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Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* Bluetooth HCI driver model support. */ |
2 | ||
1da177e4 | 3 | #include <linux/kernel.h> |
5a0e3ad6 | 4 | #include <linux/slab.h> |
1da177e4 | 5 | #include <linux/init.h> |
ca325f69 | 6 | #include <linux/debugfs.h> |
d4612cb8 | 7 | #include <linux/seq_file.h> |
1da177e4 LT |
8 | |
9 | #include <net/bluetooth/bluetooth.h> | |
10 | #include <net/bluetooth/hci_core.h> | |
11 | ||
aef7d97c | 12 | static struct class *bt_class; |
90855d7b | 13 | |
ca325f69 MH |
14 | struct dentry *bt_debugfs = NULL; |
15 | EXPORT_SYMBOL_GPL(bt_debugfs); | |
16 | ||
90855d7b MH |
17 | static inline char *link_typetostr(int type) |
18 | { | |
19 | switch (type) { | |
20 | case ACL_LINK: | |
21 | return "ACL"; | |
22 | case SCO_LINK: | |
23 | return "SCO"; | |
24 | case ESCO_LINK: | |
25 | return "eSCO"; | |
26 | default: | |
27 | return "UNKNOWN"; | |
28 | } | |
29 | } | |
30 | ||
31 | static ssize_t show_link_type(struct device *dev, struct device_attribute *attr, char *buf) | |
32 | { | |
33 | struct hci_conn *conn = dev_get_drvdata(dev); | |
34 | return sprintf(buf, "%s\n", link_typetostr(conn->type)); | |
35 | } | |
36 | ||
37 | static ssize_t show_link_address(struct device *dev, struct device_attribute *attr, char *buf) | |
38 | { | |
39 | struct hci_conn *conn = dev_get_drvdata(dev); | |
d6b2eb2f | 40 | return sprintf(buf, "%s\n", batostr(&conn->dst)); |
90855d7b MH |
41 | } |
42 | ||
43 | static ssize_t show_link_features(struct device *dev, struct device_attribute *attr, char *buf) | |
44 | { | |
45 | struct hci_conn *conn = dev_get_drvdata(dev); | |
46 | ||
47 | return sprintf(buf, "0x%02x%02x%02x%02x%02x%02x%02x%02x\n", | |
48 | conn->features[0], conn->features[1], | |
49 | conn->features[2], conn->features[3], | |
50 | conn->features[4], conn->features[5], | |
51 | conn->features[6], conn->features[7]); | |
52 | } | |
53 | ||
54 | #define LINK_ATTR(_name,_mode,_show,_store) \ | |
55 | struct device_attribute link_attr_##_name = __ATTR(_name,_mode,_show,_store) | |
56 | ||
57 | static LINK_ATTR(type, S_IRUGO, show_link_type, NULL); | |
58 | static LINK_ATTR(address, S_IRUGO, show_link_address, NULL); | |
59 | static LINK_ATTR(features, S_IRUGO, show_link_features, NULL); | |
60 | ||
61 | static struct attribute *bt_link_attrs[] = { | |
62 | &link_attr_type.attr, | |
63 | &link_attr_address.attr, | |
64 | &link_attr_features.attr, | |
65 | NULL | |
66 | }; | |
67 | ||
68 | static struct attribute_group bt_link_group = { | |
69 | .attrs = bt_link_attrs, | |
70 | }; | |
71 | ||
a4dbd674 | 72 | static const struct attribute_group *bt_link_groups[] = { |
90855d7b MH |
73 | &bt_link_group, |
74 | NULL | |
75 | }; | |
76 | ||
77 | static void bt_link_release(struct device *dev) | |
78 | { | |
79 | void *data = dev_get_drvdata(dev); | |
80 | kfree(data); | |
81 | } | |
82 | ||
83 | static struct device_type bt_link = { | |
84 | .name = "link", | |
85 | .groups = bt_link_groups, | |
86 | .release = bt_link_release, | |
87 | }; | |
88 | ||
89 | static void add_conn(struct work_struct *work) | |
90 | { | |
f3784d83 | 91 | struct hci_conn *conn = container_of(work, struct hci_conn, work_add); |
457ca7bb | 92 | struct hci_dev *hdev = conn->hdev; |
90855d7b | 93 | |
457ca7bb MH |
94 | dev_set_name(&conn->dev, "%s:%d", hdev->name, conn->handle); |
95 | ||
f74c77cb DY |
96 | dev_set_drvdata(&conn->dev, conn); |
97 | ||
90855d7b MH |
98 | if (device_add(&conn->dev) < 0) { |
99 | BT_ERR("Failed to register connection device"); | |
100 | return; | |
101 | } | |
384943ec MH |
102 | |
103 | hci_dev_hold(hdev); | |
90855d7b MH |
104 | } |
105 | ||
90855d7b MH |
106 | /* |
107 | * The rfcomm tty device will possibly retain even when conn | |
108 | * is down, and sysfs doesn't support move zombie device, | |
109 | * so we should move the device before conn device is destroyed. | |
110 | */ | |
111 | static int __match_tty(struct device *dev, void *data) | |
112 | { | |
fb28ad35 | 113 | return !strncmp(dev_name(dev), "rfcomm", 6); |
90855d7b MH |
114 | } |
115 | ||
116 | static void del_conn(struct work_struct *work) | |
117 | { | |
f3784d83 | 118 | struct hci_conn *conn = container_of(work, struct hci_conn, work_del); |
90855d7b MH |
119 | struct hci_dev *hdev = conn->hdev; |
120 | ||
a67e899c MH |
121 | if (!device_is_registered(&conn->dev)) |
122 | return; | |
f3784d83 | 123 | |
90855d7b MH |
124 | while (1) { |
125 | struct device *dev; | |
126 | ||
127 | dev = device_find_child(&conn->dev, NULL, __match_tty); | |
128 | if (!dev) | |
129 | break; | |
ffa6a705 | 130 | device_move(dev, NULL, DPM_ORDER_DEV_LAST); |
90855d7b MH |
131 | put_device(dev); |
132 | } | |
133 | ||
134 | device_del(&conn->dev); | |
135 | put_device(&conn->dev); | |
384943ec | 136 | |
90855d7b MH |
137 | hci_dev_put(hdev); |
138 | } | |
139 | ||
a67e899c | 140 | void hci_conn_init_sysfs(struct hci_conn *conn) |
90855d7b | 141 | { |
a67e899c MH |
142 | struct hci_dev *hdev = conn->hdev; |
143 | ||
90855d7b MH |
144 | BT_DBG("conn %p", conn); |
145 | ||
a67e899c MH |
146 | conn->dev.type = &bt_link; |
147 | conn->dev.class = bt_class; | |
148 | conn->dev.parent = &hdev->dev; | |
149 | ||
a67e899c MH |
150 | device_initialize(&conn->dev); |
151 | ||
152 | INIT_WORK(&conn->work_add, add_conn); | |
f3784d83 | 153 | INIT_WORK(&conn->work_del, del_conn); |
a67e899c MH |
154 | } |
155 | ||
156 | void hci_conn_add_sysfs(struct hci_conn *conn) | |
157 | { | |
a67e899c MH |
158 | BT_DBG("conn %p", conn); |
159 | ||
f48fd9c8 | 160 | queue_work(conn->hdev->workqueue, &conn->work_add); |
a67e899c MH |
161 | } |
162 | ||
163 | void hci_conn_del_sysfs(struct hci_conn *conn) | |
164 | { | |
165 | BT_DBG("conn %p", conn); | |
90855d7b | 166 | |
f48fd9c8 | 167 | queue_work(conn->hdev->workqueue, &conn->work_del); |
90855d7b MH |
168 | } |
169 | ||
c13854ce | 170 | static inline char *host_bustostr(int bus) |
1da177e4 | 171 | { |
c13854ce | 172 | switch (bus) { |
0ac53939 | 173 | case HCI_VIRTUAL: |
4d0eb004 MH |
174 | return "VIRTUAL"; |
175 | case HCI_USB: | |
176 | return "USB"; | |
177 | case HCI_PCCARD: | |
178 | return "PCCARD"; | |
179 | case HCI_UART: | |
180 | return "UART"; | |
181 | case HCI_RS232: | |
182 | return "RS232"; | |
183 | case HCI_PCI: | |
184 | return "PCI"; | |
0ac53939 MH |
185 | case HCI_SDIO: |
186 | return "SDIO"; | |
4d0eb004 MH |
187 | default: |
188 | return "UNKNOWN"; | |
189 | } | |
1da177e4 LT |
190 | } |
191 | ||
943da25d MH |
192 | static inline char *host_typetostr(int type) |
193 | { | |
194 | switch (type) { | |
195 | case HCI_BREDR: | |
196 | return "BR/EDR"; | |
8f1e1742 DV |
197 | case HCI_AMP: |
198 | return "AMP"; | |
943da25d MH |
199 | default: |
200 | return "UNKNOWN"; | |
201 | } | |
202 | } | |
203 | ||
c13854ce | 204 | static ssize_t show_bus(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 | 205 | { |
a91f2e39 | 206 | struct hci_dev *hdev = dev_get_drvdata(dev); |
c13854ce | 207 | return sprintf(buf, "%s\n", host_bustostr(hdev->bus)); |
1da177e4 LT |
208 | } |
209 | ||
943da25d MH |
210 | static ssize_t show_type(struct device *dev, struct device_attribute *attr, char *buf) |
211 | { | |
212 | struct hci_dev *hdev = dev_get_drvdata(dev); | |
213 | return sprintf(buf, "%s\n", host_typetostr(hdev->dev_type)); | |
214 | } | |
215 | ||
a9de9248 MH |
216 | static ssize_t show_name(struct device *dev, struct device_attribute *attr, char *buf) |
217 | { | |
218 | struct hci_dev *hdev = dev_get_drvdata(dev); | |
219 | char name[249]; | |
220 | int i; | |
221 | ||
222 | for (i = 0; i < 248; i++) | |
223 | name[i] = hdev->dev_name[i]; | |
224 | ||
225 | name[248] = '\0'; | |
226 | return sprintf(buf, "%s\n", name); | |
227 | } | |
228 | ||
229 | static ssize_t show_class(struct device *dev, struct device_attribute *attr, char *buf) | |
230 | { | |
231 | struct hci_dev *hdev = dev_get_drvdata(dev); | |
232 | return sprintf(buf, "0x%.2x%.2x%.2x\n", | |
233 | hdev->dev_class[2], hdev->dev_class[1], hdev->dev_class[0]); | |
234 | } | |
235 | ||
a91f2e39 | 236 | static ssize_t show_address(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 | 237 | { |
a91f2e39 | 238 | struct hci_dev *hdev = dev_get_drvdata(dev); |
d6b2eb2f | 239 | return sprintf(buf, "%s\n", batostr(&hdev->bdaddr)); |
1da177e4 LT |
240 | } |
241 | ||
a9de9248 MH |
242 | static ssize_t show_features(struct device *dev, struct device_attribute *attr, char *buf) |
243 | { | |
244 | struct hci_dev *hdev = dev_get_drvdata(dev); | |
245 | ||
246 | return sprintf(buf, "0x%02x%02x%02x%02x%02x%02x%02x%02x\n", | |
247 | hdev->features[0], hdev->features[1], | |
248 | hdev->features[2], hdev->features[3], | |
249 | hdev->features[4], hdev->features[5], | |
250 | hdev->features[6], hdev->features[7]); | |
251 | } | |
252 | ||
1143e5a6 MH |
253 | static ssize_t show_manufacturer(struct device *dev, struct device_attribute *attr, char *buf) |
254 | { | |
255 | struct hci_dev *hdev = dev_get_drvdata(dev); | |
256 | return sprintf(buf, "%d\n", hdev->manufacturer); | |
257 | } | |
258 | ||
259 | static ssize_t show_hci_version(struct device *dev, struct device_attribute *attr, char *buf) | |
260 | { | |
261 | struct hci_dev *hdev = dev_get_drvdata(dev); | |
262 | return sprintf(buf, "%d\n", hdev->hci_ver); | |
263 | } | |
264 | ||
265 | static ssize_t show_hci_revision(struct device *dev, struct device_attribute *attr, char *buf) | |
266 | { | |
267 | struct hci_dev *hdev = dev_get_drvdata(dev); | |
268 | return sprintf(buf, "%d\n", hdev->hci_rev); | |
269 | } | |
270 | ||
a91f2e39 | 271 | static ssize_t show_idle_timeout(struct device *dev, struct device_attribute *attr, char *buf) |
04837f64 | 272 | { |
a91f2e39 | 273 | struct hci_dev *hdev = dev_get_drvdata(dev); |
04837f64 MH |
274 | return sprintf(buf, "%d\n", hdev->idle_timeout); |
275 | } | |
276 | ||
a91f2e39 | 277 | static ssize_t store_idle_timeout(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
04837f64 | 278 | { |
a91f2e39 | 279 | struct hci_dev *hdev = dev_get_drvdata(dev); |
7b767cad | 280 | unsigned long val; |
04837f64 | 281 | |
7b767cad | 282 | if (strict_strtoul(buf, 0, &val) < 0) |
04837f64 MH |
283 | return -EINVAL; |
284 | ||
285 | if (val != 0 && (val < 500 || val > 3600000)) | |
286 | return -EINVAL; | |
287 | ||
288 | hdev->idle_timeout = val; | |
289 | ||
290 | return count; | |
291 | } | |
292 | ||
a91f2e39 | 293 | static ssize_t show_sniff_max_interval(struct device *dev, struct device_attribute *attr, char *buf) |
04837f64 | 294 | { |
a91f2e39 | 295 | struct hci_dev *hdev = dev_get_drvdata(dev); |
04837f64 MH |
296 | return sprintf(buf, "%d\n", hdev->sniff_max_interval); |
297 | } | |
298 | ||
a91f2e39 | 299 | static ssize_t store_sniff_max_interval(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
04837f64 | 300 | { |
a91f2e39 | 301 | struct hci_dev *hdev = dev_get_drvdata(dev); |
7b767cad | 302 | unsigned long val; |
04837f64 | 303 | |
7b767cad | 304 | if (strict_strtoul(buf, 0, &val) < 0) |
04837f64 MH |
305 | return -EINVAL; |
306 | ||
307 | if (val < 0x0002 || val > 0xFFFE || val % 2) | |
308 | return -EINVAL; | |
309 | ||
310 | if (val < hdev->sniff_min_interval) | |
311 | return -EINVAL; | |
312 | ||
313 | hdev->sniff_max_interval = val; | |
314 | ||
315 | return count; | |
316 | } | |
317 | ||
a91f2e39 | 318 | static ssize_t show_sniff_min_interval(struct device *dev, struct device_attribute *attr, char *buf) |
04837f64 | 319 | { |
a91f2e39 | 320 | struct hci_dev *hdev = dev_get_drvdata(dev); |
04837f64 MH |
321 | return sprintf(buf, "%d\n", hdev->sniff_min_interval); |
322 | } | |
323 | ||
a91f2e39 | 324 | static ssize_t store_sniff_min_interval(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
04837f64 | 325 | { |
a91f2e39 | 326 | struct hci_dev *hdev = dev_get_drvdata(dev); |
7b767cad | 327 | unsigned long val; |
04837f64 | 328 | |
7b767cad | 329 | if (strict_strtoul(buf, 0, &val) < 0) |
04837f64 MH |
330 | return -EINVAL; |
331 | ||
332 | if (val < 0x0002 || val > 0xFFFE || val % 2) | |
333 | return -EINVAL; | |
334 | ||
335 | if (val > hdev->sniff_max_interval) | |
336 | return -EINVAL; | |
337 | ||
338 | hdev->sniff_min_interval = val; | |
339 | ||
340 | return count; | |
341 | } | |
342 | ||
c13854ce | 343 | static DEVICE_ATTR(bus, S_IRUGO, show_bus, NULL); |
943da25d | 344 | static DEVICE_ATTR(type, S_IRUGO, show_type, NULL); |
a9de9248 MH |
345 | static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); |
346 | static DEVICE_ATTR(class, S_IRUGO, show_class, NULL); | |
a91f2e39 | 347 | static DEVICE_ATTR(address, S_IRUGO, show_address, NULL); |
a9de9248 | 348 | static DEVICE_ATTR(features, S_IRUGO, show_features, NULL); |
1143e5a6 MH |
349 | static DEVICE_ATTR(manufacturer, S_IRUGO, show_manufacturer, NULL); |
350 | static DEVICE_ATTR(hci_version, S_IRUGO, show_hci_version, NULL); | |
351 | static DEVICE_ATTR(hci_revision, S_IRUGO, show_hci_revision, NULL); | |
1da177e4 | 352 | |
a91f2e39 | 353 | static DEVICE_ATTR(idle_timeout, S_IRUGO | S_IWUSR, |
04837f64 | 354 | show_idle_timeout, store_idle_timeout); |
a91f2e39 | 355 | static DEVICE_ATTR(sniff_max_interval, S_IRUGO | S_IWUSR, |
04837f64 | 356 | show_sniff_max_interval, store_sniff_max_interval); |
a91f2e39 | 357 | static DEVICE_ATTR(sniff_min_interval, S_IRUGO | S_IWUSR, |
04837f64 MH |
358 | show_sniff_min_interval, store_sniff_min_interval); |
359 | ||
90855d7b | 360 | static struct attribute *bt_host_attrs[] = { |
c13854ce | 361 | &dev_attr_bus.attr, |
943da25d | 362 | &dev_attr_type.attr, |
90855d7b MH |
363 | &dev_attr_name.attr, |
364 | &dev_attr_class.attr, | |
365 | &dev_attr_address.attr, | |
366 | &dev_attr_features.attr, | |
367 | &dev_attr_manufacturer.attr, | |
368 | &dev_attr_hci_version.attr, | |
369 | &dev_attr_hci_revision.attr, | |
90855d7b MH |
370 | &dev_attr_idle_timeout.attr, |
371 | &dev_attr_sniff_max_interval.attr, | |
372 | &dev_attr_sniff_min_interval.attr, | |
1da177e4 LT |
373 | NULL |
374 | }; | |
375 | ||
90855d7b MH |
376 | static struct attribute_group bt_host_group = { |
377 | .attrs = bt_host_attrs, | |
b219e3ac MH |
378 | }; |
379 | ||
a4dbd674 | 380 | static const struct attribute_group *bt_host_groups[] = { |
90855d7b MH |
381 | &bt_host_group, |
382 | NULL | |
27d35284 MH |
383 | }; |
384 | ||
90855d7b | 385 | static void bt_host_release(struct device *dev) |
a91f2e39 | 386 | { |
b219e3ac MH |
387 | void *data = dev_get_drvdata(dev); |
388 | kfree(data); | |
389 | } | |
390 | ||
90855d7b MH |
391 | static struct device_type bt_host = { |
392 | .name = "host", | |
393 | .groups = bt_host_groups, | |
394 | .release = bt_host_release, | |
395 | }; | |
a91f2e39 | 396 | |
d4612cb8 | 397 | static int inquiry_cache_show(struct seq_file *f, void *p) |
ca325f69 | 398 | { |
d4612cb8 | 399 | struct hci_dev *hdev = f->private; |
ca325f69 MH |
400 | struct inquiry_cache *cache = &hdev->inq_cache; |
401 | struct inquiry_entry *e; | |
ca325f69 MH |
402 | |
403 | hci_dev_lock_bh(hdev); | |
404 | ||
405 | for (e = cache->list; e; e = e->next) { | |
406 | struct inquiry_data *data = &e->data; | |
d4612cb8 | 407 | seq_printf(f, "%s %d %d %d 0x%.2x%.2x%.2x 0x%.4x %d %d %u\n", |
d6b2eb2f | 408 | batostr(&data->bdaddr), |
d4612cb8 MH |
409 | data->pscan_rep_mode, data->pscan_period_mode, |
410 | data->pscan_mode, data->dev_class[2], | |
411 | data->dev_class[1], data->dev_class[0], | |
412 | __le16_to_cpu(data->clock_offset), | |
413 | data->rssi, data->ssp_mode, e->timestamp); | |
ca325f69 MH |
414 | } |
415 | ||
416 | hci_dev_unlock_bh(hdev); | |
417 | ||
d4612cb8 MH |
418 | return 0; |
419 | } | |
420 | ||
421 | static int inquiry_cache_open(struct inode *inode, struct file *file) | |
422 | { | |
423 | return single_open(file, inquiry_cache_show, inode->i_private); | |
ca325f69 MH |
424 | } |
425 | ||
426 | static const struct file_operations inquiry_cache_fops = { | |
d4612cb8 MH |
427 | .open = inquiry_cache_open, |
428 | .read = seq_read, | |
429 | .llseek = seq_lseek, | |
430 | .release = single_release, | |
ca325f69 MH |
431 | }; |
432 | ||
32c2ece5 JH |
433 | static int blacklist_show(struct seq_file *f, void *p) |
434 | { | |
435 | struct hci_dev *hdev = f->private; | |
32c2ece5 JH |
436 | struct list_head *l; |
437 | ||
438 | hci_dev_lock_bh(hdev); | |
439 | ||
ea4bd8ba | 440 | list_for_each(l, &hdev->blacklist) { |
32c2ece5 | 441 | struct bdaddr_list *b; |
32c2ece5 JH |
442 | |
443 | b = list_entry(l, struct bdaddr_list, list); | |
444 | ||
d6b2eb2f | 445 | seq_printf(f, "%s\n", batostr(&b->bdaddr)); |
32c2ece5 JH |
446 | } |
447 | ||
448 | hci_dev_unlock_bh(hdev); | |
449 | ||
450 | return 0; | |
451 | } | |
452 | ||
453 | static int blacklist_open(struct inode *inode, struct file *file) | |
454 | { | |
455 | return single_open(file, blacklist_show, inode->i_private); | |
456 | } | |
457 | ||
458 | static const struct file_operations blacklist_fops = { | |
459 | .open = blacklist_open, | |
460 | .read = seq_read, | |
461 | .llseek = seq_lseek, | |
462 | .release = single_release, | |
463 | }; | |
1da177e4 LT |
464 | int hci_register_sysfs(struct hci_dev *hdev) |
465 | { | |
a91f2e39 | 466 | struct device *dev = &hdev->dev; |
1da177e4 LT |
467 | int err; |
468 | ||
c13854ce | 469 | BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus); |
1da177e4 | 470 | |
90855d7b MH |
471 | dev->type = &bt_host; |
472 | dev->class = bt_class; | |
e9c4bec6 | 473 | dev->parent = hdev->parent; |
a91f2e39 | 474 | |
2e792995 | 475 | dev_set_name(dev, "%s", hdev->name); |
1da177e4 | 476 | |
a91f2e39 | 477 | dev_set_drvdata(dev, hdev); |
27d35284 | 478 | |
a91f2e39 | 479 | err = device_register(dev); |
1da177e4 LT |
480 | if (err < 0) |
481 | return err; | |
482 | ||
ca325f69 MH |
483 | if (!bt_debugfs) |
484 | return 0; | |
485 | ||
486 | hdev->debugfs = debugfs_create_dir(hdev->name, bt_debugfs); | |
487 | if (!hdev->debugfs) | |
488 | return 0; | |
489 | ||
490 | debugfs_create_file("inquiry_cache", 0444, hdev->debugfs, | |
491 | hdev, &inquiry_cache_fops); | |
492 | ||
32c2ece5 JH |
493 | debugfs_create_file("blacklist", 0444, hdev->debugfs, |
494 | hdev, &blacklist_fops); | |
495 | ||
1da177e4 LT |
496 | return 0; |
497 | } | |
498 | ||
499 | void hci_unregister_sysfs(struct hci_dev *hdev) | |
500 | { | |
c13854ce | 501 | BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus); |
1da177e4 | 502 | |
ca325f69 MH |
503 | debugfs_remove_recursive(hdev->debugfs); |
504 | ||
4d0eb004 | 505 | device_del(&hdev->dev); |
1da177e4 LT |
506 | } |
507 | ||
508 | int __init bt_sysfs_init(void) | |
509 | { | |
ca325f69 MH |
510 | bt_debugfs = debugfs_create_dir("bluetooth", NULL); |
511 | ||
a91f2e39 | 512 | bt_class = class_create(THIS_MODULE, "bluetooth"); |
f48fd9c8 | 513 | if (IS_ERR(bt_class)) |
90855d7b | 514 | return PTR_ERR(bt_class); |
27d35284 MH |
515 | |
516 | return 0; | |
1da177e4 LT |
517 | } |
518 | ||
860e13b5 | 519 | void bt_sysfs_cleanup(void) |
1da177e4 | 520 | { |
a91f2e39 | 521 | class_destroy(bt_class); |
ca325f69 MH |
522 | |
523 | debugfs_remove_recursive(bt_debugfs); | |
1da177e4 | 524 | } |