1 /*
2 * This file provides /sys/class/ieee80211/<wiphy name>/
3 * and some default attributes.
4 *
5 * Copyright 2005-2006 Jiri Benc <jbenc@suse.cz>
6 * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
7 *
8 * This file is GPLv2 as found in COPYING.
9 */
10
11 #include <linux/device.h>
12 #include <linux/module.h>
13 #include <linux/netdevice.h>
14 #include <linux/nl80211.h>
15 #include <linux/rtnetlink.h>
16 #include <net/cfg80211.h>
17 #include "sysfs.h"
18 #include "core.h"
19
dev_to_rdev(struct device * dev)20 static inline struct cfg80211_registered_device *dev_to_rdev(
21 struct device *dev)
22 {
23 return container_of(dev, struct cfg80211_registered_device, wiphy.dev);
24 }
25
26 #define SHOW_FMT(name, fmt, member) \
27 static ssize_t name ## _show(struct device *dev, \
28 struct device_attribute *attr, \
29 char *buf) \
30 { \
31 return sprintf(buf, fmt "\n", dev_to_rdev(dev)->member); \
32 }
33
34 SHOW_FMT(index, "%d", idx);
35 SHOW_FMT(macaddress, "%pM", wiphy.perm_addr);
36
37 static struct device_attribute ieee80211_dev_attrs[] = {
38 __ATTR_RO(index),
39 __ATTR_RO(macaddress),
40 {}
41 };
42
wiphy_dev_release(struct device * dev)43 static void wiphy_dev_release(struct device *dev)
44 {
45 struct cfg80211_registered_device *rdev = dev_to_rdev(dev);
46
47 cfg80211_dev_free(rdev);
48 }
49
50 #ifdef CONFIG_HOTPLUG
wiphy_uevent(struct device * dev,struct kobj_uevent_env * env)51 static int wiphy_uevent(struct device *dev, struct kobj_uevent_env *env)
52 {
53 /* TODO, we probably need stuff here */
54 return 0;
55 }
56 #endif
57
58 struct class ieee80211_class = {
59 .name = "ieee80211",
60 .owner = THIS_MODULE,
61 .dev_release = wiphy_dev_release,
62 .dev_attrs = ieee80211_dev_attrs,
63 #ifdef CONFIG_HOTPLUG
64 .dev_uevent = wiphy_uevent,
65 #endif
66 };
67
wiphy_sysfs_init(void)68 int wiphy_sysfs_init(void)
69 {
70 return class_register(&ieee80211_class);
71 }
72
wiphy_sysfs_exit(void)73 void wiphy_sysfs_exit(void)
74 {
75 class_unregister(&ieee80211_class);
76 }
77