sysfs.h

来自「linux 内核源代码」· C头文件 代码 · 共 27 行

/*
 *  linux/drivers/mmc/core/sysfs.h
 *
 *  Copyright (C) 2003 Russell King, All Rights Reserved.
 *  Copyright 2007 Pierre Ossman
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */
#ifndef _MMC_CORE_SYSFS_H
#define _MMC_CORE_SYSFS_H

#define MMC_ATTR_FN(name, fmt, args...)					\
static ssize_t mmc_##name##_show (struct device *dev, struct device_attribute *attr, char *buf)	\
{									\
	struct mmc_card *card = container_of(dev, struct mmc_card, dev);\
	return sprintf(buf, fmt, args);					\
}

#define MMC_ATTR_RO(name) __ATTR(name, S_IRUGO, mmc_##name##_show, NULL)

int mmc_add_attrs(struct mmc_card *card, struct device_attribute *attrs);
void mmc_remove_attrs(struct mmc_card *card, struct device_attribute *attrs);

#endif