> In which OpenBSD file do I define the major number for devices (both > regular and pseudo-device)? I have searched in several sources, and > the closest answer was for NetBSD, which says that major numbers are > in /usr/src/sys/conf/majors. But I have not found this file in OpenBSD > sources.
Noone builds new block devices anymore (in OpenBSD, we instead write drivers which hide behind the scsi subsystem, since this is more flexible). As for strictly character devices, these are inserted per-architecture into the cdevsw[] arrays in arch/ARCH/ARCH/conf.c. At the same time, /usr/src/etc/etc.ARCH/MAKEDEV* have to be modified to create the device nodes. There is no need to keep the major numbers in sync between different architectures. Actually because of many historical reasons, it is impossible.
