March 22, 2021
1:27 a.m.
Hello all
From what I understand, to map io ports to virtual memory, we should use request_region, ioport_map/unmap and ioread/write functions.
These are for architectures having input, output machine instructions like x86, x86_64. And the return address of ioport_map is physical address. Is my understanding correct? Thanks! Chan Kim