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 static ssize_t _show_index(struct device *dev, struct device_attribute *attr, 27 char *buf) 28 { 29 return sprintf(buf, "%d\n", dev_to_rdev(dev)->idx); 30 } 31 32 static ssize_t _show_permaddr(struct device *dev, 33 struct device_attribute *attr, 34 char *buf) 35 { 36 unsigned char *addr = dev_to_rdev(dev)->wiphy.perm_addr; 37 38 return sprintf(buf, "%.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n", 39 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); 40 } 41 42 static struct device_attribute ieee80211_dev_attrs[] = { 43 __ATTR(index, S_IRUGO, _show_index, NULL), 44 __ATTR(macaddress, S_IRUGO, _show_permaddr, NULL), 45 {} 46 }; 47 48 static void wiphy_dev_release(struct device *dev) 49 { 50 struct cfg80211_registered_device *rdev = dev_to_rdev(dev); 51 52 cfg80211_dev_free(rdev); 53 } 54 55 #ifdef CONFIG_HOTPLUG 56 static int wiphy_uevent(struct device *dev, struct kobj_uevent_env *env) 57 { 58 /* TODO, we probably need stuff here */ 59 return 0; 60 } 61 #endif 62 63 struct class ieee80211_class = { 64 .name = "ieee80211", 65 .owner = THIS_MODULE, 66 .dev_release = wiphy_dev_release, 67 .dev_attrs = ieee80211_dev_attrs, 68 #ifdef CONFIG_HOTPLUG 69 .dev_uevent = wiphy_uevent, 70 #endif 71 }; 72 73 int wiphy_sysfs_init(void) 74 { 75 return class_register(&ieee80211_class); 76 } 77 78 void wiphy_sysfs_exit(void) 79 { 80 class_unregister(&ieee80211_class); 81 } 82