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