// wdfhwaccess.h
UCHAR WDF_READ_PORT_UCHAR(
[in] WDFDEVICE Device,
[in] PUCHAR Port
);
View the official Windows Driver Kit DDI referenceNo description available.
[Applies to UMDF only]
The WDF_READ_PORT_UCHAR function reads a byte from the specified port address.
Device [in]A handle to a framework device object.
Port [in]Specifies the port address, which must be a mapped memory range in I/O space.
WDF_READ_PORT_UCHAR returns the byte that is read from the specified port address.