diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /kernel/ksysfs.c |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'kernel/ksysfs.c')
-rw-r--r-- | kernel/ksysfs.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/kernel/ksysfs.c b/kernel/ksysfs.c new file mode 100644 index 000000000000..1f064a63f8cf --- /dev/null +++ b/kernel/ksysfs.c | |||
@@ -0,0 +1,57 @@ | |||
1 | /* | ||
2 | * kernel/ksysfs.c - sysfs attributes in /sys/kernel, which | ||
3 | * are not related to any other subsystem | ||
4 | * | ||
5 | * Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org> | ||
6 | * | ||
7 | * This file is release under the GPLv2 | ||
8 | * | ||
9 | */ | ||
10 | |||
11 | #include <linux/config.h> | ||
12 | #include <linux/kobject.h> | ||
13 | #include <linux/string.h> | ||
14 | #include <linux/sysfs.h> | ||
15 | #include <linux/module.h> | ||
16 | #include <linux/init.h> | ||
17 | |||
18 | #define KERNEL_ATTR_RO(_name) \ | ||
19 | static struct subsys_attribute _name##_attr = __ATTR_RO(_name) | ||
20 | |||
21 | #define KERNEL_ATTR_RW(_name) \ | ||
22 | static struct subsys_attribute _name##_attr = \ | ||
23 | __ATTR(_name, 0644, _name##_show, _name##_store) | ||
24 | |||
25 | #ifdef CONFIG_HOTPLUG | ||
26 | static ssize_t hotplug_seqnum_show(struct subsystem *subsys, char *page) | ||
27 | { | ||
28 | return sprintf(page, "%llu\n", (unsigned long long)hotplug_seqnum); | ||
29 | } | ||
30 | KERNEL_ATTR_RO(hotplug_seqnum); | ||
31 | #endif | ||
32 | |||
33 | decl_subsys(kernel, NULL, NULL); | ||
34 | EXPORT_SYMBOL_GPL(kernel_subsys); | ||
35 | |||
36 | static struct attribute * kernel_attrs[] = { | ||
37 | #ifdef CONFIG_HOTPLUG | ||
38 | &hotplug_seqnum_attr.attr, | ||
39 | #endif | ||
40 | NULL | ||
41 | }; | ||
42 | |||
43 | static struct attribute_group kernel_attr_group = { | ||
44 | .attrs = kernel_attrs, | ||
45 | }; | ||
46 | |||
47 | static int __init ksysfs_init(void) | ||
48 | { | ||
49 | int error = subsystem_register(&kernel_subsys); | ||
50 | if (!error) | ||
51 | error = sysfs_create_group(&kernel_subsys.kset.kobj, | ||
52 | &kernel_attr_group); | ||
53 | |||
54 | return error; | ||
55 | } | ||
56 | |||
57 | core_initcall(ksysfs_init); | ||