--- zzzz-none-000/linux-2.6.32.61/drivers/usb/serial/usb-serial.c	2013-06-10 09:43:48.000000000 +0000
+++ ar9-7330-650/linux-2.6.32.61/drivers/usb/serial/usb-serial.c	2013-02-11 16:39:19.000000000 +0000
@@ -61,6 +61,7 @@
    drivers depend on it.
 */
 
+static ushort maxSize = 0;
 static int debug;
 /* initially all NULL */
 static struct usb_serial *serial_table[SERIAL_TTY_MINORS];
@@ -954,7 +955,7 @@
 			dev_err(&interface->dev, "No free urbs available\n");
 			goto probe_error;
 		}
-		buffer_size = le16_to_cpu(endpoint->wMaxPacketSize);
+		buffer_size = (endpoint->wMaxPacketSize > maxSize) ? endpoint->wMaxPacketSize : maxSize;
 		port->bulk_in_size = buffer_size;
 		port->bulk_in_endpointAddress = endpoint->bEndpointAddress;
 		port->bulk_in_buffer = kmalloc(buffer_size, GFP_KERNEL);
@@ -1158,7 +1159,7 @@
 				 * driver's port_remove method is called.
 				 */
 				if (!port->dev.driver) {
-					int rc;
+					int rc __maybe_unused__;
 
 					port->dev.driver =
 							&serial->type->driver;
@@ -1407,3 +1408,5 @@
 
 module_param(debug, bool, S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(debug, "Debug enabled or not");
+module_param(maxSize, ushort,0);
+MODULE_PARM_DESC(maxSize,"User specified USB endpoint size");