WDF_READ_PORT_BUFFER_UCHAR function (wdfhwaccess.h)

[Applies to UMDF only]

The WDF_READ_PORT_BUFFER_UCHAR function reads a number of bytes from the specified port address into a buffer.

Syntax

void WDF_READ_PORT_BUFFER_UCHAR(
  [in]  WDFDEVICE Device,
  [in]  PUCHAR    Port,
  [out] PUCHAR    Buffer,
  [in]  ULONG     Count
);

[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.

[out] Buffer

A pointer to a buffer into which an array of UCHAR values is read.

[in] Count

Specifies the number of bytes to be read into the buffer.

None