WDF_READ_PORT_UCHAR function

[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

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.

Return value

WDF_READ_PORT_UCHAR returns the byte that is read from the specified port address.

Requirements

Minimum support

Windows 8.1

Minimum UMDF version

2.0

Header

Wdfhwaccess.h

 

 

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