READ_PORT_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_PORT_USHORT function reads a USHORT value from the specified port address.
Syntax
USHORT READ_PORT_USHORT(
[in] IWDFDevice3 *pDevice,
[in] PUSHORT Port
);
Parameters
[in] pDevice
Specifies a pointer to the IWDFDevice3 interface for the device object of the device to access.
[in] Port
Specifies the port address, which must be a mapped memory range in I/O space.
Return value
READ_PORT_USHORT returns the USHORT value that is read from the specified port address.
Remarks
For more information, see Reading and Writing to Device Registers in UMDF 1.x Drivers.
Requirements
Requirement | Value |
---|---|
End of support | Unavailable in UMDF 2.0 and later. |
Target Platform | Desktop |
Minimum UMDF version | 1.11 |
Header | wudfddi_hwaccess.h |