did something

vendor/periph.io/x/host/v3/sysfs/doc.go

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+// Copyright 2016 The Periph Authors. All rights reserved.
+// Use of this source code is governed under the Apache License, Version 2.0
+// that can be found in the LICENSE file.
+
+// Package sysfs implements a sane library to interact with sysfs provided
+// hardware access.
+//
+// sysfs a virtual file system rooted at /sys/.
+//
+// This package also include drivers using devfs.
+//
+// https://www.kernel.org/doc/Documentation/filesystems/sysfs.txt
+package sysfs