Pileus Git - ~andy/linux/blob - drivers/hid/hid-roccat-koneplus.c

   1 /*
   2  * Roccat Kone[+] driver for Linux
   3  *
   4  * Copyright (c) 2010 Stefan Achatz <erazor_de@users.sourceforge.net>
   5  */
   6
   7 /*
   8  * This program is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU General Public License as published by the Free
  10  * Software Foundation; either version 2 of the License, or (at your option)
  11  * any later version.
  12  */
  13
  14 /*
  15  * Roccat Kone[+] is an updated/improved version of the Kone with more memory
  16  * and functionality and without the non-standard behaviours the Kone had.
  17  * KoneXTD has same capabilities but updated sensor.
  18  */
  19
  20 #include <linux/device.h>
  21 #include <linux/input.h>
  22 #include <linux/hid.h>
  23 #include <linux/module.h>
  24 #include <linux/slab.h>
  25 #include <linux/hid-roccat.h>
  26 #include "hid-ids.h"
  27 #include "hid-roccat-common.h"
  28 #include "hid-roccat-koneplus.h"
  29
  30 static uint profile_numbers[5] = {0, 1, 2, 3, 4};
  31
  32 static struct class *koneplus_class;
  33
  34 static void koneplus_profile_activated(struct koneplus_device *koneplus,
  35                 uint new_profile)
  36 {
  37         koneplus->actual_profile = new_profile;
  38 }
  39
  40 static int koneplus_send_control(struct usb_device *usb_dev, uint value,
  41                 enum koneplus_control_requests request)
  42 {
  43         struct roccat_common2_control control;
  44
  45         if ((request == KONEPLUS_CONTROL_REQUEST_PROFILE_SETTINGS ||
  46                         request == KONEPLUS_CONTROL_REQUEST_PROFILE_BUTTONS) &&
  47                         value > 4)
  48                 return -EINVAL;
  49
  50         control.command = ROCCAT_COMMON_COMMAND_CONTROL;
  51         control.value = value;
  52         control.request = request;
  53
  54         return roccat_common2_send_with_status(usb_dev,
  55                         ROCCAT_COMMON_COMMAND_CONTROL,
  56                         &control, sizeof(struct roccat_common2_control));
  57 }
  58
  59
  60 /* retval is 0-4 on success, < 0 on error */
  61 static int koneplus_get_actual_profile(struct usb_device *usb_dev)
  62 {
  63         struct koneplus_actual_profile buf;
  64         int retval;
  65
  66         retval = roccat_common2_receive(usb_dev, KONEPLUS_COMMAND_ACTUAL_PROFILE,
  67                         &buf, KONEPLUS_SIZE_ACTUAL_PROFILE);
  68
  69         return retval ? retval : buf.actual_profile;
  70 }
  71
  72 static int koneplus_set_actual_profile(struct usb_device *usb_dev,
  73                 int new_profile)
  74 {
  75         struct koneplus_actual_profile buf;
  76
  77         buf.command = KONEPLUS_COMMAND_ACTUAL_PROFILE;
  78         buf.size = KONEPLUS_SIZE_ACTUAL_PROFILE;
  79         buf.actual_profile = new_profile;
  80
  81         return roccat_common2_send_with_status(usb_dev,
  82                         KONEPLUS_COMMAND_ACTUAL_PROFILE,
  83                         &buf, KONEPLUS_SIZE_ACTUAL_PROFILE);
  84 }
  85
  86 static ssize_t koneplus_sysfs_read(struct file *fp, struct kobject *kobj,
  87                 char *buf, loff_t off, size_t count,
  88                 size_t real_size, uint command)
  89 {
  90         struct device *dev =
  91                         container_of(kobj, struct device, kobj)->parent->parent;
  92         struct koneplus_device *koneplus = hid_get_drvdata(dev_get_drvdata(dev));
  93         struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
  94         int retval;
  95
  96         if (off >= real_size)
  97                 return 0;
  98
  99         if (off != 0 || count != real_size)
 100                 return -EINVAL;
 101
 102         mutex_lock(&koneplus->koneplus_lock);
 103         retval = roccat_common2_receive(usb_dev, command, buf, real_size);
 104         mutex_unlock(&koneplus->koneplus_lock);
 105
 106         if (retval)
 107                 return retval;
 108
 109         return real_size;
 110 }
 111
 112 static ssize_t koneplus_sysfs_write(struct file *fp, struct kobject *kobj,
 113                 void const *buf, loff_t off, size_t count,
 114                 size_t real_size, uint command)
 115 {
 116         struct device *dev =
 117                         container_of(kobj, struct device, kobj)->parent->parent;
 118         struct koneplus_device *koneplus = hid_get_drvdata(dev_get_drvdata(dev));
 119         struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
 120         int retval;
 121
 122         if (off != 0 || count != real_size)
 123                 return -EINVAL;
 124
 125         mutex_lock(&koneplus->koneplus_lock);
 126         retval = roccat_common2_send_with_status(usb_dev, command,
 127                         buf, real_size);
 128         mutex_unlock(&koneplus->koneplus_lock);
 129
 130         if (retval)
 131                 return retval;
 132
 133         return real_size;
 134 }
 135
 136 #define KONEPLUS_SYSFS_W(thingy, THINGY) \
 137 static ssize_t koneplus_sysfs_write_ ## thingy(struct file *fp, \
 138                 struct kobject *kobj, struct bin_attribute *attr, char *buf, \
 139                 loff_t off, size_t count) \
 140 { \
 141         return koneplus_sysfs_write(fp, kobj, buf, off, count, \
 142                         KONEPLUS_SIZE_ ## THINGY, KONEPLUS_COMMAND_ ## THINGY); \
 143 }
 144
 145 #define KONEPLUS_SYSFS_R(thingy, THINGY) \
 146 static ssize_t koneplus_sysfs_read_ ## thingy(struct file *fp, \
 147                 struct kobject *kobj, struct bin_attribute *attr, char *buf, \
 148                 loff_t off, size_t count) \
 149 { \
 150         return koneplus_sysfs_read(fp, kobj, buf, off, count, \
 151                         KONEPLUS_SIZE_ ## THINGY, KONEPLUS_COMMAND_ ## THINGY); \
 152 }
 153
 154 #define KONEPLUS_SYSFS_RW(thingy, THINGY) \
 155 KONEPLUS_SYSFS_W(thingy, THINGY) \
 156 KONEPLUS_SYSFS_R(thingy, THINGY)
 157
 158 #define KONEPLUS_BIN_ATTRIBUTE_RW(thingy, THINGY) \
 159 { \
 160         .attr = { .name = #thingy, .mode = 0660 }, \
 161         .size = KONEPLUS_SIZE_ ## THINGY, \
 162         .read = koneplus_sysfs_read_ ## thingy, \
 163         .write = koneplus_sysfs_write_ ## thingy \
 164 }
 165
 166 #define KONEPLUS_BIN_ATTRIBUTE_R(thingy, THINGY) \
 167 { \
 168         .attr = { .name = #thingy, .mode = 0440 }, \
 169         .size = KONEPLUS_SIZE_ ## THINGY, \
 170         .read = koneplus_sysfs_read_ ## thingy, \
 171 }
 172
 173 #define KONEPLUS_BIN_ATTRIBUTE_W(thingy, THINGY) \
 174 { \
 175         .attr = { .name = #thingy, .mode = 0220 }, \
 176         .size = KONEPLUS_SIZE_ ## THINGY, \
 177         .write = koneplus_sysfs_write_ ## thingy \
 178 }
 179
 180 KONEPLUS_SYSFS_W(control, CONTROL)
 181 KONEPLUS_SYSFS_RW(info, INFO)
 182 KONEPLUS_SYSFS_W(talk, TALK)
 183 KONEPLUS_SYSFS_W(macro, MACRO)
 184 KONEPLUS_SYSFS_RW(sensor, SENSOR)
 185 KONEPLUS_SYSFS_RW(tcu, TCU)
 186 KONEPLUS_SYSFS_R(tcu_image, TCU_IMAGE)
 187 KONEPLUS_SYSFS_RW(profile_settings, PROFILE_SETTINGS)
 188 KONEPLUS_SYSFS_RW(profile_buttons, PROFILE_BUTTONS)
 189
 190 static ssize_t koneplus_sysfs_read_profilex_settings(struct file *fp,
 191                 struct kobject *kobj, struct bin_attribute *attr, char *buf,
 192                 loff_t off, size_t count)
 193 {
 194         struct device *dev =
 195                         container_of(kobj, struct device, kobj)->parent->parent;
 196         struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
 197         ssize_t retval;
 198
 199         retval = koneplus_send_control(usb_dev, *(uint *)(attr->private),
 200                         KONEPLUS_CONTROL_REQUEST_PROFILE_SETTINGS);
 201         if (retval)
 202                 return retval;
 203
 204         return koneplus_sysfs_read(fp, kobj, buf, off, count,
 205                         KONEPLUS_SIZE_PROFILE_SETTINGS,
 206                         KONEPLUS_COMMAND_PROFILE_SETTINGS);
 207 }
 208
 209 static ssize_t koneplus_sysfs_read_profilex_buttons(struct file *fp,
 210                 struct kobject *kobj, struct bin_attribute *attr, char *buf,
 211                 loff_t off, size_t count)
 212 {
 213         struct device *dev =
 214                         container_of(kobj, struct device, kobj)->parent->parent;
 215         struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
 216         ssize_t retval;
 217
 218         retval = koneplus_send_control(usb_dev, *(uint *)(attr->private),
 219                         KONEPLUS_CONTROL_REQUEST_PROFILE_BUTTONS);
 220         if (retval)
 221                 return retval;
 222
 223         return koneplus_sysfs_read(fp, kobj, buf, off, count,
 224                         KONEPLUS_SIZE_PROFILE_BUTTONS,
 225                         KONEPLUS_COMMAND_PROFILE_BUTTONS);
 226 }
 227
 228 static ssize_t koneplus_sysfs_show_actual_profile(struct device *dev,
 229                 struct device_attribute *attr, char *buf)
 230 {
 231         struct koneplus_device *koneplus =
 232                         hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
 233         return snprintf(buf, PAGE_SIZE, "%d\n", koneplus->actual_profile);
 234 }
 235
 236 static ssize_t koneplus_sysfs_set_actual_profile(struct device *dev,
 237                 struct device_attribute *attr, char const *buf, size_t size)
 238 {
 239         struct koneplus_device *koneplus;
 240         struct usb_device *usb_dev;
 241         unsigned long profile;
 242         int retval;
 243         struct koneplus_roccat_report roccat_report;
 244
 245         dev = dev->parent->parent;
 246         koneplus = hid_get_drvdata(dev_get_drvdata(dev));
 247         usb_dev = interface_to_usbdev(to_usb_interface(dev));
 248
 249         retval = strict_strtoul(buf, 10, &profile);
 250         if (retval)
 251                 return retval;
 252
 253         if (profile > 4)
 254                 return -EINVAL;
 255
 256         mutex_lock(&koneplus->koneplus_lock);
 257
 258         retval = koneplus_set_actual_profile(usb_dev, profile);
 259         if (retval) {
 260                 mutex_unlock(&koneplus->koneplus_lock);
 261                 return retval;
 262         }
 263
 264         koneplus_profile_activated(koneplus, profile);
 265
 266         roccat_report.type = KONEPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE;
 267         roccat_report.data1 = profile + 1;
 268         roccat_report.data2 = 0;
 269         roccat_report.profile = profile + 1;
 270         roccat_report_event(koneplus->chrdev_minor,
 271                         (uint8_t const *)&roccat_report);
 272
 273         mutex_unlock(&koneplus->koneplus_lock);
 274
 275         return size;
 276 }
 277 static DEVICE_ATTR(actual_profile, 0660,
 278                    koneplus_sysfs_show_actual_profile,
 279                    koneplus_sysfs_set_actual_profile);
 280 static DEVICE_ATTR(startup_profile, 0660,
 281                    koneplus_sysfs_show_actual_profile,
 282                    koneplus_sysfs_set_actual_profile);
 283
 284 static ssize_t koneplus_sysfs_show_firmware_version(struct device *dev,
 285                 struct device_attribute *attr, char *buf)
 286 {
 287         struct koneplus_device *koneplus;
 288         struct usb_device *usb_dev;
 289         struct koneplus_info info;
 290
 291         dev = dev->parent->parent;
 292         koneplus = hid_get_drvdata(dev_get_drvdata(dev));
 293         usb_dev = interface_to_usbdev(to_usb_interface(dev));
 294
 295         mutex_lock(&koneplus->koneplus_lock);
 296         roccat_common2_receive(usb_dev, KONEPLUS_COMMAND_INFO,
 297                         &info, KONEPLUS_SIZE_INFO);
 298         mutex_unlock(&koneplus->koneplus_lock);
 299
 300         return snprintf(buf, PAGE_SIZE, "%d\n", info.firmware_version);
 301 }
 302 static DEVICE_ATTR(firmware_version, 0440,
 303                    koneplus_sysfs_show_firmware_version, NULL);
 304
 305 static struct attribute *koneplus_attrs[] = {
 306         &dev_attr_actual_profile.attr,
 307         &dev_attr_startup_profile.attr,
 308         &dev_attr_firmware_version.attr,
 309         NULL,
 310 };
 311 ATTRIBUTE_GROUPS(koneplus);
 312
 313 static struct bin_attribute koneplus_bin_attributes[] = {
 314         KONEPLUS_BIN_ATTRIBUTE_W(control, CONTROL),
 315         KONEPLUS_BIN_ATTRIBUTE_RW(info, INFO),
 316         KONEPLUS_BIN_ATTRIBUTE_W(talk, TALK),
 317         KONEPLUS_BIN_ATTRIBUTE_W(macro, MACRO),
 318         KONEPLUS_BIN_ATTRIBUTE_RW(sensor, SENSOR),
 319         KONEPLUS_BIN_ATTRIBUTE_RW(tcu, TCU),
 320         KONEPLUS_BIN_ATTRIBUTE_R(tcu_image, TCU_IMAGE),
 321         KONEPLUS_BIN_ATTRIBUTE_RW(profile_settings, PROFILE_SETTINGS),
 322         KONEPLUS_BIN_ATTRIBUTE_RW(profile_buttons, PROFILE_BUTTONS),
 323         {
 324                 .attr = { .name = "profile1_settings", .mode = 0440 },
 325                 .size = KONEPLUS_SIZE_PROFILE_SETTINGS,
 326                 .read = koneplus_sysfs_read_profilex_settings,
 327                 .private = &profile_numbers[0]
 328         },
 329         {
 330                 .attr = { .name = "profile2_settings", .mode = 0440 },
 331                 .size = KONEPLUS_SIZE_PROFILE_SETTINGS,
 332                 .read = koneplus_sysfs_read_profilex_settings,
 333                 .private = &profile_numbers[1]
 334         },
 335         {
 336                 .attr = { .name = "profile3_settings", .mode = 0440 },
 337                 .size = KONEPLUS_SIZE_PROFILE_SETTINGS,
 338                 .read = koneplus_sysfs_read_profilex_settings,
 339                 .private = &profile_numbers[2]
 340         },
 341         {
 342                 .attr = { .name = "profile4_settings", .mode = 0440 },
 343                 .size = KONEPLUS_SIZE_PROFILE_SETTINGS,
 344                 .read = koneplus_sysfs_read_profilex_settings,
 345                 .private = &profile_numbers[3]
 346         },
 347         {
 348                 .attr = { .name = "profile5_settings", .mode = 0440 },
 349                 .size = KONEPLUS_SIZE_PROFILE_SETTINGS,
 350                 .read = koneplus_sysfs_read_profilex_settings,
 351                 .private = &profile_numbers[4]
 352         },
 353         {
 354                 .attr = { .name = "profile1_buttons", .mode = 0440 },
 355                 .size = KONEPLUS_SIZE_PROFILE_BUTTONS,
 356                 .read = koneplus_sysfs_read_profilex_buttons,
 357                 .private = &profile_numbers[0]
 358         },
 359         {
 360                 .attr = { .name = "profile2_buttons", .mode = 0440 },
 361                 .size = KONEPLUS_SIZE_PROFILE_BUTTONS,
 362                 .read = koneplus_sysfs_read_profilex_buttons,
 363                 .private = &profile_numbers[1]
 364         },
 365         {
 366                 .attr = { .name = "profile3_buttons", .mode = 0440 },
 367                 .size = KONEPLUS_SIZE_PROFILE_BUTTONS,
 368                 .read = koneplus_sysfs_read_profilex_buttons,
 369                 .private = &profile_numbers[2]
 370         },
 371         {
 372                 .attr = { .name = "profile4_buttons", .mode = 0440 },
 373                 .size = KONEPLUS_SIZE_PROFILE_BUTTONS,
 374                 .read = koneplus_sysfs_read_profilex_buttons,
 375                 .private = &profile_numbers[3]
 376         },
 377         {
 378                 .attr = { .name = "profile5_buttons", .mode = 0440 },
 379                 .size = KONEPLUS_SIZE_PROFILE_BUTTONS,
 380                 .read = koneplus_sysfs_read_profilex_buttons,
 381                 .private = &profile_numbers[4]
 382         },
 383         __ATTR_NULL
 384 };
 385
 386 static int koneplus_init_koneplus_device_struct(struct usb_device *usb_dev,
 387                 struct koneplus_device *koneplus)
 388 {
 389         int retval;
 390
 391         mutex_init(&koneplus->koneplus_lock);
 392
 393         retval = koneplus_get_actual_profile(usb_dev);
 394         if (retval < 0)
 395                 return retval;
 396         koneplus_profile_activated(koneplus, retval);
 397
 398         return 0;
 399 }
 400
 401 static int koneplus_init_specials(struct hid_device *hdev)
 402 {
 403         struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
 404         struct usb_device *usb_dev = interface_to_usbdev(intf);
 405         struct koneplus_device *koneplus;
 406         int retval;
 407
 408         if (intf->cur_altsetting->desc.bInterfaceProtocol
 409                         == USB_INTERFACE_PROTOCOL_MOUSE) {
 410
 411                 koneplus = kzalloc(sizeof(*koneplus), GFP_KERNEL);
 412                 if (!koneplus) {
 413                         hid_err(hdev, "can't alloc device descriptor\n");
 414                         return -ENOMEM;
 415                 }
 416                 hid_set_drvdata(hdev, koneplus);
 417
 418                 retval = koneplus_init_koneplus_device_struct(usb_dev, koneplus);
 419                 if (retval) {
 420                         hid_err(hdev, "couldn't init struct koneplus_device\n");
 421                         goto exit_free;
 422                 }
 423
 424                 retval = roccat_connect(koneplus_class, hdev,
 425                                 sizeof(struct koneplus_roccat_report));
 426                 if (retval < 0) {
 427                         hid_err(hdev, "couldn't init char dev\n");
 428                 } else {
 429                         koneplus->chrdev_minor = retval;
 430                         koneplus->roccat_claimed = 1;
 431                 }
 432         } else {
 433                 hid_set_drvdata(hdev, NULL);
 434         }
 435
 436         return 0;
 437 exit_free:
 438         kfree(koneplus);
 439         return retval;
 440 }
 441
 442 static void koneplus_remove_specials(struct hid_device *hdev)
 443 {
 444         struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
 445         struct koneplus_device *koneplus;
 446
 447         if (intf->cur_altsetting->desc.bInterfaceProtocol
 448                         == USB_INTERFACE_PROTOCOL_MOUSE) {
 449                 koneplus = hid_get_drvdata(hdev);
 450                 if (koneplus->roccat_claimed)
 451                         roccat_disconnect(koneplus->chrdev_minor);
 452                 kfree(koneplus);
 453         }
 454 }
 455
 456 static int koneplus_probe(struct hid_device *hdev,
 457                 const struct hid_device_id *id)
 458 {
 459         int retval;
 460
 461         retval = hid_parse(hdev);
 462         if (retval) {
 463                 hid_err(hdev, "parse failed\n");
 464                 goto exit;
 465         }
 466
 467         retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
 468         if (retval) {
 469                 hid_err(hdev, "hw start failed\n");
 470                 goto exit;
 471         }
 472
 473         retval = koneplus_init_specials(hdev);
 474         if (retval) {
 475                 hid_err(hdev, "couldn't install mouse\n");
 476                 goto exit_stop;
 477         }
 478
 479         return 0;
 480
 481 exit_stop:
 482         hid_hw_stop(hdev);
 483 exit:
 484         return retval;
 485 }
 486
 487 static void koneplus_remove(struct hid_device *hdev)
 488 {
 489         koneplus_remove_specials(hdev);
 490         hid_hw_stop(hdev);
 491 }
 492
 493 static void koneplus_keep_values_up_to_date(struct koneplus_device *koneplus,
 494                 u8 const *data)
 495 {
 496         struct koneplus_mouse_report_button const *button_report;
 497
 498         switch (data[0]) {
 499         case KONEPLUS_MOUSE_REPORT_NUMBER_BUTTON:
 500                 button_report = (struct koneplus_mouse_report_button const *)data;
 501                 switch (button_report->type) {
 502                 case KONEPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE:
 503                         koneplus_profile_activated(koneplus, button_report->data1 - 1);
 504                         break;
 505                 }
 506                 break;
 507         }
 508 }
 509
 510 static void koneplus_report_to_chrdev(struct koneplus_device const *koneplus,
 511                 u8 const *data)
 512 {
 513         struct koneplus_roccat_report roccat_report;
 514         struct koneplus_mouse_report_button const *button_report;
 515
 516         if (data[0] != KONEPLUS_MOUSE_REPORT_NUMBER_BUTTON)
 517                 return;
 518
 519         button_report = (struct koneplus_mouse_report_button const *)data;
 520
 521         if ((button_report->type == KONEPLUS_MOUSE_REPORT_BUTTON_TYPE_QUICKLAUNCH ||
 522                         button_report->type == KONEPLUS_MOUSE_REPORT_BUTTON_TYPE_TIMER) &&
 523                         button_report->data2 != KONEPLUS_MOUSE_REPORT_BUTTON_ACTION_PRESS)
 524                 return;
 525
 526         roccat_report.type = button_report->type;
 527         roccat_report.data1 = button_report->data1;
 528         roccat_report.data2 = button_report->data2;
 529         roccat_report.profile = koneplus->actual_profile + 1;
 530         roccat_report_event(koneplus->chrdev_minor,
 531                         (uint8_t const *)&roccat_report);
 532 }
 533
 534 static int koneplus_raw_event(struct hid_device *hdev,
 535                 struct hid_report *report, u8 *data, int size)
 536 {
 537         struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
 538         struct koneplus_device *koneplus = hid_get_drvdata(hdev);
 539
 540         if (intf->cur_altsetting->desc.bInterfaceProtocol
 541                         != USB_INTERFACE_PROTOCOL_MOUSE)
 542                 return 0;
 543
 544         if (koneplus == NULL)
 545                 return 0;
 546
 547         koneplus_keep_values_up_to_date(koneplus, data);
 548
 549         if (koneplus->roccat_claimed)
 550                 koneplus_report_to_chrdev(koneplus, data);
 551
 552         return 0;
 553 }
 554
 555 static const struct hid_device_id koneplus_devices[] = {
 556         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPLUS) },
 557         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEXTD) },
 558         { }
 559 };
 560
 561 MODULE_DEVICE_TABLE(hid, koneplus_devices);
 562
 563 static struct hid_driver koneplus_driver = {
 564                 .name = "koneplus",
 565                 .id_table = koneplus_devices,
 566                 .probe = koneplus_probe,
 567                 .remove = koneplus_remove,
 568                 .raw_event = koneplus_raw_event
 569 };
 570
 571 static int __init koneplus_init(void)
 572 {
 573         int retval;
 574
 575         /* class name has to be same as driver name */
 576         koneplus_class = class_create(THIS_MODULE, "koneplus");
 577         if (IS_ERR(koneplus_class))
 578                 return PTR_ERR(koneplus_class);
 579         koneplus_class->dev_groups = koneplus_groups;
 580         koneplus_class->dev_bin_attrs = koneplus_bin_attributes;
 581
 582         retval = hid_register_driver(&koneplus_driver);
 583         if (retval)
 584                 class_destroy(koneplus_class);
 585         return retval;
 586 }
 587
 588 static void __exit koneplus_exit(void)
 589 {
 590         hid_unregister_driver(&koneplus_driver);
 591         class_destroy(koneplus_class);
 592 }
 593
 594 module_init(koneplus_init);
 595 module_exit(koneplus_exit);
 596
 597 MODULE_AUTHOR("Stefan Achatz");
 598 MODULE_DESCRIPTION("USB Roccat Kone[+]/XTD driver");
 599 MODULE_LICENSE("GPL v2");