Access physical address on application layer
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void * get_io_base(unsigned int address, unsigned int size){ fd = open("/dev/mem", O_RDWR | O_SYNC); if (fd < 0 ) return NULL; phy_base =(void *) address; map_base = mmap(0, size, PROT_READ|PROT_WRITE, MAP_PRIVATE, fd, address); return map_base;}
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