Compiling Custom Linux Kernel for Beaglebone Black Industrial 6.18.16-bone23

[jtbrooks]

am335xussetpm user space device driver

and c program to test it out /* setpm.c Compile: gcc setpm.c -o setpm */ #include <stdio.h> #include <stdlib.h> #include <fcntl.h> #include <unistd.h> #include <errno.h> #define DEVICE "/dev/am335xussetpm" #define MEM_START 0x44E10800 #define MEM_END 0x44E109B4 int main(int argc, char *argv[]) { if (argc != 3) { fprintf(stderr, "setpm: Usage: %s <hex address> <hex value>\n", argv[0]); return 1; } unsigned long addr = strtoul(argv[1], NULL, 16); unsigned cha…