READ_REGISTER_USHORT function (wudfddi_hwaccess.h)

[Warning: UMDF 2 is the latest version of UMDF and supersedes UMDF 1. All new UMDF drivers should be written using UMDF 2. No new features are being added to UMDF 1 and there is limited support for UMDF 1 on newer versions of Windows 10. Universal Windows drivers must use UMDF 2. For more info, see Getting Started with UMDF.]

The READ_REGISTER_USHORT function reads a USHORT value from the specified register address.


  IWDFDevice3 *pDevice,
  PUSHORT     Register



[in] Specifies a pointer to the IWDFDevice3 interface for the device object of the device to access.


[in] A pointer to the register address, which must be a mapped range in memory space.

Return value

READ_REGISTER_USHORT returns the USHORT value that is read from the specified port address.


For more information, see Reading and Writing to Device Registers in UMDF 1.x Drivers.


End of support Unavailable in UMDF 2.0 and later.
Target Platform Desktop
Minimum UMDF version 1.11
Header wudfddi_hwaccess.h