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WDF_READ_PORT_UCHAR function (wdfhwaccess.h)
[Applies to UMDF only]
The WDF_READ_PORT_UCHAR function reads a byte from the specified port address.
Syntax
UCHAR WDF_READ_PORT_UCHAR(
[in] WDFDEVICE Device,
[in] PUCHAR Port
);
Parameters
[in] Device
A handle to a framework device object.
[in] Port
Specifies the port address, which must be a mapped memory range in I/O space.
Return value
WDF_READ_PORT_UCHAR returns the byte that is read from the specified port address.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 8.1 |
| Target Platform | Universal |
| Minimum UMDF version | 2.0 |
| Header | wdfhwaccess.h |
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