INT 2F - CATC USB4DOS Host Controller - EXECUTE USBsee Universal Serial Bus REQUEST
	AX = BB00h
	BX = 0002h
	CX:DX -> request packet (see #04097)
Return: AX = destroyed


Format of USB4DOS Host Controller request packet:
Offset	Size	Description	(Table 04097)
 00h	WORD	command number
 02h	WORD	(ret) major status
 04h	WORD	(ret) minor status
 06h	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	-> callback function
 0Ah 25 BYTEs	data for command (varies by command number)
 23h 12 BYTEs	reserved for future use