1// Copyright 2018 The Go Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style 3// license that can be found in the LICENSE file. 4 5// +build aix 6// +build ppc 7 8// Functions to access/create device major and minor numbers matching the 9// encoding used by AIX. 10 11package unix 12 13// Major returns the major component of a Linux device number. 14func Major(dev uint64) uint32 { 15 return uint32((dev >> 16) & 0xffff) 16} 17 18// Minor returns the minor component of a Linux device number. 19func Minor(dev uint64) uint32 { 20 return uint32(dev & 0xffff) 21} 22 23// Mkdev returns a Linux device number generated from the given major and minor 24// components. 25func Mkdev(major, minor uint32) uint64 { 26 return uint64(((major) << 16) | (minor)) 27} 28