RtReadPortBufferUshort
RtReadPortBufferUlong
RtReadPortBuffer* calls copy data from an I/O port to a buffer until the buffer has been filled using a number of bytes that you specify for each read operation.
Syntax
Copy
VOID RtReadPortBufferUchar(
[in] PUCHAR PortAddress,
[in] PUCHAR pBuffer,
[in] ULONG Count
);
VOID RtReadPortBufferUshort(
[in] PUSHORT PortAddress,
[in] PUSHORT pBuffer,
[in] ULONG Count
);
VOID RtReadPortBufferUlong(
[in] PULONG PortAddress,
[in] PULONG pBuffer,
[in] ULONG Count
);Parameters
[in] PortAddress
A Port I/O address cast as a pointer to the type of data being read.
[in] pBuffer
A pointer to a buffer.
[in] Count
The number of bytes to be read at one time. Acceptable values are 1, 2, and 4.
Remarks
RtReadPortBufferUchar, RtReadPortBufferUshort, and RtReadPortBufferUlong read data from an I/O port to a buffer, 1, 2, or 4 bytes at a time, until the buffer is full.
Requirements
| Minimum supported version | Header | Library |
|---|---|---|
|
wRTOS 1.0 SDK |
RtApi.h |
RtApi.lib (Windows), Startup.lib (RTSS) |
See Also:
