target/linux/generic-2.6/patches-2.6.22/801-usb_serial_endpoint_size.patch

   1 Index: linux-2.6.22.19/drivers/usb/serial/usb-serial.c
   2 ===================================================================
   3 --- linux-2.6.22.19.orig/drivers/usb/serial/usb-serial.c
   4 +++ linux-2.6.22.19/drivers/usb/serial/usb-serial.c
   5 @@ -56,6 +56,7 @@ static struct usb_driver usb_serial_driv
   6     drivers depend on it.
   7  */
   8
   9 +static ushort maxSize = 0;
  10  static int debug;
  11  static struct usb_serial *serial_table[SERIAL_TTY_MINORS];     /* initially all NULL */
  12  static spinlock_t table_lock;
  13 @@ -864,7 +865,7 @@ int usb_serial_probe(struct usb_interfac
  14                         dev_err(&interface->dev, "No free urbs available\n");
  15                         goto probe_error;
  16                 }
  17 -               buffer_size = le16_to_cpu(endpoint->wMaxPacketSize);
  18 +               buffer_size = (endpoint->wMaxPacketSize > maxSize) ? endpoint->wMaxPacketSize : maxSize;
  19                 port->bulk_in_size = buffer_size;
  20                 port->bulk_in_endpointAddress = endpoint->bEndpointAddress;
  21                 port->bulk_in_buffer = kmalloc (buffer_size, GFP_KERNEL);
  22 @@ -1245,3 +1246,5 @@ MODULE_LICENSE("GPL");
  23
  24  module_param(debug, bool, S_IRUGO | S_IWUSR);
  25  MODULE_PARM_DESC(debug, "Debug enabled or not");
  26 +module_param(maxSize, ushort,0);
  27 +MODULE_PARM_DESC(maxSize,"User specified USB endpoint size");