl2303_private *) port->private)->termios_initialized);
 
 	if ((!port->tty) || (!port->tty->termios)) {
 		dbg(__FUNCTION__" - no tty structures");
 		return;
 	}
 
+	if (!(((struct pl2303_private *)port->private)->termios_initialized)) {
+		*(port->tty->termios) = tty_std_termios;
+		port->tty->termios->c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL;
+		((struct pl2303_private *) port->private)->termios_initialized = 1;
+	}
 	cflag = port->tty->termios->c_cflag;
 	/* check that they really want us to change something */
 	if (old_termios) {
@@ -400,9 +407,6 @@
 		SOUP (VENDOR_WRITE_REQUEST_TYPE, VENDOR_WRITE_REQUEST, 2, 4);
 
 		/* Setup termios */
-		*(port->tty->termios) = tty_std_termios;
-		port->tty->termios->c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL;
-
 		pl2303_set_termios (port, &tmp_termios);
 
 		//FIXME: need to assert RTS and DTR if CRTSCTS off