IOCTL_VIDEO_QUERY_PUBLIC_ACCESS_RANGES IOCTL

Returns an array, possibly with one element, of address ranges used to program the adapter registers or ports directly. Support for this nonmodal request is optional.

Major Code

IRP_MJ_DEVICE_CONTROL

Input Buffer

None

Output Buffer

The miniport driver returns an array of VIDEO_PUBLIC_ACCESS_RANGES in the VRP OutputBuffer.

Status Block

If the miniport driver returns an address range or ranges, it sets the Information member of the STATUS_BLOCK structure to sizeof(VIDEO_PUBLIC_ACCESS_RANGES); otherwise, the miniport driver sets this member to zero.

Requirements

   
Header ntddvdeo.h

See Also

STATUS_BLOCK

VIDEO_PUBLIC_ACCESS_RANGES