Enables a driver to access memory-mapped registers in the EFI system memory space.\r
Or, Enables a driver to access registers in the EFI CPU I/O space.\r
\r
- @param This A pointer to the EFI_CPU_IO_PROTOCOL instance.\r
- @param Width Signifies the width of the I/O or Memory operation.\r
- @param Address The base address of the I/O or Memoryoperation.\r
- @param Count The number of I/O or Memory operations to perform.\r
+ @param[in] This A pointer to the EFI_CPU_IO_PROTOCOL instance.\r
+ @param[in] Width Signifies the width of the I/O or Memory operation.\r
+ @param[in] Address The base address of the I/O or Memoryoperation.\r
+ @param[in] Count The number of I/O or Memory operations to perform.\r
The number of bytes moved is Width size * Count, starting at Address.\r
- @param Buffer For read operations, the destination buffer to store the results.\r
+ @param[in, out] Buffer For read operations, the destination buffer to store the results.\r
For write operations, the source buffer from which to write data.\r
\r
@retval EFI_SUCCESS The data was read from or written to the EFI system.\r