Mercurial > yakumo_izuru > aya
diff vendor/golang.org/x/sys/unix/dev_freebsd.go @ 66:787b5ee0289d draft
Use vendored modules
Signed-off-by: Izuru Yakumo <yakumo.izuru@chaotic.ninja>
author | yakumo.izuru |
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date | Sun, 23 Jul 2023 13:18:53 +0000 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/vendor/golang.org/x/sys/unix/dev_freebsd.go Sun Jul 23 13:18:53 2023 +0000 @@ -0,0 +1,30 @@ +// Copyright 2017 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Functions to access/create device major and minor numbers matching the +// encoding used in FreeBSD's sys/types.h header. +// +// The information below is extracted and adapted from sys/types.h: +// +// Minor gives a cookie instead of an index since in order to avoid changing the +// meanings of bits 0-15 or wasting time and space shifting bits 16-31 for +// devices that don't use them. + +package unix + +// Major returns the major component of a FreeBSD device number. +func Major(dev uint64) uint32 { + return uint32((dev >> 8) & 0xff) +} + +// Minor returns the minor component of a FreeBSD device number. +func Minor(dev uint64) uint32 { + return uint32(dev & 0xffff00ff) +} + +// Mkdev returns a FreeBSD device number generated from the given major and +// minor components. +func Mkdev(major, minor uint32) uint64 { + return (uint64(major) << 8) | uint64(minor) +}