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authorMitja Felicijan <mitja.felicijan@gmail.com>2026-02-05 00:37:32 +0100
committerMitja Felicijan <mitja.felicijan@gmail.com>2026-02-05 00:37:32 +0100
commit6960aecc25400320adee1b8802a86839326e15b6 (patch)
tree334f7ca9491080a5e6f9a9747da77281c4958ba2 /vendor/golang.org/x/sys/unix/dev_freebsd.go
downloadhepi-6960aecc25400320adee1b8802a86839326e15b6.tar.gz
Engage!
Diffstat (limited to 'vendor/golang.org/x/sys/unix/dev_freebsd.go')
-rw-r--r--vendor/golang.org/x/sys/unix/dev_freebsd.go30
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diff --git a/vendor/golang.org/x/sys/unix/dev_freebsd.go b/vendor/golang.org/x/sys/unix/dev_freebsd.go
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1// Copyright 2017 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// Functions to access/create device major and minor numbers matching the
6// encoding used in FreeBSD's sys/types.h header.
7//
8// The information below is extracted and adapted from sys/types.h:
9//
10// Minor gives a cookie instead of an index since in order to avoid changing the
11// meanings of bits 0-15 or wasting time and space shifting bits 16-31 for
12// devices that don't use them.
13
14package unix
15
16// Major returns the major component of a FreeBSD device number.
17func Major(dev uint64) uint32 {
18 return uint32((dev >> 8) & 0xff)
19}
20
21// Minor returns the minor component of a FreeBSD device number.
22func Minor(dev uint64) uint32 {
23 return uint32(dev & 0xffff00ff)
24}
25
26// Mkdev returns a FreeBSD device number generated from the given major and
27// minor components.
28func Mkdev(major, minor uint32) uint64 {
29 return (uint64(major) << 8) | uint64(minor)
30}