xref: /openbmc/linux/drivers/hid/hid-roccat-pyra.c (revision 3ddc8b84)
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  * Roccat Pyra driver for Linux
4  *
5  * Copyright (c) 2010 Stefan Achatz <erazor_de@users.sourceforge.net>
6  */
7 
8 /*
9  */
10 
11 /*
12  * Roccat Pyra is a mobile gamer mouse which comes in wired and wireless
13  * variant. Wireless variant is not tested.
14  * Userland tools can be found at http://sourceforge.net/projects/roccat
15  */
16 
17 #include <linux/device.h>
18 #include <linux/input.h>
19 #include <linux/hid.h>
20 #include <linux/module.h>
21 #include <linux/slab.h>
22 #include <linux/hid-roccat.h>
23 #include "hid-ids.h"
24 #include "hid-roccat-common.h"
25 #include "hid-roccat-pyra.h"
26 
27 static uint profile_numbers[5] = {0, 1, 2, 3, 4};
28 
29 static void profile_activated(struct pyra_device *pyra,
30 		unsigned int new_profile)
31 {
32 	if (new_profile >= ARRAY_SIZE(pyra->profile_settings))
33 		return;
34 	pyra->actual_profile = new_profile;
35 	pyra->actual_cpi = pyra->profile_settings[pyra->actual_profile].y_cpi;
36 }
37 
38 static int pyra_send_control(struct usb_device *usb_dev, int value,
39 		enum pyra_control_requests request)
40 {
41 	struct roccat_common2_control control;
42 
43 	if ((request == PYRA_CONTROL_REQUEST_PROFILE_SETTINGS ||
44 			request == PYRA_CONTROL_REQUEST_PROFILE_BUTTONS) &&
45 			(value < 0 || value > 4))
46 		return -EINVAL;
47 
48 	control.command = ROCCAT_COMMON_COMMAND_CONTROL;
49 	control.value = value;
50 	control.request = request;
51 
52 	return roccat_common2_send(usb_dev, ROCCAT_COMMON_COMMAND_CONTROL,
53 			&control, sizeof(struct roccat_common2_control));
54 }
55 
56 static int pyra_get_profile_settings(struct usb_device *usb_dev,
57 		struct pyra_profile_settings *buf, int number)
58 {
59 	int retval;
60 	retval = pyra_send_control(usb_dev, number,
61 			PYRA_CONTROL_REQUEST_PROFILE_SETTINGS);
62 	if (retval)
63 		return retval;
64 	return roccat_common2_receive(usb_dev, PYRA_COMMAND_PROFILE_SETTINGS,
65 			buf, PYRA_SIZE_PROFILE_SETTINGS);
66 }
67 
68 static int pyra_get_settings(struct usb_device *usb_dev,
69 		struct pyra_settings *buf)
70 {
71 	return roccat_common2_receive(usb_dev, PYRA_COMMAND_SETTINGS,
72 			buf, PYRA_SIZE_SETTINGS);
73 }
74 
75 static int pyra_set_settings(struct usb_device *usb_dev,
76 		struct pyra_settings const *settings)
77 {
78 	return roccat_common2_send_with_status(usb_dev,
79 			PYRA_COMMAND_SETTINGS, settings,
80 			PYRA_SIZE_SETTINGS);
81 }
82 
83 static ssize_t pyra_sysfs_read(struct file *fp, struct kobject *kobj,
84 		char *buf, loff_t off, size_t count,
85 		size_t real_size, uint command)
86 {
87 	struct device *dev = kobj_to_dev(kobj)->parent->parent;
88 	struct pyra_device *pyra = hid_get_drvdata(dev_get_drvdata(dev));
89 	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
90 	int retval;
91 
92 	if (off >= real_size)
93 		return 0;
94 
95 	if (off != 0 || count != real_size)
96 		return -EINVAL;
97 
98 	mutex_lock(&pyra->pyra_lock);
99 	retval = roccat_common2_receive(usb_dev, command, buf, real_size);
100 	mutex_unlock(&pyra->pyra_lock);
101 
102 	if (retval)
103 		return retval;
104 
105 	return real_size;
106 }
107 
108 static ssize_t pyra_sysfs_write(struct file *fp, struct kobject *kobj,
109 		void const *buf, loff_t off, size_t count,
110 		size_t real_size, uint command)
111 {
112 	struct device *dev = kobj_to_dev(kobj)->parent->parent;
113 	struct pyra_device *pyra = hid_get_drvdata(dev_get_drvdata(dev));
114 	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
115 	int retval;
116 
117 	if (off != 0 || count != real_size)
118 		return -EINVAL;
119 
120 	mutex_lock(&pyra->pyra_lock);
121 	retval = roccat_common2_send_with_status(usb_dev, command, (void *)buf, real_size);
122 	mutex_unlock(&pyra->pyra_lock);
123 
124 	if (retval)
125 		return retval;
126 
127 	return real_size;
128 }
129 
130 #define PYRA_SYSFS_W(thingy, THINGY) \
131 static ssize_t pyra_sysfs_write_ ## thingy(struct file *fp, \
132 		struct kobject *kobj, struct bin_attribute *attr, char *buf, \
133 		loff_t off, size_t count) \
134 { \
135 	return pyra_sysfs_write(fp, kobj, buf, off, count, \
136 			PYRA_SIZE_ ## THINGY, PYRA_COMMAND_ ## THINGY); \
137 }
138 
139 #define PYRA_SYSFS_R(thingy, THINGY) \
140 static ssize_t pyra_sysfs_read_ ## thingy(struct file *fp, \
141 		struct kobject *kobj, struct bin_attribute *attr, char *buf, \
142 		loff_t off, size_t count) \
143 { \
144 	return pyra_sysfs_read(fp, kobj, buf, off, count, \
145 			PYRA_SIZE_ ## THINGY, PYRA_COMMAND_ ## THINGY); \
146 }
147 
148 #define PYRA_SYSFS_RW(thingy, THINGY) \
149 PYRA_SYSFS_W(thingy, THINGY) \
150 PYRA_SYSFS_R(thingy, THINGY)
151 
152 #define PYRA_BIN_ATTRIBUTE_RW(thingy, THINGY) \
153 PYRA_SYSFS_RW(thingy, THINGY); \
154 static struct bin_attribute bin_attr_##thingy = { \
155 	.attr = { .name = #thingy, .mode = 0660 }, \
156 	.size = PYRA_SIZE_ ## THINGY, \
157 	.read = pyra_sysfs_read_ ## thingy, \
158 	.write = pyra_sysfs_write_ ## thingy \
159 }
160 
161 #define PYRA_BIN_ATTRIBUTE_R(thingy, THINGY) \
162 PYRA_SYSFS_R(thingy, THINGY); \
163 static struct bin_attribute bin_attr_##thingy = { \
164 	.attr = { .name = #thingy, .mode = 0440 }, \
165 	.size = PYRA_SIZE_ ## THINGY, \
166 	.read = pyra_sysfs_read_ ## thingy, \
167 }
168 
169 #define PYRA_BIN_ATTRIBUTE_W(thingy, THINGY) \
170 PYRA_SYSFS_W(thingy, THINGY); \
171 static struct bin_attribute bin_attr_##thingy = { \
172 	.attr = { .name = #thingy, .mode = 0220 }, \
173 	.size = PYRA_SIZE_ ## THINGY, \
174 	.write = pyra_sysfs_write_ ## thingy \
175 }
176 
177 PYRA_BIN_ATTRIBUTE_W(control, CONTROL);
178 PYRA_BIN_ATTRIBUTE_RW(info, INFO);
179 PYRA_BIN_ATTRIBUTE_RW(profile_settings, PROFILE_SETTINGS);
180 PYRA_BIN_ATTRIBUTE_RW(profile_buttons, PROFILE_BUTTONS);
181 
182 static ssize_t pyra_sysfs_read_profilex_settings(struct file *fp,
183 		struct kobject *kobj, struct bin_attribute *attr, char *buf,
184 		loff_t off, size_t count)
185 {
186 	struct device *dev = kobj_to_dev(kobj)->parent->parent;
187 	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
188 	ssize_t retval;
189 
190 	retval = pyra_send_control(usb_dev, *(uint *)(attr->private),
191 			PYRA_CONTROL_REQUEST_PROFILE_SETTINGS);
192 	if (retval)
193 		return retval;
194 
195 	return pyra_sysfs_read(fp, kobj, buf, off, count,
196 			PYRA_SIZE_PROFILE_SETTINGS,
197 			PYRA_COMMAND_PROFILE_SETTINGS);
198 }
199 
200 static ssize_t pyra_sysfs_read_profilex_buttons(struct file *fp,
201 		struct kobject *kobj, struct bin_attribute *attr, char *buf,
202 		loff_t off, size_t count)
203 {
204 	struct device *dev = kobj_to_dev(kobj)->parent->parent;
205 	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
206 	ssize_t retval;
207 
208 	retval = pyra_send_control(usb_dev, *(uint *)(attr->private),
209 			PYRA_CONTROL_REQUEST_PROFILE_BUTTONS);
210 	if (retval)
211 		return retval;
212 
213 	return pyra_sysfs_read(fp, kobj, buf, off, count,
214 			PYRA_SIZE_PROFILE_BUTTONS,
215 			PYRA_COMMAND_PROFILE_BUTTONS);
216 }
217 
218 #define PROFILE_ATTR(number)						\
219 static struct bin_attribute bin_attr_profile##number##_settings = {	\
220 	.attr = { .name = "profile" #number "_settings", .mode = 0440 },	\
221 	.size = PYRA_SIZE_PROFILE_SETTINGS,				\
222 	.read = pyra_sysfs_read_profilex_settings,			\
223 	.private = &profile_numbers[number-1],				\
224 };									\
225 static struct bin_attribute bin_attr_profile##number##_buttons = {	\
226 	.attr = { .name = "profile" #number "_buttons", .mode = 0440 },	\
227 	.size = PYRA_SIZE_PROFILE_BUTTONS,				\
228 	.read = pyra_sysfs_read_profilex_buttons,			\
229 	.private = &profile_numbers[number-1],				\
230 };
231 PROFILE_ATTR(1);
232 PROFILE_ATTR(2);
233 PROFILE_ATTR(3);
234 PROFILE_ATTR(4);
235 PROFILE_ATTR(5);
236 
237 static ssize_t pyra_sysfs_write_settings(struct file *fp,
238 		struct kobject *kobj, struct bin_attribute *attr, char *buf,
239 		loff_t off, size_t count)
240 {
241 	struct device *dev = kobj_to_dev(kobj)->parent->parent;
242 	struct pyra_device *pyra = hid_get_drvdata(dev_get_drvdata(dev));
243 	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
244 	int retval = 0;
245 	struct pyra_roccat_report roccat_report;
246 	struct pyra_settings const *settings;
247 
248 	if (off != 0 || count != PYRA_SIZE_SETTINGS)
249 		return -EINVAL;
250 
251 	settings = (struct pyra_settings const *)buf;
252 	if (settings->startup_profile >= ARRAY_SIZE(pyra->profile_settings))
253 		return -EINVAL;
254 
255 	mutex_lock(&pyra->pyra_lock);
256 
257 	retval = pyra_set_settings(usb_dev, settings);
258 	if (retval) {
259 		mutex_unlock(&pyra->pyra_lock);
260 		return retval;
261 	}
262 
263 	profile_activated(pyra, settings->startup_profile);
264 
265 	roccat_report.type = PYRA_MOUSE_EVENT_BUTTON_TYPE_PROFILE_2;
266 	roccat_report.value = settings->startup_profile + 1;
267 	roccat_report.key = 0;
268 	roccat_report_event(pyra->chrdev_minor,
269 			(uint8_t const *)&roccat_report);
270 
271 	mutex_unlock(&pyra->pyra_lock);
272 	return PYRA_SIZE_SETTINGS;
273 }
274 
275 PYRA_SYSFS_R(settings, SETTINGS);
276 static struct bin_attribute bin_attr_settings =
277 	__BIN_ATTR(settings, (S_IWUSR | S_IRUGO),
278 		   pyra_sysfs_read_settings, pyra_sysfs_write_settings,
279 		   PYRA_SIZE_SETTINGS);
280 
281 static ssize_t pyra_sysfs_show_actual_cpi(struct device *dev,
282 		struct device_attribute *attr, char *buf)
283 {
284 	struct pyra_device *pyra =
285 			hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
286 	return snprintf(buf, PAGE_SIZE, "%d\n", pyra->actual_cpi);
287 }
288 static DEVICE_ATTR(actual_cpi, 0440, pyra_sysfs_show_actual_cpi, NULL);
289 
290 static ssize_t pyra_sysfs_show_actual_profile(struct device *dev,
291 		struct device_attribute *attr, char *buf)
292 {
293 	struct pyra_device *pyra =
294 			hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
295 	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
296 	struct pyra_settings settings;
297 
298 	mutex_lock(&pyra->pyra_lock);
299 	roccat_common2_receive(usb_dev, PYRA_COMMAND_SETTINGS,
300 			&settings, PYRA_SIZE_SETTINGS);
301 	mutex_unlock(&pyra->pyra_lock);
302 
303 	return snprintf(buf, PAGE_SIZE, "%d\n", settings.startup_profile);
304 }
305 static DEVICE_ATTR(actual_profile, 0440, pyra_sysfs_show_actual_profile, NULL);
306 static DEVICE_ATTR(startup_profile, 0440, pyra_sysfs_show_actual_profile, NULL);
307 
308 static ssize_t pyra_sysfs_show_firmware_version(struct device *dev,
309 		struct device_attribute *attr, char *buf)
310 {
311 	struct pyra_device *pyra;
312 	struct usb_device *usb_dev;
313 	struct pyra_info info;
314 
315 	dev = dev->parent->parent;
316 	pyra = hid_get_drvdata(dev_get_drvdata(dev));
317 	usb_dev = interface_to_usbdev(to_usb_interface(dev));
318 
319 	mutex_lock(&pyra->pyra_lock);
320 	roccat_common2_receive(usb_dev, PYRA_COMMAND_INFO,
321 			&info, PYRA_SIZE_INFO);
322 	mutex_unlock(&pyra->pyra_lock);
323 
324 	return snprintf(buf, PAGE_SIZE, "%d\n", info.firmware_version);
325 }
326 static DEVICE_ATTR(firmware_version, 0440, pyra_sysfs_show_firmware_version,
327 		   NULL);
328 
329 static struct attribute *pyra_attrs[] = {
330 	&dev_attr_actual_cpi.attr,
331 	&dev_attr_actual_profile.attr,
332 	&dev_attr_firmware_version.attr,
333 	&dev_attr_startup_profile.attr,
334 	NULL,
335 };
336 
337 static struct bin_attribute *pyra_bin_attributes[] = {
338 	&bin_attr_control,
339 	&bin_attr_info,
340 	&bin_attr_profile_settings,
341 	&bin_attr_profile_buttons,
342 	&bin_attr_settings,
343 	&bin_attr_profile1_settings,
344 	&bin_attr_profile2_settings,
345 	&bin_attr_profile3_settings,
346 	&bin_attr_profile4_settings,
347 	&bin_attr_profile5_settings,
348 	&bin_attr_profile1_buttons,
349 	&bin_attr_profile2_buttons,
350 	&bin_attr_profile3_buttons,
351 	&bin_attr_profile4_buttons,
352 	&bin_attr_profile5_buttons,
353 	NULL,
354 };
355 
356 static const struct attribute_group pyra_group = {
357 	.attrs = pyra_attrs,
358 	.bin_attrs = pyra_bin_attributes,
359 };
360 
361 static const struct attribute_group *pyra_groups[] = {
362 	&pyra_group,
363 	NULL,
364 };
365 
366 /* pyra_class is used for creating sysfs attributes via roccat char device */
367 static const struct class pyra_class = {
368 	.name = "pyra",
369 	.dev_groups = pyra_groups,
370 };
371 
372 static int pyra_init_pyra_device_struct(struct usb_device *usb_dev,
373 		struct pyra_device *pyra)
374 {
375 	struct pyra_settings settings;
376 	int retval, i;
377 
378 	mutex_init(&pyra->pyra_lock);
379 
380 	retval = pyra_get_settings(usb_dev, &settings);
381 	if (retval)
382 		return retval;
383 
384 	for (i = 0; i < 5; ++i) {
385 		retval = pyra_get_profile_settings(usb_dev,
386 				&pyra->profile_settings[i], i);
387 		if (retval)
388 			return retval;
389 	}
390 
391 	profile_activated(pyra, settings.startup_profile);
392 
393 	return 0;
394 }
395 
396 static int pyra_init_specials(struct hid_device *hdev)
397 {
398 	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
399 	struct usb_device *usb_dev = interface_to_usbdev(intf);
400 	struct pyra_device *pyra;
401 	int retval;
402 
403 	if (intf->cur_altsetting->desc.bInterfaceProtocol
404 			== USB_INTERFACE_PROTOCOL_MOUSE) {
405 
406 		pyra = kzalloc(sizeof(*pyra), GFP_KERNEL);
407 		if (!pyra) {
408 			hid_err(hdev, "can't alloc device descriptor\n");
409 			return -ENOMEM;
410 		}
411 		hid_set_drvdata(hdev, pyra);
412 
413 		retval = pyra_init_pyra_device_struct(usb_dev, pyra);
414 		if (retval) {
415 			hid_err(hdev, "couldn't init struct pyra_device\n");
416 			goto exit_free;
417 		}
418 
419 		retval = roccat_connect(&pyra_class, hdev,
420 				sizeof(struct pyra_roccat_report));
421 		if (retval < 0) {
422 			hid_err(hdev, "couldn't init char dev\n");
423 		} else {
424 			pyra->chrdev_minor = retval;
425 			pyra->roccat_claimed = 1;
426 		}
427 	} else {
428 		hid_set_drvdata(hdev, NULL);
429 	}
430 
431 	return 0;
432 exit_free:
433 	kfree(pyra);
434 	return retval;
435 }
436 
437 static void pyra_remove_specials(struct hid_device *hdev)
438 {
439 	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
440 	struct pyra_device *pyra;
441 
442 	if (intf->cur_altsetting->desc.bInterfaceProtocol
443 			== USB_INTERFACE_PROTOCOL_MOUSE) {
444 		pyra = hid_get_drvdata(hdev);
445 		if (pyra->roccat_claimed)
446 			roccat_disconnect(pyra->chrdev_minor);
447 		kfree(hid_get_drvdata(hdev));
448 	}
449 }
450 
451 static int pyra_probe(struct hid_device *hdev, const struct hid_device_id *id)
452 {
453 	int retval;
454 
455 	if (!hid_is_usb(hdev))
456 		return -EINVAL;
457 
458 	retval = hid_parse(hdev);
459 	if (retval) {
460 		hid_err(hdev, "parse failed\n");
461 		goto exit;
462 	}
463 
464 	retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
465 	if (retval) {
466 		hid_err(hdev, "hw start failed\n");
467 		goto exit;
468 	}
469 
470 	retval = pyra_init_specials(hdev);
471 	if (retval) {
472 		hid_err(hdev, "couldn't install mouse\n");
473 		goto exit_stop;
474 	}
475 	return 0;
476 
477 exit_stop:
478 	hid_hw_stop(hdev);
479 exit:
480 	return retval;
481 }
482 
483 static void pyra_remove(struct hid_device *hdev)
484 {
485 	pyra_remove_specials(hdev);
486 	hid_hw_stop(hdev);
487 }
488 
489 static void pyra_keep_values_up_to_date(struct pyra_device *pyra,
490 		u8 const *data)
491 {
492 	struct pyra_mouse_event_button const *button_event;
493 
494 	switch (data[0]) {
495 	case PYRA_MOUSE_REPORT_NUMBER_BUTTON:
496 		button_event = (struct pyra_mouse_event_button const *)data;
497 		switch (button_event->type) {
498 		case PYRA_MOUSE_EVENT_BUTTON_TYPE_PROFILE_2:
499 			profile_activated(pyra, button_event->data1 - 1);
500 			break;
501 		case PYRA_MOUSE_EVENT_BUTTON_TYPE_CPI:
502 			pyra->actual_cpi = button_event->data1;
503 			break;
504 		}
505 		break;
506 	}
507 }
508 
509 static void pyra_report_to_chrdev(struct pyra_device const *pyra,
510 		u8 const *data)
511 {
512 	struct pyra_roccat_report roccat_report;
513 	struct pyra_mouse_event_button const *button_event;
514 
515 	if (data[0] != PYRA_MOUSE_REPORT_NUMBER_BUTTON)
516 		return;
517 
518 	button_event = (struct pyra_mouse_event_button const *)data;
519 
520 	switch (button_event->type) {
521 	case PYRA_MOUSE_EVENT_BUTTON_TYPE_PROFILE_2:
522 	case PYRA_MOUSE_EVENT_BUTTON_TYPE_CPI:
523 		roccat_report.type = button_event->type;
524 		roccat_report.value = button_event->data1;
525 		roccat_report.key = 0;
526 		roccat_report_event(pyra->chrdev_minor,
527 				(uint8_t const *)&roccat_report);
528 		break;
529 	case PYRA_MOUSE_EVENT_BUTTON_TYPE_MACRO:
530 	case PYRA_MOUSE_EVENT_BUTTON_TYPE_SHORTCUT:
531 	case PYRA_MOUSE_EVENT_BUTTON_TYPE_QUICKLAUNCH:
532 		if (button_event->data2 == PYRA_MOUSE_EVENT_BUTTON_PRESS) {
533 			roccat_report.type = button_event->type;
534 			roccat_report.key = button_event->data1;
535 			/*
536 			 * pyra reports profile numbers with range 1-5.
537 			 * Keeping this behaviour.
538 			 */
539 			roccat_report.value = pyra->actual_profile + 1;
540 			roccat_report_event(pyra->chrdev_minor,
541 					(uint8_t const *)&roccat_report);
542 		}
543 		break;
544 	}
545 }
546 
547 static int pyra_raw_event(struct hid_device *hdev, struct hid_report *report,
548 		u8 *data, int size)
549 {
550 	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
551 	struct pyra_device *pyra = hid_get_drvdata(hdev);
552 
553 	if (intf->cur_altsetting->desc.bInterfaceProtocol
554 			!= USB_INTERFACE_PROTOCOL_MOUSE)
555 		return 0;
556 
557 	if (pyra == NULL)
558 		return 0;
559 
560 	pyra_keep_values_up_to_date(pyra, data);
561 
562 	if (pyra->roccat_claimed)
563 		pyra_report_to_chrdev(pyra, data);
564 
565 	return 0;
566 }
567 
568 static const struct hid_device_id pyra_devices[] = {
569 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT,
570 			USB_DEVICE_ID_ROCCAT_PYRA_WIRED) },
571 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT,
572 			USB_DEVICE_ID_ROCCAT_PYRA_WIRELESS) },
573 	{ }
574 };
575 
576 MODULE_DEVICE_TABLE(hid, pyra_devices);
577 
578 static struct hid_driver pyra_driver = {
579 		.name = "pyra",
580 		.id_table = pyra_devices,
581 		.probe = pyra_probe,
582 		.remove = pyra_remove,
583 		.raw_event = pyra_raw_event
584 };
585 
586 static int __init pyra_init(void)
587 {
588 	int retval;
589 
590 	/* class name has to be same as driver name */
591 	retval = class_register(&pyra_class);
592 	if (retval)
593 		return retval;
594 
595 	retval = hid_register_driver(&pyra_driver);
596 	if (retval)
597 		class_unregister(&pyra_class);
598 	return retval;
599 }
600 
601 static void __exit pyra_exit(void)
602 {
603 	hid_unregister_driver(&pyra_driver);
604 	class_unregister(&pyra_class);
605 }
606 
607 module_init(pyra_init);
608 module_exit(pyra_exit);
609 
610 MODULE_AUTHOR("Stefan Achatz");
611 MODULE_DESCRIPTION("USB Roccat Pyra driver");
612 MODULE_LICENSE("GPL v2");
613