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18#include <linux/device.h>
19#include <linux/input.h>
20#include <linux/hid.h>
21#include <linux/module.h>
22#include <linux/slab.h>
23#include <linux/hid-roccat.h>
24#include "hid-ids.h"
25#include "hid-roccat-common.h"
26#include "hid-roccat-kovaplus.h"
27
28static uint profile_numbers[5] = {0, 1, 2, 3, 4};
29
30static struct class *kovaplus_class;
31
32static uint kovaplus_convert_event_cpi(uint value)
33{
34 return (value == 7 ? 4 : (value == 4 ? 3 : value));
35}
36
37static void kovaplus_profile_activated(struct kovaplus_device *kovaplus,
38 uint new_profile_index)
39{
40 kovaplus->actual_profile = new_profile_index;
41 kovaplus->actual_cpi = kovaplus->profile_settings[new_profile_index].cpi_startup_level;
42 kovaplus->actual_x_sensitivity = kovaplus->profile_settings[new_profile_index].sensitivity_x;
43 kovaplus->actual_y_sensitivity = kovaplus->profile_settings[new_profile_index].sensitivity_y;
44}
45
46static int kovaplus_send_control(struct usb_device *usb_dev, uint value,
47 enum kovaplus_control_requests request)
48{
49 int retval;
50 struct roccat_common2_control control;
51
52 if ((request == KOVAPLUS_CONTROL_REQUEST_PROFILE_SETTINGS ||
53 request == KOVAPLUS_CONTROL_REQUEST_PROFILE_BUTTONS) &&
54 value > 4)
55 return -EINVAL;
56
57 control.command = ROCCAT_COMMON_COMMAND_CONTROL;
58 control.value = value;
59 control.request = request;
60
61 retval = roccat_common2_send(usb_dev, ROCCAT_COMMON_COMMAND_CONTROL,
62 &control, sizeof(struct roccat_common2_control));
63
64 return retval;
65}
66
67static int kovaplus_select_profile(struct usb_device *usb_dev, uint number,
68 enum kovaplus_control_requests request)
69{
70 return kovaplus_send_control(usb_dev, number, request);
71}
72
73static int kovaplus_get_profile_settings(struct usb_device *usb_dev,
74 struct kovaplus_profile_settings *buf, uint number)
75{
76 int retval;
77
78 retval = kovaplus_select_profile(usb_dev, number,
79 KOVAPLUS_CONTROL_REQUEST_PROFILE_SETTINGS);
80 if (retval)
81 return retval;
82
83 return roccat_common2_receive(usb_dev, KOVAPLUS_COMMAND_PROFILE_SETTINGS,
84 buf, KOVAPLUS_SIZE_PROFILE_SETTINGS);
85}
86
87static int kovaplus_get_profile_buttons(struct usb_device *usb_dev,
88 struct kovaplus_profile_buttons *buf, int number)
89{
90 int retval;
91
92 retval = kovaplus_select_profile(usb_dev, number,
93 KOVAPLUS_CONTROL_REQUEST_PROFILE_BUTTONS);
94 if (retval)
95 return retval;
96
97 return roccat_common2_receive(usb_dev, KOVAPLUS_COMMAND_PROFILE_BUTTONS,
98 buf, KOVAPLUS_SIZE_PROFILE_BUTTONS);
99}
100
101
102static int kovaplus_get_actual_profile(struct usb_device *usb_dev)
103{
104 struct kovaplus_actual_profile buf;
105 int retval;
106
107 retval = roccat_common2_receive(usb_dev, KOVAPLUS_COMMAND_ACTUAL_PROFILE,
108 &buf, sizeof(struct kovaplus_actual_profile));
109
110 return retval ? retval : buf.actual_profile;
111}
112
113static int kovaplus_set_actual_profile(struct usb_device *usb_dev,
114 int new_profile)
115{
116 struct kovaplus_actual_profile buf;
117
118 buf.command = KOVAPLUS_COMMAND_ACTUAL_PROFILE;
119 buf.size = sizeof(struct kovaplus_actual_profile);
120 buf.actual_profile = new_profile;
121
122 return roccat_common2_send_with_status(usb_dev,
123 KOVAPLUS_COMMAND_ACTUAL_PROFILE,
124 &buf, sizeof(struct kovaplus_actual_profile));
125}
126
127static ssize_t kovaplus_sysfs_read(struct file *fp, struct kobject *kobj,
128 char *buf, loff_t off, size_t count,
129 size_t real_size, uint command)
130{
131 struct device *dev = kobj_to_dev(kobj)->parent->parent;
132 struct kovaplus_device *kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
133 struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
134 int retval;
135
136 if (off >= real_size)
137 return 0;
138
139 if (off != 0 || count != real_size)
140 return -EINVAL;
141
142 mutex_lock(&kovaplus->kovaplus_lock);
143 retval = roccat_common2_receive(usb_dev, command, buf, real_size);
144 mutex_unlock(&kovaplus->kovaplus_lock);
145
146 if (retval)
147 return retval;
148
149 return real_size;
150}
151
152static ssize_t kovaplus_sysfs_write(struct file *fp, struct kobject *kobj,
153 void const *buf, loff_t off, size_t count,
154 size_t real_size, uint command)
155{
156 struct device *dev = kobj_to_dev(kobj)->parent->parent;
157 struct kovaplus_device *kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
158 struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
159 int retval;
160
161 if (off != 0 || count != real_size)
162 return -EINVAL;
163
164 mutex_lock(&kovaplus->kovaplus_lock);
165 retval = roccat_common2_send_with_status(usb_dev, command,
166 buf, real_size);
167 mutex_unlock(&kovaplus->kovaplus_lock);
168
169 if (retval)
170 return retval;
171
172 return real_size;
173}
174
175#define KOVAPLUS_SYSFS_W(thingy, THINGY) \
176static ssize_t kovaplus_sysfs_write_ ## thingy(struct file *fp, \
177 struct kobject *kobj, struct bin_attribute *attr, char *buf, \
178 loff_t off, size_t count) \
179{ \
180 return kovaplus_sysfs_write(fp, kobj, buf, off, count, \
181 KOVAPLUS_SIZE_ ## THINGY, KOVAPLUS_COMMAND_ ## THINGY); \
182}
183
184#define KOVAPLUS_SYSFS_R(thingy, THINGY) \
185static ssize_t kovaplus_sysfs_read_ ## thingy(struct file *fp, \
186 struct kobject *kobj, struct bin_attribute *attr, char *buf, \
187 loff_t off, size_t count) \
188{ \
189 return kovaplus_sysfs_read(fp, kobj, buf, off, count, \
190 KOVAPLUS_SIZE_ ## THINGY, KOVAPLUS_COMMAND_ ## THINGY); \
191}
192
193#define KOVAPLUS_SYSFS_RW(thingy, THINGY) \
194KOVAPLUS_SYSFS_W(thingy, THINGY) \
195KOVAPLUS_SYSFS_R(thingy, THINGY)
196
197#define KOVAPLUS_BIN_ATTRIBUTE_RW(thingy, THINGY) \
198KOVAPLUS_SYSFS_RW(thingy, THINGY); \
199static struct bin_attribute bin_attr_##thingy = { \
200 .attr = { .name = #thingy, .mode = 0660 }, \
201 .size = KOVAPLUS_SIZE_ ## THINGY, \
202 .read = kovaplus_sysfs_read_ ## thingy, \
203 .write = kovaplus_sysfs_write_ ## thingy \
204}
205
206#define KOVAPLUS_BIN_ATTRIBUTE_W(thingy, THINGY) \
207KOVAPLUS_SYSFS_W(thingy, THINGY); \
208static struct bin_attribute bin_attr_##thingy = { \
209 .attr = { .name = #thingy, .mode = 0220 }, \
210 .size = KOVAPLUS_SIZE_ ## THINGY, \
211 .write = kovaplus_sysfs_write_ ## thingy \
212}
213KOVAPLUS_BIN_ATTRIBUTE_W(control, CONTROL);
214KOVAPLUS_BIN_ATTRIBUTE_RW(info, INFO);
215KOVAPLUS_BIN_ATTRIBUTE_RW(profile_settings, PROFILE_SETTINGS);
216KOVAPLUS_BIN_ATTRIBUTE_RW(profile_buttons, PROFILE_BUTTONS);
217
218static ssize_t kovaplus_sysfs_read_profilex_settings(struct file *fp,
219 struct kobject *kobj, struct bin_attribute *attr, char *buf,
220 loff_t off, size_t count)
221{
222 struct device *dev = kobj_to_dev(kobj)->parent->parent;
223 struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
224 ssize_t retval;
225
226 retval = kovaplus_select_profile(usb_dev, *(uint *)(attr->private),
227 KOVAPLUS_CONTROL_REQUEST_PROFILE_SETTINGS);
228 if (retval)
229 return retval;
230
231 return kovaplus_sysfs_read(fp, kobj, buf, off, count,
232 KOVAPLUS_SIZE_PROFILE_SETTINGS,
233 KOVAPLUS_COMMAND_PROFILE_SETTINGS);
234}
235
236static ssize_t kovaplus_sysfs_read_profilex_buttons(struct file *fp,
237 struct kobject *kobj, struct bin_attribute *attr, char *buf,
238 loff_t off, size_t count)
239{
240 struct device *dev = kobj_to_dev(kobj)->parent->parent;
241 struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
242 ssize_t retval;
243
244 retval = kovaplus_select_profile(usb_dev, *(uint *)(attr->private),
245 KOVAPLUS_CONTROL_REQUEST_PROFILE_BUTTONS);
246 if (retval)
247 return retval;
248
249 return kovaplus_sysfs_read(fp, kobj, buf, off, count,
250 KOVAPLUS_SIZE_PROFILE_BUTTONS,
251 KOVAPLUS_COMMAND_PROFILE_BUTTONS);
252}
253
254#define PROFILE_ATTR(number) \
255static struct bin_attribute bin_attr_profile##number##_settings = { \
256 .attr = { .name = "profile" #number "_settings", .mode = 0440 }, \
257 .size = KOVAPLUS_SIZE_PROFILE_SETTINGS, \
258 .read = kovaplus_sysfs_read_profilex_settings, \
259 .private = &profile_numbers[number-1], \
260}; \
261static struct bin_attribute bin_attr_profile##number##_buttons = { \
262 .attr = { .name = "profile" #number "_buttons", .mode = 0440 }, \
263 .size = KOVAPLUS_SIZE_PROFILE_BUTTONS, \
264 .read = kovaplus_sysfs_read_profilex_buttons, \
265 .private = &profile_numbers[number-1], \
266};
267PROFILE_ATTR(1);
268PROFILE_ATTR(2);
269PROFILE_ATTR(3);
270PROFILE_ATTR(4);
271PROFILE_ATTR(5);
272
273static ssize_t kovaplus_sysfs_show_actual_profile(struct device *dev,
274 struct device_attribute *attr, char *buf)
275{
276 struct kovaplus_device *kovaplus =
277 hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
278 return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->actual_profile);
279}
280
281static ssize_t kovaplus_sysfs_set_actual_profile(struct device *dev,
282 struct device_attribute *attr, char const *buf, size_t size)
283{
284 struct kovaplus_device *kovaplus;
285 struct usb_device *usb_dev;
286 unsigned long profile;
287 int retval;
288 struct kovaplus_roccat_report roccat_report;
289
290 dev = dev->parent->parent;
291 kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
292 usb_dev = interface_to_usbdev(to_usb_interface(dev));
293
294 retval = kstrtoul(buf, 10, &profile);
295 if (retval)
296 return retval;
297
298 if (profile >= 5)
299 return -EINVAL;
300
301 mutex_lock(&kovaplus->kovaplus_lock);
302 retval = kovaplus_set_actual_profile(usb_dev, profile);
303 if (retval) {
304 mutex_unlock(&kovaplus->kovaplus_lock);
305 return retval;
306 }
307
308 kovaplus_profile_activated(kovaplus, profile);
309
310 roccat_report.type = KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE_1;
311 roccat_report.profile = profile + 1;
312 roccat_report.button = 0;
313 roccat_report.data1 = profile + 1;
314 roccat_report.data2 = 0;
315 roccat_report_event(kovaplus->chrdev_minor,
316 (uint8_t const *)&roccat_report);
317
318 mutex_unlock(&kovaplus->kovaplus_lock);
319
320 return size;
321}
322static DEVICE_ATTR(actual_profile, 0660,
323 kovaplus_sysfs_show_actual_profile,
324 kovaplus_sysfs_set_actual_profile);
325
326static ssize_t kovaplus_sysfs_show_actual_cpi(struct device *dev,
327 struct device_attribute *attr, char *buf)
328{
329 struct kovaplus_device *kovaplus =
330 hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
331 return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->actual_cpi);
332}
333static DEVICE_ATTR(actual_cpi, 0440, kovaplus_sysfs_show_actual_cpi, NULL);
334
335static ssize_t kovaplus_sysfs_show_actual_sensitivity_x(struct device *dev,
336 struct device_attribute *attr, char *buf)
337{
338 struct kovaplus_device *kovaplus =
339 hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
340 return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->actual_x_sensitivity);
341}
342static DEVICE_ATTR(actual_sensitivity_x, 0440,
343 kovaplus_sysfs_show_actual_sensitivity_x, NULL);
344
345static ssize_t kovaplus_sysfs_show_actual_sensitivity_y(struct device *dev,
346 struct device_attribute *attr, char *buf)
347{
348 struct kovaplus_device *kovaplus =
349 hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
350 return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->actual_y_sensitivity);
351}
352static DEVICE_ATTR(actual_sensitivity_y, 0440,
353 kovaplus_sysfs_show_actual_sensitivity_y, NULL);
354
355static ssize_t kovaplus_sysfs_show_firmware_version(struct device *dev,
356 struct device_attribute *attr, char *buf)
357{
358 struct kovaplus_device *kovaplus;
359 struct usb_device *usb_dev;
360 struct kovaplus_info info;
361
362 dev = dev->parent->parent;
363 kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
364 usb_dev = interface_to_usbdev(to_usb_interface(dev));
365
366 mutex_lock(&kovaplus->kovaplus_lock);
367 roccat_common2_receive(usb_dev, KOVAPLUS_COMMAND_INFO,
368 &info, KOVAPLUS_SIZE_INFO);
369 mutex_unlock(&kovaplus->kovaplus_lock);
370
371 return snprintf(buf, PAGE_SIZE, "%d\n", info.firmware_version);
372}
373static DEVICE_ATTR(firmware_version, 0440,
374 kovaplus_sysfs_show_firmware_version, NULL);
375
376static struct attribute *kovaplus_attrs[] = {
377 &dev_attr_actual_cpi.attr,
378 &dev_attr_firmware_version.attr,
379 &dev_attr_actual_profile.attr,
380 &dev_attr_actual_sensitivity_x.attr,
381 &dev_attr_actual_sensitivity_y.attr,
382 NULL,
383};
384
385static struct bin_attribute *kovaplus_bin_attributes[] = {
386 &bin_attr_control,
387 &bin_attr_info,
388 &bin_attr_profile_settings,
389 &bin_attr_profile_buttons,
390 &bin_attr_profile1_settings,
391 &bin_attr_profile2_settings,
392 &bin_attr_profile3_settings,
393 &bin_attr_profile4_settings,
394 &bin_attr_profile5_settings,
395 &bin_attr_profile1_buttons,
396 &bin_attr_profile2_buttons,
397 &bin_attr_profile3_buttons,
398 &bin_attr_profile4_buttons,
399 &bin_attr_profile5_buttons,
400 NULL,
401};
402
403static const struct attribute_group kovaplus_group = {
404 .attrs = kovaplus_attrs,
405 .bin_attrs = kovaplus_bin_attributes,
406};
407
408static const struct attribute_group *kovaplus_groups[] = {
409 &kovaplus_group,
410 NULL,
411};
412
413static int kovaplus_init_kovaplus_device_struct(struct usb_device *usb_dev,
414 struct kovaplus_device *kovaplus)
415{
416 int retval, i;
417 static uint wait = 70;
418
419 mutex_init(&kovaplus->kovaplus_lock);
420
421 for (i = 0; i < 5; ++i) {
422 msleep(wait);
423 retval = kovaplus_get_profile_settings(usb_dev,
424 &kovaplus->profile_settings[i], i);
425 if (retval)
426 return retval;
427
428 msleep(wait);
429 retval = kovaplus_get_profile_buttons(usb_dev,
430 &kovaplus->profile_buttons[i], i);
431 if (retval)
432 return retval;
433 }
434
435 msleep(wait);
436 retval = kovaplus_get_actual_profile(usb_dev);
437 if (retval < 0)
438 return retval;
439 kovaplus_profile_activated(kovaplus, retval);
440
441 return 0;
442}
443
444static int kovaplus_init_specials(struct hid_device *hdev)
445{
446 struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
447 struct usb_device *usb_dev = interface_to_usbdev(intf);
448 struct kovaplus_device *kovaplus;
449 int retval;
450
451 if (intf->cur_altsetting->desc.bInterfaceProtocol
452 == USB_INTERFACE_PROTOCOL_MOUSE) {
453
454 kovaplus = kzalloc(sizeof(*kovaplus), GFP_KERNEL);
455 if (!kovaplus) {
456 hid_err(hdev, "can't alloc device descriptor\n");
457 return -ENOMEM;
458 }
459 hid_set_drvdata(hdev, kovaplus);
460
461 retval = kovaplus_init_kovaplus_device_struct(usb_dev, kovaplus);
462 if (retval) {
463 hid_err(hdev, "couldn't init struct kovaplus_device\n");
464 goto exit_free;
465 }
466
467 retval = roccat_connect(kovaplus_class, hdev,
468 sizeof(struct kovaplus_roccat_report));
469 if (retval < 0) {
470 hid_err(hdev, "couldn't init char dev\n");
471 } else {
472 kovaplus->chrdev_minor = retval;
473 kovaplus->roccat_claimed = 1;
474 }
475
476 } else {
477 hid_set_drvdata(hdev, NULL);
478 }
479
480 return 0;
481exit_free:
482 kfree(kovaplus);
483 return retval;
484}
485
486static void kovaplus_remove_specials(struct hid_device *hdev)
487{
488 struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
489 struct kovaplus_device *kovaplus;
490
491 if (intf->cur_altsetting->desc.bInterfaceProtocol
492 == USB_INTERFACE_PROTOCOL_MOUSE) {
493 kovaplus = hid_get_drvdata(hdev);
494 if (kovaplus->roccat_claimed)
495 roccat_disconnect(kovaplus->chrdev_minor);
496 kfree(kovaplus);
497 }
498}
499
500static int kovaplus_probe(struct hid_device *hdev,
501 const struct hid_device_id *id)
502{
503 int retval;
504
505 retval = hid_parse(hdev);
506 if (retval) {
507 hid_err(hdev, "parse failed\n");
508 goto exit;
509 }
510
511 retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
512 if (retval) {
513 hid_err(hdev, "hw start failed\n");
514 goto exit;
515 }
516
517 retval = kovaplus_init_specials(hdev);
518 if (retval) {
519 hid_err(hdev, "couldn't install mouse\n");
520 goto exit_stop;
521 }
522
523 return 0;
524
525exit_stop:
526 hid_hw_stop(hdev);
527exit:
528 return retval;
529}
530
531static void kovaplus_remove(struct hid_device *hdev)
532{
533 kovaplus_remove_specials(hdev);
534 hid_hw_stop(hdev);
535}
536
537static void kovaplus_keep_values_up_to_date(struct kovaplus_device *kovaplus,
538 u8 const *data)
539{
540 struct kovaplus_mouse_report_button const *button_report;
541
542 if (data[0] != KOVAPLUS_MOUSE_REPORT_NUMBER_BUTTON)
543 return;
544
545 button_report = (struct kovaplus_mouse_report_button const *)data;
546
547 switch (button_report->type) {
548 case KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE_1:
549 kovaplus_profile_activated(kovaplus, button_report->data1 - 1);
550 break;
551 case KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_CPI:
552 kovaplus->actual_cpi = kovaplus_convert_event_cpi(button_report->data1);
553 break;
554 case KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_SENSITIVITY:
555 kovaplus->actual_x_sensitivity = button_report->data1;
556 kovaplus->actual_y_sensitivity = button_report->data2;
557 break;
558 default:
559 break;
560 }
561}
562
563static void kovaplus_report_to_chrdev(struct kovaplus_device const *kovaplus,
564 u8 const *data)
565{
566 struct kovaplus_roccat_report roccat_report;
567 struct kovaplus_mouse_report_button const *button_report;
568
569 if (data[0] != KOVAPLUS_MOUSE_REPORT_NUMBER_BUTTON)
570 return;
571
572 button_report = (struct kovaplus_mouse_report_button const *)data;
573
574 if (button_report->type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE_2)
575 return;
576
577 roccat_report.type = button_report->type;
578 roccat_report.profile = kovaplus->actual_profile + 1;
579
580 if (roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_MACRO ||
581 roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_SHORTCUT ||
582 roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_QUICKLAUNCH ||
583 roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_TIMER)
584 roccat_report.button = button_report->data1;
585 else
586 roccat_report.button = 0;
587
588 if (roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_CPI)
589 roccat_report.data1 = kovaplus_convert_event_cpi(button_report->data1);
590 else
591 roccat_report.data1 = button_report->data1;
592
593 roccat_report.data2 = button_report->data2;
594
595 roccat_report_event(kovaplus->chrdev_minor,
596 (uint8_t const *)&roccat_report);
597}
598
599static int kovaplus_raw_event(struct hid_device *hdev,
600 struct hid_report *report, u8 *data, int size)
601{
602 struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
603 struct kovaplus_device *kovaplus = hid_get_drvdata(hdev);
604
605 if (intf->cur_altsetting->desc.bInterfaceProtocol
606 != USB_INTERFACE_PROTOCOL_MOUSE)
607 return 0;
608
609 if (kovaplus == NULL)
610 return 0;
611
612 kovaplus_keep_values_up_to_date(kovaplus, data);
613
614 if (kovaplus->roccat_claimed)
615 kovaplus_report_to_chrdev(kovaplus, data);
616
617 return 0;
618}
619
620static const struct hid_device_id kovaplus_devices[] = {
621 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KOVAPLUS) },
622 { }
623};
624
625MODULE_DEVICE_TABLE(hid, kovaplus_devices);
626
627static struct hid_driver kovaplus_driver = {
628 .name = "kovaplus",
629 .id_table = kovaplus_devices,
630 .probe = kovaplus_probe,
631 .remove = kovaplus_remove,
632 .raw_event = kovaplus_raw_event
633};
634
635static int __init kovaplus_init(void)
636{
637 int retval;
638
639 kovaplus_class = class_create(THIS_MODULE, "kovaplus");
640 if (IS_ERR(kovaplus_class))
641 return PTR_ERR(kovaplus_class);
642 kovaplus_class->dev_groups = kovaplus_groups;
643
644 retval = hid_register_driver(&kovaplus_driver);
645 if (retval)
646 class_destroy(kovaplus_class);
647 return retval;
648}
649
650static void __exit kovaplus_exit(void)
651{
652 hid_unregister_driver(&kovaplus_driver);
653 class_destroy(kovaplus_class);
654}
655
656module_init(kovaplus_init);
657module_exit(kovaplus_exit);
658
659MODULE_AUTHOR("Stefan Achatz");
660MODULE_DESCRIPTION("USB Roccat Kova[+] driver");
661MODULE_LICENSE("GPL v2");
662
