Category: DOS kernel
Flags: Undocumented function

INT 2F - DRIVER.SYS support - EXECUTE DEVICE DRIVER REQUEST

	AX = 0802h
	ES:BX -> device driver request header (see #02597)
Return: request header updated as per requested operation
	STACK:	WORD	original flags from INT call (left by RETF in device
			  driver, at least in DOS 5.0-6.22)
Notes:	supported by DR DOS 5.0
	DOS 3.2 executes this function on any AL value from 02h through F7h;
	  DOS 4.0+ executes this function on AL=02h and AL=04h-F7h
	the command codes (see #02595) and structures described below apply
	  to all drivers which support the appropriate commands; this call is
	  just one of a number of ways in which a device driver request may
	  be invoked
	supported by Novell DOS 7
SeeAlso: AX=0800h,AX=0801h,AX=0803h,AX=1510h,INT 21/AH=52h,INT 21/AH=99h
SeeAlso: INT 21/AH=9Ah