On 12/8/20 4:24 PM, Ben Widawsky wrote: > + > +#define CXL_MEM_QUERY_COMMANDS _IOR('C', 1, struct cxl_mem_query_commands) Hi, I could have missed it, but IOCTL major "numbers" (like 'C') should be listed in Documentation/userspace-api/ioctl/ioctl-number.rst. thanks. -- ~Randy