VTDAPI_Get_Version

include vtdapi.inc

; Obtain the entry point address in VTDAPI_Addr
mov bx, SEG RequestStruc
mov es, bx
mov bx, OFFSET RequestStruc
mov ax, VTDAPI_Get_Version
call VTDAPI_Addr
 

Retrieves the version number of the driver, the shortest interrupt period supported by the hardware, the longest interrupt period supported by the driver. Uses Flags, EAX, EDI.

• Returns TRUE in AX and RequestStruc is filled in with information about the driver if successful; otherwise returns FALSE.

RequestStruc

Address of Request structure which has the following form:

Request Struc
    DAPI_Version       dd
    VTDAPI_Min_Period  dd
    VTDAPI_Max_Period  dd
Request Ends