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 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 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 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 68 int wiphy_sysfs_init(void) 69 { 70 return class_register(&ieee80211_class); 71 } 72 73 void wiphy_sysfs_exit(void) 74 { 75 class_unregister(&ieee80211_class); 76 } 77