github.com/kaisenlinux/docker.io@v0.0.0-20230510090727-ea55db55fac7/engine/pkg/system/mknod.go (about)

     1  //go:build !windows
     2  // +build !windows
     3  
     4  package system // import "github.com/docker/docker/pkg/system"
     5  
     6  import (
     7  	"golang.org/x/sys/unix"
     8  )
     9  
    10  // Mkdev is used to build the value of linux devices (in /dev/) which specifies major
    11  // and minor number of the newly created device special file.
    12  // Linux device nodes are a bit weird due to backwards compat with 16 bit device nodes.
    13  // They are, from low to high: the lower 8 bits of the minor, then 12 bits of the major,
    14  // then the top 12 bits of the minor.
    15  func Mkdev(major int64, minor int64) uint32 {
    16  	return uint32(unix.Mkdev(uint32(major), uint32(minor)))
    17  }