VC_WriteIOMemoryUSHORT(p, w)
The VC_WriteIOMemoryUSHORT macro writes an unsigned word into a device's mapped I/O memory space.
Parameters
p
Address of the mapped I/O memory location into which data is to be copied.
w
Unsigned word value to be written.
Return Value
None.
Comments
Kernel-mode video capture drivers typically use the VC_WriteIOMemoryUSHORT macro to write into a location within the frame buffer. Drivers can obtain the frame buffer's base address by calling VC_GetFrameBuffer.
Using the VC_WriteIOMemoryUSHORT macro to write into I/O space helps ensure driver portability across system platforms.