target/linux/generic/patches-2.6.38/801-usb_serial_endpoint_size.patch

   1 --- a/drivers/usb/serial/usb-serial.c
   2 +++ b/drivers/usb/serial/usb-serial.c
   3 @@ -61,6 +61,7 @@ static struct usb_driver usb_serial_driv
   4     drivers depend on it.
   5  */
   6
   7 +static ushort maxSize = 0;
   8  static int debug;
   9  /* initially all NULL */
  10  static struct usb_serial *serial_table[SERIAL_TTY_MINORS];
  11 @@ -913,7 +914,7 @@ int usb_serial_probe(struct usb_interfac
  12                 }
  13                 buffer_size = serial->type->bulk_in_size;
  14                 if (!buffer_size)
  15 -                       buffer_size = le16_to_cpu(endpoint->wMaxPacketSize);
  16 +                       buffer_size = (endpoint->wMaxPacketSize > maxSize) ? endpoint->wMaxPacketSize : maxSize;
  17                 port->bulk_in_size = buffer_size;
  18                 port->bulk_in_endpointAddress = endpoint->bEndpointAddress;
  19                 port->bulk_in_buffer = kmalloc(buffer_size, GFP_KERNEL);
  20 @@ -1392,3 +1393,5 @@ MODULE_LICENSE("GPL");
  21
  22  module_param(debug, bool, S_IRUGO | S_IWUSR);
  23  MODULE_PARM_DESC(debug, "Debug enabled or not");
  24 +module_param(maxSize, ushort,0);
  25 +MODULE_PARM_DESC(maxSize,"User specified USB endpoint size");