vendor/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/mknod.go

   1 // +build !windows
   2
   3 package system
   4
   5 import (
   6         "syscall"
   7 )
   8
   9 // Mknod creates a filesystem node (file, device special file or named pipe) named path
  10 // with attributes specified by mode and dev.
  11 func Mknod(path string, mode uint32, dev int) error {
  12         return syscall.Mknod(path, mode, dev)
  13 }
  14
  15 // Mkdev is used to build the value of linux devices (in /dev/) which specifies major
  16 // and minor number of the newly created device special file.
  17 // Linux device nodes are a bit weird due to backwards compat with 16 bit device nodes.
  18 // They are, from low to high: the lower 8 bits of the minor, then 12 bits of the major,
  19 // then the top 12 bits of the minor.
  20 func Mkdev(major int64, minor int64) uint32 {
  21         return uint32(((minor & 0xfff00) << 12) | ((major & 0xfff) << 8) | (minor & 0xff))
  22 }