from ulink.c:134
struct ulink
{
struct libusb_context *libusb_ctx;
struct libusb_device_handle *usb_device_handle;
enum ulink_type type;
unsigned int ep_in;
unsigned int ep_out;
int delay_scan_in;
int delay_scan_out;
int delay_scan_io;
int delay_clock_tck;
int delay_clock_tms;
int commands_in_queue;
struct ulink_cmd *queue_start;
struct ulink_cmd *queue_end;
};