target/linux/generic/patches-2.6.38/821-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 @@ -912,7 +913,8 @@ int usb_serial_probe(struct usb_interfac
  12                         goto probe_error;
  13                 }
  14                 buffer_size = max_t(int, serial->type->bulk_in_size,
  15 -                               le16_to_cpu(endpoint->wMaxPacketSize));
  16 +                                        min_t(int, le16_to_cpu(endpoint->wMaxPacketSize),
  17 +                                                   maxSize));
  18                 port->bulk_in_size = buffer_size;
  19                 port->bulk_in_endpointAddress = endpoint->bEndpointAddress;
  20                 port->bulk_in_buffer = kmalloc(buffer_size, GFP_KERNEL);
  21 @@ -1391,3 +1393,5 @@ MODULE_LICENSE("GPL");
  22
  23  module_param(debug, bool, S_IRUGO | S_IWUSR);
  24  MODULE_PARM_DESC(debug, "Debug enabled or not");
  25 +module_param(maxSize, ushort,0);
  26 +MODULE_PARM_DESC(maxSize,"User specified USB endpoint size");