kobject-example.c (552c69b36ebd966186573b9c7a286b390935cce1) kobject-example.c (5a242d8547bdc5802d1e1200a85e69afc3c2d74e)
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Sample kobject implementation
4 *
5 * Copyright (C) 2004-2007 Greg Kroah-Hartman <greg@kroah.com>
6 * Copyright (C) 2007 Novell Inc.
7 */
8#include <linux/kobject.h>

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23static int bar;
24
25/*
26 * The "foo" file where a static variable is read from and written to.
27 */
28static ssize_t foo_show(struct kobject *kobj, struct kobj_attribute *attr,
29 char *buf)
30{
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Sample kobject implementation
4 *
5 * Copyright (C) 2004-2007 Greg Kroah-Hartman <greg@kroah.com>
6 * Copyright (C) 2007 Novell Inc.
7 */
8#include <linux/kobject.h>

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23static int bar;
24
25/*
26 * The "foo" file where a static variable is read from and written to.
27 */
28static ssize_t foo_show(struct kobject *kobj, struct kobj_attribute *attr,
29 char *buf)
30{
31 return sprintf(buf, "%d\n", foo);
31 return sysfs_emit(buf, "%d\n", foo);
32}
33
34static ssize_t foo_store(struct kobject *kobj, struct kobj_attribute *attr,
35 const char *buf, size_t count)
36{
37 int ret;
38
39 ret = kstrtoint(buf, 10, &foo);

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55 char *buf)
56{
57 int var;
58
59 if (strcmp(attr->attr.name, "baz") == 0)
60 var = baz;
61 else
62 var = bar;
32}
33
34static ssize_t foo_store(struct kobject *kobj, struct kobj_attribute *attr,
35 const char *buf, size_t count)
36{
37 int ret;
38
39 ret = kstrtoint(buf, 10, &foo);

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55 char *buf)
56{
57 int var;
58
59 if (strcmp(attr->attr.name, "baz") == 0)
60 var = baz;
61 else
62 var = bar;
63 return sprintf(buf, "%d\n", var);
63 return sysfs_emit(buf, "%d\n", var);
64}
65
66static ssize_t b_store(struct kobject *kobj, struct kobj_attribute *attr,
67 const char *buf, size_t count)
68{
69 int var, ret;
70
71 ret = kstrtoint(buf, 10, &var);

--- 73 unchanged lines hidden --- 		64}
65
66static ssize_t b_store(struct kobject *kobj, struct kobj_attribute *attr,
67 const char *buf, size_t count)
68{
69 int var, ret;
70
71 ret = kstrtoint(buf, 10, &var);

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