StorPortWriteRegisterUlong routine

The StorPortWriteRegisterUlong routine transfers a ULONG value to the indicated HBA register address.

Syntax

STORPORT_API VOID StorPortWriteRegisterUlong(
  _In_  PVOID HwDeviceExtension,
  _In_  PULONG Register,
  _In_  ULONG Value
);

Parameters

HwDeviceExtension [in]

A pointer to the hardware device extension. This is a per HBA storage area that the port driver allocates and initializes on behalf of the miniport driver. Miniport drivers usually store HBA-specific information in this extension, such as the state of the HBA and the mapped access ranges for the HBA. This area is available to the miniport driver immediately after the miniport driver calls StorPortInitialize. The port driver frees this memory when it removes the device.

Register [in]

Pointer to the register. The given Register must be in a mapped memory space range returned by StorPortGetDeviceBase.

Value [in]

Specifies the ULONG value to be written to the HBA's register.

Return value

None

Requirements

See also

ScsiPortWriteRegisterUlong

Send comments about this topic to Microsoft

Build date: 5/17/2013