blob: 0e8df41aaf144c7a00818bb95959a58060c99efe [file] [log] [blame]
James Bottomleyd569d5b2008-02-03 15:40:56 -06001/*
2 * Enclosure Services
3 *
4 * Copyright (C) 2008 James Bottomley <James.Bottomley@HansenPartnership.com>
5 *
6**-----------------------------------------------------------------------------
7**
8** This program is free software; you can redistribute it and/or
9** modify it under the terms of the GNU General Public License
10** version 2 as published by the Free Software Foundation.
11**
12** This program is distributed in the hope that it will be useful,
13** but WITHOUT ANY WARRANTY; without even the implied warranty of
14** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15** GNU General Public License for more details.
16**
17** You should have received a copy of the GNU General Public License
18** along with this program; if not, write to the Free Software
19** Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20**
21**-----------------------------------------------------------------------------
22*/
23#include <linux/device.h>
24#include <linux/enclosure.h>
25#include <linux/err.h>
26#include <linux/list.h>
27#include <linux/kernel.h>
28#include <linux/module.h>
29#include <linux/mutex.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090030#include <linux/slab.h>
James Bottomleyd569d5b2008-02-03 15:40:56 -060031
32static LIST_HEAD(container_list);
33static DEFINE_MUTEX(container_list_lock);
34static struct class enclosure_class;
James Bottomleyd569d5b2008-02-03 15:40:56 -060035
36/**
James Bottomley163f52b2009-08-01 00:39:36 +000037 * enclosure_find - find an enclosure given a parent device
38 * @dev: the parent to match against
39 * @start: Optional enclosure device to start from (NULL if none)
James Bottomleyd569d5b2008-02-03 15:40:56 -060040 *
James Bottomley163f52b2009-08-01 00:39:36 +000041 * Looks through the list of registered enclosures to find all those
42 * with @dev as a parent. Returns NULL if no enclosure is
43 * found. @start can be used as a starting point to obtain multiple
44 * enclosures per parent (should begin with NULL and then be set to
45 * each returned enclosure device). Obtains a reference to the
46 * enclosure class device which must be released with device_put().
47 * If @start is not NULL, a reference must be taken on it which is
48 * released before returning (this allows a loop through all
49 * enclosures to exit with only the reference on the enclosure of
50 * interest held). Note that the @dev may correspond to the actual
51 * device housing the enclosure, in which case no iteration via @start
52 * is required.
James Bottomleyd569d5b2008-02-03 15:40:56 -060053 */
James Bottomley163f52b2009-08-01 00:39:36 +000054struct enclosure_device *enclosure_find(struct device *dev,
55 struct enclosure_device *start)
James Bottomleyd569d5b2008-02-03 15:40:56 -060056{
Tony Jonesee959b02008-02-22 00:13:36 +010057 struct enclosure_device *edev;
James Bottomleyd569d5b2008-02-03 15:40:56 -060058
59 mutex_lock(&container_list_lock);
James Bottomley163f52b2009-08-01 00:39:36 +000060 edev = list_prepare_entry(start, &container_list, node);
61 if (start)
62 put_device(&start->edev);
63
64 list_for_each_entry_continue(edev, &container_list, node) {
65 struct device *parent = edev->edev.parent;
66 /* parent might not be immediate, so iterate up to
67 * the root of the tree if necessary */
68 while (parent) {
69 if (parent == dev) {
70 get_device(&edev->edev);
71 mutex_unlock(&container_list_lock);
72 return edev;
73 }
74 parent = parent->parent;
James Bottomleyd569d5b2008-02-03 15:40:56 -060075 }
76 }
77 mutex_unlock(&container_list_lock);
78
79 return NULL;
80}
81EXPORT_SYMBOL_GPL(enclosure_find);
82
83/**
84 * enclosure_for_each_device - calls a function for each enclosure
85 * @fn: the function to call
86 * @data: the data to pass to each call
87 *
88 * Loops over all the enclosures calling the function.
89 *
90 * Note, this function uses a mutex which will be held across calls to
91 * @fn, so it must have non atomic context, and @fn may (although it
92 * should not) sleep or otherwise cause the mutex to be held for
93 * indefinite periods
94 */
95int enclosure_for_each_device(int (*fn)(struct enclosure_device *, void *),
96 void *data)
97{
98 int error = 0;
99 struct enclosure_device *edev;
100
101 mutex_lock(&container_list_lock);
102 list_for_each_entry(edev, &container_list, node) {
103 error = fn(edev, data);
104 if (error)
105 break;
106 }
107 mutex_unlock(&container_list_lock);
108
109 return error;
110}
111EXPORT_SYMBOL_GPL(enclosure_for_each_device);
112
113/**
114 * enclosure_register - register device as an enclosure
115 *
116 * @dev: device containing the enclosure
117 * @components: number of components in the enclosure
118 *
119 * This sets up the device for being an enclosure. Note that @dev does
120 * not have to be a dedicated enclosure device. It may be some other type
121 * of device that additionally responds to enclosure services
122 */
123struct enclosure_device *
124enclosure_register(struct device *dev, const char *name, int components,
125 struct enclosure_component_callbacks *cb)
126{
127 struct enclosure_device *edev =
128 kzalloc(sizeof(struct enclosure_device) +
129 sizeof(struct enclosure_component)*components,
130 GFP_KERNEL);
131 int err, i;
132
133 BUG_ON(!cb);
134
135 if (!edev)
136 return ERR_PTR(-ENOMEM);
137
138 edev->components = components;
139
Tony Jonesee959b02008-02-22 00:13:36 +0100140 edev->edev.class = &enclosure_class;
141 edev->edev.parent = get_device(dev);
James Bottomleyd569d5b2008-02-03 15:40:56 -0600142 edev->cb = cb;
Yinghai Lu5e437542009-04-30 19:13:41 -0700143 dev_set_name(&edev->edev, "%s", name);
Tony Jonesee959b02008-02-22 00:13:36 +0100144 err = device_register(&edev->edev);
James Bottomleyd569d5b2008-02-03 15:40:56 -0600145 if (err)
146 goto err;
147
148 for (i = 0; i < components; i++)
149 edev->component[i].number = -1;
150
151 mutex_lock(&container_list_lock);
152 list_add_tail(&edev->node, &container_list);
153 mutex_unlock(&container_list_lock);
154
155 return edev;
156
157 err:
Tony Jonesee959b02008-02-22 00:13:36 +0100158 put_device(edev->edev.parent);
James Bottomleyd569d5b2008-02-03 15:40:56 -0600159 kfree(edev);
160 return ERR_PTR(err);
161}
162EXPORT_SYMBOL_GPL(enclosure_register);
163
164static struct enclosure_component_callbacks enclosure_null_callbacks;
165
166/**
167 * enclosure_unregister - remove an enclosure
168 *
169 * @edev: the registered enclosure to remove;
170 */
171void enclosure_unregister(struct enclosure_device *edev)
172{
173 int i;
174
175 mutex_lock(&container_list_lock);
176 list_del(&edev->node);
177 mutex_unlock(&container_list_lock);
178
179 for (i = 0; i < edev->components; i++)
180 if (edev->component[i].number != -1)
Tony Jonesee959b02008-02-22 00:13:36 +0100181 device_unregister(&edev->component[i].cdev);
James Bottomleyd569d5b2008-02-03 15:40:56 -0600182
183 /* prevent any callbacks into service user */
184 edev->cb = &enclosure_null_callbacks;
Tony Jonesee959b02008-02-22 00:13:36 +0100185 device_unregister(&edev->edev);
James Bottomleyd569d5b2008-02-03 15:40:56 -0600186}
187EXPORT_SYMBOL_GPL(enclosure_unregister);
188
James Bottomleycb6b7f42008-03-15 13:01:40 -0500189#define ENCLOSURE_NAME_SIZE 64
190
191static void enclosure_link_name(struct enclosure_component *cdev, char *name)
192{
193 strcpy(name, "enclosure_device:");
Kay Sievers71610f52008-12-03 22:41:36 +0100194 strcat(name, dev_name(&cdev->cdev));
James Bottomleycb6b7f42008-03-15 13:01:40 -0500195}
196
197static void enclosure_remove_links(struct enclosure_component *cdev)
198{
199 char name[ENCLOSURE_NAME_SIZE];
200
201 enclosure_link_name(cdev, name);
202 sysfs_remove_link(&cdev->dev->kobj, name);
203 sysfs_remove_link(&cdev->cdev.kobj, "device");
204}
205
206static int enclosure_add_links(struct enclosure_component *cdev)
207{
208 int error;
209 char name[ENCLOSURE_NAME_SIZE];
210
211 error = sysfs_create_link(&cdev->cdev.kobj, &cdev->dev->kobj, "device");
212 if (error)
213 return error;
214
215 enclosure_link_name(cdev, name);
216 error = sysfs_create_link(&cdev->dev->kobj, &cdev->cdev.kobj, name);
217 if (error)
218 sysfs_remove_link(&cdev->cdev.kobj, "device");
219
220 return error;
221}
222
Tony Jonesee959b02008-02-22 00:13:36 +0100223static void enclosure_release(struct device *cdev)
James Bottomleyd569d5b2008-02-03 15:40:56 -0600224{
225 struct enclosure_device *edev = to_enclosure_device(cdev);
226
Tony Jonesee959b02008-02-22 00:13:36 +0100227 put_device(cdev->parent);
James Bottomleyd569d5b2008-02-03 15:40:56 -0600228 kfree(edev);
229}
230
Tony Jonesee959b02008-02-22 00:13:36 +0100231static void enclosure_component_release(struct device *dev)
James Bottomleyd569d5b2008-02-03 15:40:56 -0600232{
Tony Jonesee959b02008-02-22 00:13:36 +0100233 struct enclosure_component *cdev = to_enclosure_component(dev);
234
James Bottomleycb6b7f42008-03-15 13:01:40 -0500235 if (cdev->dev) {
236 enclosure_remove_links(cdev);
237 put_device(cdev->dev);
238 }
Tony Jonesee959b02008-02-22 00:13:36 +0100239 put_device(dev->parent);
James Bottomleyd569d5b2008-02-03 15:40:56 -0600240}
241
Greg Kroah-Hartman899826f2013-07-24 15:05:16 -0700242static const struct attribute_group *enclosure_component_groups[];
James Bottomleycb6b7f42008-03-15 13:01:40 -0500243
James Bottomleyd569d5b2008-02-03 15:40:56 -0600244/**
245 * enclosure_component_register - add a particular component to an enclosure
246 * @edev: the enclosure to add the component
247 * @num: the device number
248 * @type: the type of component being added
249 * @name: an optional name to appear in sysfs (leave NULL if none)
250 *
251 * Registers the component. The name is optional for enclosures that
252 * give their components a unique name. If not, leave the field NULL
253 * and a name will be assigned.
254 *
255 * Returns a pointer to the enclosure component or an error.
256 */
257struct enclosure_component *
258enclosure_component_register(struct enclosure_device *edev,
259 unsigned int number,
260 enum enclosure_component_type type,
261 const char *name)
262{
263 struct enclosure_component *ecomp;
Tony Jonesee959b02008-02-22 00:13:36 +0100264 struct device *cdev;
James Bottomleyd569d5b2008-02-03 15:40:56 -0600265 int err;
266
267 if (number >= edev->components)
268 return ERR_PTR(-EINVAL);
269
270 ecomp = &edev->component[number];
271
272 if (ecomp->number != -1)
273 return ERR_PTR(-EINVAL);
274
275 ecomp->type = type;
276 ecomp->number = number;
277 cdev = &ecomp->cdev;
Tony Jonesee959b02008-02-22 00:13:36 +0100278 cdev->parent = get_device(&edev->edev);
Yinghai Lu5e437542009-04-30 19:13:41 -0700279 if (name && name[0])
280 dev_set_name(cdev, "%s", name);
James Bottomleyd569d5b2008-02-03 15:40:56 -0600281 else
Kay Sievers71610f52008-12-03 22:41:36 +0100282 dev_set_name(cdev, "%u", number);
James Bottomleyd569d5b2008-02-03 15:40:56 -0600283
James Bottomleycb6b7f42008-03-15 13:01:40 -0500284 cdev->release = enclosure_component_release;
Greg Kroah-Hartman899826f2013-07-24 15:05:16 -0700285 cdev->groups = enclosure_component_groups;
James Bottomleycb6b7f42008-03-15 13:01:40 -0500286
Tony Jonesee959b02008-02-22 00:13:36 +0100287 err = device_register(cdev);
James Bottomleya91c1be2010-03-12 16:14:42 -0600288 if (err) {
289 ecomp->number = -1;
290 put_device(cdev);
291 return ERR_PTR(err);
292 }
James Bottomleyd569d5b2008-02-03 15:40:56 -0600293
294 return ecomp;
295}
296EXPORT_SYMBOL_GPL(enclosure_component_register);
297
298/**
299 * enclosure_add_device - add a device as being part of an enclosure
300 * @edev: the enclosure device being added to.
301 * @num: the number of the component
302 * @dev: the device being added
303 *
304 * Declares a real device to reside in slot (or identifier) @num of an
305 * enclosure. This will cause the relevant sysfs links to appear.
306 * This function may also be used to change a device associated with
307 * an enclosure without having to call enclosure_remove_device() in
308 * between.
309 *
310 * Returns zero on success or an error.
311 */
312int enclosure_add_device(struct enclosure_device *edev, int component,
313 struct device *dev)
314{
Tony Jonesee959b02008-02-22 00:13:36 +0100315 struct enclosure_component *cdev;
James Bottomleyd569d5b2008-02-03 15:40:56 -0600316
317 if (!edev || component >= edev->components)
318 return -EINVAL;
319
Tony Jonesee959b02008-02-22 00:13:36 +0100320 cdev = &edev->component[component];
James Bottomleyd569d5b2008-02-03 15:40:56 -0600321
James Bottomley21fab1d2009-08-01 00:43:59 +0000322 if (cdev->dev == dev)
323 return -EEXIST;
324
James Bottomleycb6b7f42008-03-15 13:01:40 -0500325 if (cdev->dev)
326 enclosure_remove_links(cdev);
327
Tony Jonesee959b02008-02-22 00:13:36 +0100328 put_device(cdev->dev);
James Bottomleyd569d5b2008-02-03 15:40:56 -0600329 cdev->dev = get_device(dev);
James Bottomleycb6b7f42008-03-15 13:01:40 -0500330 return enclosure_add_links(cdev);
James Bottomleyd569d5b2008-02-03 15:40:56 -0600331}
332EXPORT_SYMBOL_GPL(enclosure_add_device);
333
334/**
335 * enclosure_remove_device - remove a device from an enclosure
336 * @edev: the enclosure device
337 * @num: the number of the component to remove
338 *
339 * Returns zero on success or an error.
340 *
341 */
James Bottomley43d8eb92009-08-01 00:41:22 +0000342int enclosure_remove_device(struct enclosure_device *edev, struct device *dev)
James Bottomleyd569d5b2008-02-03 15:40:56 -0600343{
Tony Jonesee959b02008-02-22 00:13:36 +0100344 struct enclosure_component *cdev;
James Bottomley43d8eb92009-08-01 00:41:22 +0000345 int i;
James Bottomleyd569d5b2008-02-03 15:40:56 -0600346
James Bottomley43d8eb92009-08-01 00:41:22 +0000347 if (!edev || !dev)
James Bottomleyd569d5b2008-02-03 15:40:56 -0600348 return -EINVAL;
349
James Bottomley43d8eb92009-08-01 00:41:22 +0000350 for (i = 0; i < edev->components; i++) {
351 cdev = &edev->component[i];
352 if (cdev->dev == dev) {
353 enclosure_remove_links(cdev);
354 device_del(&cdev->cdev);
355 put_device(dev);
356 cdev->dev = NULL;
357 return device_add(&cdev->cdev);
358 }
359 }
360 return -ENODEV;
James Bottomleyd569d5b2008-02-03 15:40:56 -0600361}
362EXPORT_SYMBOL_GPL(enclosure_remove_device);
363
364/*
365 * sysfs pieces below
366 */
367
Greg Kroah-Hartman899826f2013-07-24 15:05:16 -0700368static ssize_t components_show(struct device *cdev,
369 struct device_attribute *attr, char *buf)
James Bottomleyd569d5b2008-02-03 15:40:56 -0600370{
371 struct enclosure_device *edev = to_enclosure_device(cdev);
372
373 return snprintf(buf, 40, "%d\n", edev->components);
374}
Greg Kroah-Hartman899826f2013-07-24 15:05:16 -0700375static DEVICE_ATTR_RO(components);
James Bottomleyd569d5b2008-02-03 15:40:56 -0600376
Greg Kroah-Hartman899826f2013-07-24 15:05:16 -0700377static struct attribute *enclosure_class_attrs[] = {
378 &dev_attr_components.attr,
379 NULL,
James Bottomleyd569d5b2008-02-03 15:40:56 -0600380};
Greg Kroah-Hartman899826f2013-07-24 15:05:16 -0700381ATTRIBUTE_GROUPS(enclosure_class);
James Bottomleyd569d5b2008-02-03 15:40:56 -0600382
383static struct class enclosure_class = {
384 .name = "enclosure",
385 .owner = THIS_MODULE,
Tony Jonesee959b02008-02-22 00:13:36 +0100386 .dev_release = enclosure_release,
Greg Kroah-Hartman899826f2013-07-24 15:05:16 -0700387 .dev_groups = enclosure_class_groups,
James Bottomleyd569d5b2008-02-03 15:40:56 -0600388};
389
390static const char *const enclosure_status [] = {
391 [ENCLOSURE_STATUS_UNSUPPORTED] = "unsupported",
392 [ENCLOSURE_STATUS_OK] = "OK",
393 [ENCLOSURE_STATUS_CRITICAL] = "critical",
394 [ENCLOSURE_STATUS_NON_CRITICAL] = "non-critical",
395 [ENCLOSURE_STATUS_UNRECOVERABLE] = "unrecoverable",
396 [ENCLOSURE_STATUS_NOT_INSTALLED] = "not installed",
397 [ENCLOSURE_STATUS_UNKNOWN] = "unknown",
398 [ENCLOSURE_STATUS_UNAVAILABLE] = "unavailable",
James Bottomleycc9b2e92009-11-26 09:50:20 -0600399 [ENCLOSURE_STATUS_MAX] = NULL,
James Bottomleyd569d5b2008-02-03 15:40:56 -0600400};
401
402static const char *const enclosure_type [] = {
403 [ENCLOSURE_COMPONENT_DEVICE] = "device",
404 [ENCLOSURE_COMPONENT_ARRAY_DEVICE] = "array device",
405};
406
Tony Jonesee959b02008-02-22 00:13:36 +0100407static ssize_t get_component_fault(struct device *cdev,
408 struct device_attribute *attr, char *buf)
James Bottomleyd569d5b2008-02-03 15:40:56 -0600409{
410 struct enclosure_device *edev = to_enclosure_device(cdev->parent);
411 struct enclosure_component *ecomp = to_enclosure_component(cdev);
412
413 if (edev->cb->get_fault)
414 edev->cb->get_fault(edev, ecomp);
415 return snprintf(buf, 40, "%d\n", ecomp->fault);
416}
417
Tony Jonesee959b02008-02-22 00:13:36 +0100418static ssize_t set_component_fault(struct device *cdev,
419 struct device_attribute *attr,
420 const char *buf, size_t count)
James Bottomleyd569d5b2008-02-03 15:40:56 -0600421{
422 struct enclosure_device *edev = to_enclosure_device(cdev->parent);
423 struct enclosure_component *ecomp = to_enclosure_component(cdev);
424 int val = simple_strtoul(buf, NULL, 0);
425
426 if (edev->cb->set_fault)
427 edev->cb->set_fault(edev, ecomp, val);
428 return count;
429}
430
Tony Jonesee959b02008-02-22 00:13:36 +0100431static ssize_t get_component_status(struct device *cdev,
432 struct device_attribute *attr,char *buf)
James Bottomleyd569d5b2008-02-03 15:40:56 -0600433{
434 struct enclosure_device *edev = to_enclosure_device(cdev->parent);
435 struct enclosure_component *ecomp = to_enclosure_component(cdev);
436
437 if (edev->cb->get_status)
438 edev->cb->get_status(edev, ecomp);
439 return snprintf(buf, 40, "%s\n", enclosure_status[ecomp->status]);
440}
441
Tony Jonesee959b02008-02-22 00:13:36 +0100442static ssize_t set_component_status(struct device *cdev,
443 struct device_attribute *attr,
444 const char *buf, size_t count)
James Bottomleyd569d5b2008-02-03 15:40:56 -0600445{
446 struct enclosure_device *edev = to_enclosure_device(cdev->parent);
447 struct enclosure_component *ecomp = to_enclosure_component(cdev);
448 int i;
449
450 for (i = 0; enclosure_status[i]; i++) {
451 if (strncmp(buf, enclosure_status[i],
452 strlen(enclosure_status[i])) == 0 &&
453 (buf[strlen(enclosure_status[i])] == '\n' ||
454 buf[strlen(enclosure_status[i])] == '\0'))
455 break;
456 }
457
458 if (enclosure_status[i] && edev->cb->set_status) {
459 edev->cb->set_status(edev, ecomp, i);
460 return count;
461 } else
462 return -EINVAL;
463}
464
Tony Jonesee959b02008-02-22 00:13:36 +0100465static ssize_t get_component_active(struct device *cdev,
466 struct device_attribute *attr, char *buf)
James Bottomleyd569d5b2008-02-03 15:40:56 -0600467{
468 struct enclosure_device *edev = to_enclosure_device(cdev->parent);
469 struct enclosure_component *ecomp = to_enclosure_component(cdev);
470
471 if (edev->cb->get_active)
472 edev->cb->get_active(edev, ecomp);
473 return snprintf(buf, 40, "%d\n", ecomp->active);
474}
475
Tony Jonesee959b02008-02-22 00:13:36 +0100476static ssize_t set_component_active(struct device *cdev,
477 struct device_attribute *attr,
478 const char *buf, size_t count)
James Bottomleyd569d5b2008-02-03 15:40:56 -0600479{
480 struct enclosure_device *edev = to_enclosure_device(cdev->parent);
481 struct enclosure_component *ecomp = to_enclosure_component(cdev);
482 int val = simple_strtoul(buf, NULL, 0);
483
484 if (edev->cb->set_active)
485 edev->cb->set_active(edev, ecomp, val);
486 return count;
487}
488
Tony Jonesee959b02008-02-22 00:13:36 +0100489static ssize_t get_component_locate(struct device *cdev,
490 struct device_attribute *attr, char *buf)
James Bottomleyd569d5b2008-02-03 15:40:56 -0600491{
492 struct enclosure_device *edev = to_enclosure_device(cdev->parent);
493 struct enclosure_component *ecomp = to_enclosure_component(cdev);
494
495 if (edev->cb->get_locate)
496 edev->cb->get_locate(edev, ecomp);
497 return snprintf(buf, 40, "%d\n", ecomp->locate);
498}
499
Tony Jonesee959b02008-02-22 00:13:36 +0100500static ssize_t set_component_locate(struct device *cdev,
501 struct device_attribute *attr,
502 const char *buf, size_t count)
James Bottomleyd569d5b2008-02-03 15:40:56 -0600503{
504 struct enclosure_device *edev = to_enclosure_device(cdev->parent);
505 struct enclosure_component *ecomp = to_enclosure_component(cdev);
506 int val = simple_strtoul(buf, NULL, 0);
507
508 if (edev->cb->set_locate)
509 edev->cb->set_locate(edev, ecomp, val);
510 return count;
511}
512
Tony Jonesee959b02008-02-22 00:13:36 +0100513static ssize_t get_component_type(struct device *cdev,
514 struct device_attribute *attr, char *buf)
James Bottomleyd569d5b2008-02-03 15:40:56 -0600515{
516 struct enclosure_component *ecomp = to_enclosure_component(cdev);
517
518 return snprintf(buf, 40, "%s\n", enclosure_type[ecomp->type]);
519}
520
521
James Bottomleycb6b7f42008-03-15 13:01:40 -0500522static DEVICE_ATTR(fault, S_IRUGO | S_IWUSR, get_component_fault,
523 set_component_fault);
524static DEVICE_ATTR(status, S_IRUGO | S_IWUSR, get_component_status,
525 set_component_status);
526static DEVICE_ATTR(active, S_IRUGO | S_IWUSR, get_component_active,
527 set_component_active);
528static DEVICE_ATTR(locate, S_IRUGO | S_IWUSR, get_component_locate,
529 set_component_locate);
530static DEVICE_ATTR(type, S_IRUGO, get_component_type, NULL);
531
532static struct attribute *enclosure_component_attrs[] = {
533 &dev_attr_fault.attr,
534 &dev_attr_status.attr,
535 &dev_attr_active.attr,
536 &dev_attr_locate.attr,
537 &dev_attr_type.attr,
538 NULL
James Bottomleyd569d5b2008-02-03 15:40:56 -0600539};
Greg Kroah-Hartman899826f2013-07-24 15:05:16 -0700540ATTRIBUTE_GROUPS(enclosure_component);
James Bottomleyd569d5b2008-02-03 15:40:56 -0600541
542static int __init enclosure_init(void)
543{
544 int err;
545
546 err = class_register(&enclosure_class);
547 if (err)
548 return err;
James Bottomleyd569d5b2008-02-03 15:40:56 -0600549
550 return 0;
James Bottomleyd569d5b2008-02-03 15:40:56 -0600551}
552
553static void __exit enclosure_exit(void)
554{
James Bottomleyd569d5b2008-02-03 15:40:56 -0600555 class_unregister(&enclosure_class);
556}
557
558module_init(enclosure_init);
559module_exit(enclosure_exit);
560
561MODULE_AUTHOR("James Bottomley");
562MODULE_DESCRIPTION("Enclosure Services");
563MODULE_LICENSE("GPL v2");