from ctypes import *

#http://www.ftdichip.com/Support/Documents/ProgramGuides/D2XX_Programmer%27s_Guide%28FT_000071%29.pdf
#http://docs.python.org/2/library/ctypes.html


FT_LIST_NUMBER_ONLY=c_uint(0x80000000)

#enum {
FT_OK = 0
#	FT_INVALID_HANDLE,
#	FT_DEVICE_NOT_FOUND,
#	FT_DEVICE_NOT_OPENED,
#	FT_IO_ERROR,
	# FT_INSUFFICIENT_RESOURCES,
	# FT_INVALID_PARAMETER,
	# FT_INVALID_BAUD_RATE,

	# FT_DEVICE_NOT_OPENED_FOR_ERASE,
	# FT_DEVICE_NOT_OPENED_FOR_WRITE,
	# FT_FAILED_TO_WRITE_DEVICE,
	# FT_EEPROM_READ_FAILED,
	# FT_EEPROM_WRITE_FAILED,
	# FT_EEPROM_ERASE_FAILED,
	# FT_EEPROM_NOT_PRESENT,
	# FT_EEPROM_NOT_PROGRAMMED,
	# FT_INVALID_ARGS,
	# FT_NOT_SUPPORTED,
	# FT_OTHER_ERROR,
	# FT_DEVICE_LIST_NOT_READY,
# };



if __name__ == "__main__":
	ftdll=windll.LoadLibrary("Driver FTDI\\i386\\ftd2xx.dll") 
	print(ftdll)
	numberofdev=c_uint()
	dummy=c_uint()
	handle=c_uint()
	buf="0x101010101010101010101010101010101010"
	ftdll.FT_ListDevices(byref(numberofdev),byref(dummy),FT_LIST_NUMBER_ONLY)
	print(numberofdev)
	print handle
	if numberofdev == 0:
		print "No device available"
	else:
		if ftdll.FT_Open(0,byref(handle)) == FT_OK:
			print handle
		
			if ftdll.FT_Write(handle, buf, len(buf), byref(dummy)) == FT_OK:
				print dummy,"bytes written"
			else:
				print "Can't write to device"
				
			
			ftdll.FT_Close(handle)
		else:
			print "Can't open device"