// SPDX-License-Identifier: GPL-2.0
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/*
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* sysfs.c - MediaLB sysfs information
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*
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* Copyright (C) 2015, Microchip Technology Germany II GmbH & Co. KG
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*/
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/* Author: Andrey Shvetsov <andrey.shvetsov@k2l.de> */
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include <linux/kernel.h>
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#include "sysfs.h"
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#include <linux/device.h>
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static ssize_t state_show(struct device *dev, struct device_attribute *attr,
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char *buf)
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{
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bool state = dim2_sysfs_get_state_cb();
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return sprintf(buf, "%s\n", state ? "locked" : "");
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}
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static DEVICE_ATTR_RO(state);
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static struct attribute *dev_attrs[] = {
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&dev_attr_state.attr,
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NULL,
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};
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static struct attribute_group dev_attr_group = {
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.attrs = dev_attrs,
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};
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static const struct attribute_group *dev_attr_groups[] = {
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&dev_attr_group,
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NULL,
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};
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int dim2_sysfs_probe(struct device *dev)
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{
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dev->groups = dev_attr_groups;
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return device_register(dev);
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}
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void dim2_sysfs_destroy(struct device *dev)
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{
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device_unregister(dev);
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}
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