WIENER, Plein & Baus GmbH
24
www.wiener-d.com
[in] Pointer to a structure storing parameters of the target XX-USB devices.
Return Values
On success, the function returns the handle to the target XX-USB device. A negative return
value indicates that the handle to a valid device could not be opened as a result of insufficient
privileges. It is recommended to retry in Superuser mode.
Remarks
While all xxusb functions rely on the libusb (
www.sourceforge.net
) functions while
communicating with XX-USB, xxusb_device_open and xxusb_handle_close are simply
macros creating aliases to usb_open and usb_close functions of the libusb library.
6.3 xxusb_device_close
The xxusb_device_close function closes the handle to the desired XX-USB device, obtained
by a xxusb_device_open call. This function is to be called upon termination of an XX-USB
session.
WORD xxusb_device_close{
USB_DEV_HANDLE
lpUSBDevice,
};
Parameters
lpUSBDevice
[in] Pointer to a variable containing the handle to be closed.
Return Values
Returns negative upon failure.
Remarks
While all xxusb functions rely on the libusb (
www.sourceforge.net
) functions while
communicating with XX-USB, xxusb_device_open and xxusb_handle_close are simply
macros creating aliases to usb_open and usb_close functions of the libusb library.
6.4 xxusb_reset_toggle
The xxusb_reset_toggle function toggles the reset state of the FPGA while XX-USB is in
programming mode – rotary selector set in one of four P* positions.
WORD xxusb_reset_toggle{
HANDLE
hDevice,
};
Parameters
