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