| 1 | --- a/drivers/usb/serial/usbserial.c |
| 2 | +++ b/drivers/usb/serial/usbserial.c |
| 3 | @@ -331,6 +331,7 @@ static void generic_shutdown (struct us |
| 4 | #ifdef CONFIG_USB_SERIAL_GENERIC |
| 5 | static __u16 vendor = 0x05f9; |
| 6 | static __u16 product = 0xffff; |
| 7 | +static int maxSize = 0; |
| 8 | |
| 9 | static struct usb_device_id generic_device_ids[2]; /* Initially all zeroes. */ |
| 10 | |
| 11 | @@ -1557,7 +1558,11 @@ static void * usb_serial_probe(struct us |
| 12 | err("No free urbs available"); |
| 13 | goto probe_error; |
| 14 | } |
| 15 | +#ifdef CONFIG_USB_SERIAL_GENERIC |
| 16 | + buffer_size = (endpoint->wMaxPacketSize > maxSize) ? endpoint->wMaxPacketSize : maxSize; |
| 17 | +#else |
| 18 | buffer_size = endpoint->wMaxPacketSize; |
| 19 | +#endif |
| 20 | port->bulk_in_endpointAddress = endpoint->bEndpointAddress; |
| 21 | port->bulk_in_buffer = kmalloc (buffer_size, GFP_KERNEL); |
| 22 | if (!port->bulk_in_buffer) { |
| 23 | @@ -1921,4 +1926,7 @@ MODULE_PARM_DESC(vendor, "User specified |
| 24 | |
| 25 | MODULE_PARM(product, "h"); |
| 26 | MODULE_PARM_DESC(product, "User specified USB idProduct"); |
| 27 | + |
| 28 | +MODULE_PARM(maxSize,"i"); |
| 29 | +MODULE_PARM_DESC(maxSize,"User specified USB endpoint size"); |
| 30 | #endif |
| 31 | |
