--- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c @@ -58,6 +58,7 @@ drivers depend on it. */ +static ushort maxSize = 0; static int debug; static struct usb_serial *serial_table[SERIAL_TTY_MINORS]; /* initially all NULL */ static DEFINE_MUTEX(table_lock); @@ -894,7 +895,7 @@ 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); @@ -1306,3 +1307,5 @@ 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");