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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 if (new_profile_index >= ARRAY_SIZE(kovaplus->profile_settings))
41 return;
42 kovaplus->actual_profile = new_profile_index;
43 kovaplus->actual_cpi = kovaplus->profile_settings[new_profile_index].cpi_startup_level;
44 kovaplus->actual_x_sensitivity = kovaplus->profile_settings[new_profile_index].sensitivity_x;
45 kovaplus->actual_y_sensitivity = kovaplus->profile_settings[new_profile_index].sensitivity_y;
46}
47
48static int kovaplus_send_control(struct usb_device *usb_dev, uint value,
49 enum kovaplus_control_requests request)
50{
51 int retval;
52 struct roccat_common2_control control;
53
54 if ((request == KOVAPLUS_CONTROL_REQUEST_PROFILE_SETTINGS ||
55 request == KOVAPLUS_CONTROL_REQUEST_PROFILE_BUTTONS) &&
56 value > 4)
57 return -EINVAL;
58
59 control.command = ROCCAT_COMMON_COMMAND_CONTROL;
60 control.value = value;
61 control.request = request;
62
63 retval = roccat_common2_send(usb_dev, ROCCAT_COMMON_COMMAND_CONTROL,
64 &control, sizeof(struct roccat_common2_control));
65
66 return retval;
67}
68
69static int kovaplus_select_profile(struct usb_device *usb_dev, uint number,
70 enum kovaplus_control_requests request)
71{
72 return kovaplus_send_control(usb_dev, number, request);
73}
74
75static int kovaplus_get_profile_settings(struct usb_device *usb_dev,
76 struct kovaplus_profile_settings *buf, uint number)
77{
78 int retval;
79
80 retval = kovaplus_select_profile(usb_dev, number,
81 KOVAPLUS_CONTROL_REQUEST_PROFILE_SETTINGS);
82 if (retval)
83 return retval;
84
85 return roccat_common2_receive(usb_dev, KOVAPLUS_COMMAND_PROFILE_SETTINGS,
86 buf, KOVAPLUS_SIZE_PROFILE_SETTINGS);
87}
88
89static int kovaplus_get_profile_buttons(struct usb_device *usb_dev,
90 struct kovaplus_profile_buttons *buf, int number)
91{
92 int retval;
93
94 retval = kovaplus_select_profile(usb_dev, number,
95 KOVAPLUS_CONTROL_REQUEST_PROFILE_BUTTONS);
96 if (retval)
97 return retval;
98
99 return roccat_common2_receive(usb_dev, KOVAPLUS_COMMAND_PROFILE_BUTTONS,
100 buf, KOVAPLUS_SIZE_PROFILE_BUTTONS);
101}
102
103
104static int kovaplus_get_actual_profile(struct usb_device *usb_dev)
105{
106 struct kovaplus_actual_profile buf;
107 int retval;
108
109 retval = roccat_common2_receive(usb_dev, KOVAPLUS_COMMAND_ACTUAL_PROFILE,
110 &buf, sizeof(struct kovaplus_actual_profile));
111
112 return retval ? retval : buf.actual_profile;
113}
114
115static int kovaplus_set_actual_profile(struct usb_device *usb_dev,
116 int new_profile)
117{
118 struct kovaplus_actual_profile buf;
119
120 buf.command = KOVAPLUS_COMMAND_ACTUAL_PROFILE;
121 buf.size = sizeof(struct kovaplus_actual_profile);
122 buf.actual_profile = new_profile;
123
124 return roccat_common2_send_with_status(usb_dev,
125 KOVAPLUS_COMMAND_ACTUAL_PROFILE,
126 &buf, sizeof(struct kovaplus_actual_profile));
127}
128
129static ssize_t kovaplus_sysfs_read(struct file *fp, struct kobject *kobj,
130 char *buf, loff_t off, size_t count,
131 size_t real_size, uint command)
132{
133 struct device *dev = kobj_to_dev(kobj)->parent->parent;
134 struct kovaplus_device *kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
135 struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
136 int retval;
137
138 if (off >= real_size)
139 return 0;
140
141 if (off != 0 || count != real_size)
142 return -EINVAL;
143
144 mutex_lock(&kovaplus->kovaplus_lock);
145 retval = roccat_common2_receive(usb_dev, command, buf, real_size);
146 mutex_unlock(&kovaplus->kovaplus_lock);
147
148 if (retval)
149 return retval;
150
151 return real_size;
152}
153
154static ssize_t kovaplus_sysfs_write(struct file *fp, struct kobject *kobj,
155 void const *buf, loff_t off, size_t count,
156 size_t real_size, uint command)
157{
158 struct device *dev = kobj_to_dev(kobj)->parent->parent;
159 struct kovaplus_device *kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
160 struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
161 int retval;
162
163 if (off != 0 || count != real_size)
164 return -EINVAL;
165
166 mutex_lock(&kovaplus->kovaplus_lock);
167 retval = roccat_common2_send_with_status(usb_dev, command,
168 buf, real_size);
169 mutex_unlock(&kovaplus->kovaplus_lock);
170
171 if (retval)
172 return retval;
173
174 return real_size;
175}
176
177#define KOVAPLUS_SYSFS_W(thingy, THINGY) \
178static ssize_t kovaplus_sysfs_write_ ## thingy(struct file *fp, \
179 struct kobject *kobj, struct bin_attribute *attr, char *buf, \
180 loff_t off, size_t count) \
181{ \
182 return kovaplus_sysfs_write(fp, kobj, buf, off, count, \
183 KOVAPLUS_SIZE_ ## THINGY, KOVAPLUS_COMMAND_ ## THINGY); \
184}
185
186#define KOVAPLUS_SYSFS_R(thingy, THINGY) \
187static ssize_t kovaplus_sysfs_read_ ## thingy(struct file *fp, \
188 struct kobject *kobj, struct bin_attribute *attr, char *buf, \
189 loff_t off, size_t count) \
190{ \
191 return kovaplus_sysfs_read(fp, kobj, buf, off, count, \
192 KOVAPLUS_SIZE_ ## THINGY, KOVAPLUS_COMMAND_ ## THINGY); \
193}
194
195#define KOVAPLUS_SYSFS_RW(thingy, THINGY) \
196KOVAPLUS_SYSFS_W(thingy, THINGY) \
197KOVAPLUS_SYSFS_R(thingy, THINGY)
198
199#define KOVAPLUS_BIN_ATTRIBUTE_RW(thingy, THINGY) \
200KOVAPLUS_SYSFS_RW(thingy, THINGY); \
201static struct bin_attribute bin_attr_##thingy = { \
202 .attr = { .name = #thingy, .mode = 0660 }, \
203 .size = KOVAPLUS_SIZE_ ## THINGY, \
204 .read = kovaplus_sysfs_read_ ## thingy, \
205 .write = kovaplus_sysfs_write_ ## thingy \
206}
207
208#define KOVAPLUS_BIN_ATTRIBUTE_W(thingy, THINGY) \
209KOVAPLUS_SYSFS_W(thingy, THINGY); \
210static struct bin_attribute bin_attr_##thingy = { \
211 .attr = { .name = #thingy, .mode = 0220 }, \
212 .size = KOVAPLUS_SIZE_ ## THINGY, \
213 .write = kovaplus_sysfs_write_ ## thingy \
214}
215KOVAPLUS_BIN_ATTRIBUTE_W(control, CONTROL);
216KOVAPLUS_BIN_ATTRIBUTE_RW(info, INFO);
217KOVAPLUS_BIN_ATTRIBUTE_RW(profile_settings, PROFILE_SETTINGS);
218KOVAPLUS_BIN_ATTRIBUTE_RW(profile_buttons, PROFILE_BUTTONS);
219
220static ssize_t kovaplus_sysfs_read_profilex_settings(struct file *fp,
221 struct kobject *kobj, struct bin_attribute *attr, char *buf,
222 loff_t off, size_t count)
223{
224 struct device *dev = kobj_to_dev(kobj)->parent->parent;
225 struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
226 ssize_t retval;
227
228 retval = kovaplus_select_profile(usb_dev, *(uint *)(attr->private),
229 KOVAPLUS_CONTROL_REQUEST_PROFILE_SETTINGS);
230 if (retval)
231 return retval;
232
233 return kovaplus_sysfs_read(fp, kobj, buf, off, count,
234 KOVAPLUS_SIZE_PROFILE_SETTINGS,
235 KOVAPLUS_COMMAND_PROFILE_SETTINGS);
236}
237
238static ssize_t kovaplus_sysfs_read_profilex_buttons(struct file *fp,
239 struct kobject *kobj, struct bin_attribute *attr, char *buf,
240 loff_t off, size_t count)
241{
242 struct device *dev = kobj_to_dev(kobj)->parent->parent;
243 struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
244 ssize_t retval;
245
246 retval = kovaplus_select_profile(usb_dev, *(uint *)(attr->private),
247 KOVAPLUS_CONTROL_REQUEST_PROFILE_BUTTONS);
248 if (retval)
249 return retval;
250
251 return kovaplus_sysfs_read(fp, kobj, buf, off, count,
252 KOVAPLUS_SIZE_PROFILE_BUTTONS,
253 KOVAPLUS_COMMAND_PROFILE_BUTTONS);
254}
255
256#define PROFILE_ATTR(number) \
257static struct bin_attribute bin_attr_profile##number##_settings = { \
258 .attr = { .name = "profile" #number "_settings", .mode = 0440 }, \
259 .size = KOVAPLUS_SIZE_PROFILE_SETTINGS, \
260 .read = kovaplus_sysfs_read_profilex_settings, \
261 .private = &profile_numbers[number-1], \
262}; \
263static struct bin_attribute bin_attr_profile##number##_buttons = { \
264 .attr = { .name = "profile" #number "_buttons", .mode = 0440 }, \
265 .size = KOVAPLUS_SIZE_PROFILE_BUTTONS, \
266 .read = kovaplus_sysfs_read_profilex_buttons, \
267 .private = &profile_numbers[number-1], \
268};
269PROFILE_ATTR(1);
270PROFILE_ATTR(2);
271PROFILE_ATTR(3);
272PROFILE_ATTR(4);
273PROFILE_ATTR(5);
274
275static ssize_t kovaplus_sysfs_show_actual_profile(struct device *dev,
276 struct device_attribute *attr, char *buf)
277{
278 struct kovaplus_device *kovaplus =
279 hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
280 return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->actual_profile);
281}
282
283static ssize_t kovaplus_sysfs_set_actual_profile(struct device *dev,
284 struct device_attribute *attr, char const *buf, size_t size)
285{
286 struct kovaplus_device *kovaplus;
287 struct usb_device *usb_dev;
288 unsigned long profile;
289 int retval;
290 struct kovaplus_roccat_report roccat_report;
291
292 dev = dev->parent->parent;
293 kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
294 usb_dev = interface_to_usbdev(to_usb_interface(dev));
295
296 retval = kstrtoul(buf, 10, &profile);
297 if (retval)
298 return retval;
299
300 if (profile >= 5)
301 return -EINVAL;
302
303 mutex_lock(&kovaplus->kovaplus_lock);
304 retval = kovaplus_set_actual_profile(usb_dev, profile);
305 if (retval) {
306 mutex_unlock(&kovaplus->kovaplus_lock);
307 return retval;
308 }
309
310 kovaplus_profile_activated(kovaplus, profile);
311
312 roccat_report.type = KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE_1;
313 roccat_report.profile = profile + 1;
314 roccat_report.button = 0;
315 roccat_report.data1 = profile + 1;
316 roccat_report.data2 = 0;
317 roccat_report_event(kovaplus->chrdev_minor,
318 (uint8_t const *)&roccat_report);
319
320 mutex_unlock(&kovaplus->kovaplus_lock);
321
322 return size;
323}
324static DEVICE_ATTR(actual_profile, 0660,
325 kovaplus_sysfs_show_actual_profile,
326 kovaplus_sysfs_set_actual_profile);
327
328static ssize_t kovaplus_sysfs_show_actual_cpi(struct device *dev,
329 struct device_attribute *attr, char *buf)
330{
331 struct kovaplus_device *kovaplus =
332 hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
333 return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->actual_cpi);
334}
335static DEVICE_ATTR(actual_cpi, 0440, kovaplus_sysfs_show_actual_cpi, NULL);
336
337static ssize_t kovaplus_sysfs_show_actual_sensitivity_x(struct device *dev,
338 struct device_attribute *attr, char *buf)
339{
340 struct kovaplus_device *kovaplus =
341 hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
342 return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->actual_x_sensitivity);
343}
344static DEVICE_ATTR(actual_sensitivity_x, 0440,
345 kovaplus_sysfs_show_actual_sensitivity_x, NULL);
346
347static ssize_t kovaplus_sysfs_show_actual_sensitivity_y(struct device *dev,
348 struct device_attribute *attr, char *buf)
349{
350 struct kovaplus_device *kovaplus =
351 hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
352 return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->actual_y_sensitivity);
353}
354static DEVICE_ATTR(actual_sensitivity_y, 0440,
355 kovaplus_sysfs_show_actual_sensitivity_y, NULL);
356
357static ssize_t kovaplus_sysfs_show_firmware_version(struct device *dev,
358 struct device_attribute *attr, char *buf)
359{
360 struct kovaplus_device *kovaplus;
361 struct usb_device *usb_dev;
362 struct kovaplus_info info;
363
364 dev = dev->parent->parent;
365 kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
366 usb_dev = interface_to_usbdev(to_usb_interface(dev));
367
368 mutex_lock(&kovaplus->kovaplus_lock);
369 roccat_common2_receive(usb_dev, KOVAPLUS_COMMAND_INFO,
370 &info, KOVAPLUS_SIZE_INFO);
371 mutex_unlock(&kovaplus->kovaplus_lock);
372
373 return snprintf(buf, PAGE_SIZE, "%d\n", info.firmware_version);
374}
375static DEVICE_ATTR(firmware_version, 0440,
376 kovaplus_sysfs_show_firmware_version, NULL);
377
378static struct attribute *kovaplus_attrs[] = {
379 &dev_attr_actual_cpi.attr,
380 &dev_attr_firmware_version.attr,
381 &dev_attr_actual_profile.attr,
382 &dev_attr_actual_sensitivity_x.attr,
383 &dev_attr_actual_sensitivity_y.attr,
384 NULL,
385};
386
387static struct bin_attribute *kovaplus_bin_attributes[] = {
388 &bin_attr_control,
389 &bin_attr_info,
390 &bin_attr_profile_settings,
391 &bin_attr_profile_buttons,
392 &bin_attr_profile1_settings,
393 &bin_attr_profile2_settings,
394 &bin_attr_profile3_settings,
395 &bin_attr_profile4_settings,
396 &bin_attr_profile5_settings,
397 &bin_attr_profile1_buttons,
398 &bin_attr_profile2_buttons,
399 &bin_attr_profile3_buttons,
400 &bin_attr_profile4_buttons,
401 &bin_attr_profile5_buttons,
402 NULL,
403};
404
405static const struct attribute_group kovaplus_group = {
406 .attrs = kovaplus_attrs,
407 .bin_attrs = kovaplus_bin_attributes,
408};
409
410static const struct attribute_group *kovaplus_groups[] = {
411 &kovaplus_group,
412 NULL,
413};
414
415static int kovaplus_init_kovaplus_device_struct(struct usb_device *usb_dev,
416 struct kovaplus_device *kovaplus)
417{
418 int retval, i;
419 static uint wait = 70;
420
421 mutex_init(&kovaplus->kovaplus_lock);
422
423 for (i = 0; i < 5; ++i) {
424 msleep(wait);
425 retval = kovaplus_get_profile_settings(usb_dev,
426 &kovaplus->profile_settings[i], i);
427 if (retval)
428 return retval;
429
430 msleep(wait);
431 retval = kovaplus_get_profile_buttons(usb_dev,
432 &kovaplus->profile_buttons[i], i);
433 if (retval)
434 return retval;
435 }
436
437 msleep(wait);
438 retval = kovaplus_get_actual_profile(usb_dev);
439 if (retval < 0)
440 return retval;
441 kovaplus_profile_activated(kovaplus, retval);
442
443 return 0;
444}
445
446static int kovaplus_init_specials(struct hid_device *hdev)
447{
448 struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
449 struct usb_device *usb_dev = interface_to_usbdev(intf);
450 struct kovaplus_device *kovaplus;
451 int retval;
452
453 if (intf->cur_altsetting->desc.bInterfaceProtocol
454 == USB_INTERFACE_PROTOCOL_MOUSE) {
455
456 kovaplus = kzalloc(sizeof(*kovaplus), GFP_KERNEL);
457 if (!kovaplus) {
458 hid_err(hdev, "can't alloc device descriptor\n");
459 return -ENOMEM;
460 }
461 hid_set_drvdata(hdev, kovaplus);
462
463 retval = kovaplus_init_kovaplus_device_struct(usb_dev, kovaplus);
464 if (retval) {
465 hid_err(hdev, "couldn't init struct kovaplus_device\n");
466 goto exit_free;
467 }
468
469 retval = roccat_connect(kovaplus_class, hdev,
470 sizeof(struct kovaplus_roccat_report));
471 if (retval < 0) {
472 hid_err(hdev, "couldn't init char dev\n");
473 } else {
474 kovaplus->chrdev_minor = retval;
475 kovaplus->roccat_claimed = 1;
476 }
477
478 } else {
479 hid_set_drvdata(hdev, NULL);
480 }
481
482 return 0;
483exit_free:
484 kfree(kovaplus);
485 return retval;
486}
487
488static void kovaplus_remove_specials(struct hid_device *hdev)
489{
490 struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
491 struct kovaplus_device *kovaplus;
492
493 if (intf->cur_altsetting->desc.bInterfaceProtocol
494 == USB_INTERFACE_PROTOCOL_MOUSE) {
495 kovaplus = hid_get_drvdata(hdev);
496 if (kovaplus->roccat_claimed)
497 roccat_disconnect(kovaplus->chrdev_minor);
498 kfree(kovaplus);
499 }
500}
501
502static int kovaplus_probe(struct hid_device *hdev,
503 const struct hid_device_id *id)
504{
505 int retval;
506
507 retval = hid_parse(hdev);
508 if (retval) {
509 hid_err(hdev, "parse failed\n");
510 goto exit;
511 }
512
513 retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
514 if (retval) {
515 hid_err(hdev, "hw start failed\n");
516 goto exit;
517 }
518
519 retval = kovaplus_init_specials(hdev);
520 if (retval) {
521 hid_err(hdev, "couldn't install mouse\n");
522 goto exit_stop;
523 }
524
525 return 0;
526
527exit_stop:
528 hid_hw_stop(hdev);
529exit:
530 return retval;
531}
532
533static void kovaplus_remove(struct hid_device *hdev)
534{
535 kovaplus_remove_specials(hdev);
536 hid_hw_stop(hdev);
537}
538
539static void kovaplus_keep_values_up_to_date(struct kovaplus_device *kovaplus,
540 u8 const *data)
541{
542 struct kovaplus_mouse_report_button const *button_report;
543
544 if (data[0] != KOVAPLUS_MOUSE_REPORT_NUMBER_BUTTON)
545 return;
546
547 button_report = (struct kovaplus_mouse_report_button const *)data;
548
549 switch (button_report->type) {
550 case KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE_1:
551 kovaplus_profile_activated(kovaplus, button_report->data1 - 1);
552 break;
553 case KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_CPI:
554 kovaplus->actual_cpi = kovaplus_convert_event_cpi(button_report->data1);
555 break;
556 case KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_SENSITIVITY:
557 kovaplus->actual_x_sensitivity = button_report->data1;
558 kovaplus->actual_y_sensitivity = button_report->data2;
559 break;
560 default:
561 break;
562 }
563}
564
565static void kovaplus_report_to_chrdev(struct kovaplus_device const *kovaplus,
566 u8 const *data)
567{
568 struct kovaplus_roccat_report roccat_report;
569 struct kovaplus_mouse_report_button const *button_report;
570
571 if (data[0] != KOVAPLUS_MOUSE_REPORT_NUMBER_BUTTON)
572 return;
573
574 button_report = (struct kovaplus_mouse_report_button const *)data;
575
576 if (button_report->type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE_2)
577 return;
578
579 roccat_report.type = button_report->type;
580 roccat_report.profile = kovaplus->actual_profile + 1;
581
582 if (roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_MACRO ||
583 roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_SHORTCUT ||
584 roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_QUICKLAUNCH ||
585 roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_TIMER)
586 roccat_report.button = button_report->data1;
587 else
588 roccat_report.button = 0;
589
590 if (roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_CPI)
591 roccat_report.data1 = kovaplus_convert_event_cpi(button_report->data1);
592 else
593 roccat_report.data1 = button_report->data1;
594
595 roccat_report.data2 = button_report->data2;
596
597 roccat_report_event(kovaplus->chrdev_minor,
598 (uint8_t const *)&roccat_report);
599}
600
601static int kovaplus_raw_event(struct hid_device *hdev,
602 struct hid_report *report, u8 *data, int size)
603{
604 struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
605 struct kovaplus_device *kovaplus = hid_get_drvdata(hdev);
606
607 if (intf->cur_altsetting->desc.bInterfaceProtocol
608 != USB_INTERFACE_PROTOCOL_MOUSE)
609 return 0;
610
611 if (kovaplus == NULL)
612 return 0;
613
614 kovaplus_keep_values_up_to_date(kovaplus, data);
615
616 if (kovaplus->roccat_claimed)
617 kovaplus_report_to_chrdev(kovaplus, data);
618
619 return 0;
620}
621
622static const struct hid_device_id kovaplus_devices[] = {
623 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KOVAPLUS) },
624 { }
625};
626
627MODULE_DEVICE_TABLE(hid, kovaplus_devices);
628
629static struct hid_driver kovaplus_driver = {
630 .name = "kovaplus",
631 .id_table = kovaplus_devices,
632 .probe = kovaplus_probe,
633 .remove = kovaplus_remove,
634 .raw_event = kovaplus_raw_event
635};
636
637static int __init kovaplus_init(void)
638{
639 int retval;
640
641 kovaplus_class = class_create(THIS_MODULE, "kovaplus");
642 if (IS_ERR(kovaplus_class))
643 return PTR_ERR(kovaplus_class);
644 kovaplus_class->dev_groups = kovaplus_groups;
645
646 retval = hid_register_driver(&kovaplus_driver);
647 if (retval)
648 class_destroy(kovaplus_class);
649 return retval;
650}
651
652static void __exit kovaplus_exit(void)
653{
654 hid_unregister_driver(&kovaplus_driver);
655 class_destroy(kovaplus_class);
656}
657
658module_init(kovaplus_init);
659module_exit(kovaplus_exit);
660
661MODULE_AUTHOR("Stefan Achatz");
662MODULE_DESCRIPTION("USB Roccat Kova[+] driver");
663MODULE_LICENSE("GPL v2");
664
