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
);
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.
[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.
Return value
None
Requirements
Requirement | Value |
---|---|
Minimum supported client | Windows 8.1 |
Target Platform | Universal |
Minimum UMDF version | 2.0 |
Header | wdfhwaccess.h |