linux/drivers/hwmon/corsair-psu.c
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   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3 * corsair-psu.c - Linux driver for Corsair power supplies with HID sensors interface
   4 * Copyright (C) 2020 Wilken Gottwalt <wilken.gottwalt@posteo.net>
   5 */
   6
   7#include <linux/completion.h>
   8#include <linux/debugfs.h>
   9#include <linux/errno.h>
  10#include <linux/hid.h>
  11#include <linux/hwmon.h>
  12#include <linux/hwmon-sysfs.h>
  13#include <linux/jiffies.h>
  14#include <linux/kernel.h>
  15#include <linux/module.h>
  16#include <linux/mutex.h>
  17#include <linux/slab.h>
  18#include <linux/types.h>
  19
  20/*
  21 * Corsair protocol for PSUs
  22 *
  23 * message size = 64 bytes (request and response, little endian)
  24 * request:
  25 *      [length][command][param0][param1][paramX]...
  26 * reply:
  27 *      [echo of length][echo of command][data0][data1][dataX]...
  28 *
  29 *      - commands are byte sized opcodes
  30 *      - length is the sum of all bytes of the commands/params
  31 *      - the micro-controller of most of these PSUs support concatenation in the request and reply,
  32 *        but it is better to not rely on this (it is also hard to parse)
  33 *      - the driver uses raw events to be accessible from userspace (though this is not really
  34 *        supported, it is just there for convenience, may be removed in the future)
  35 *      - a reply always start with the length and command in the same order the request used it
  36 *      - length of the reply data is specific to the command used
  37 *      - some of the commands work on a rail and can be switched to a specific rail (0 = 12v,
  38 *        1 = 5v, 2 = 3.3v)
  39 *      - the format of the init command 0xFE is swapped length/command bytes
  40 *      - parameter bytes amount and values are specific to the command (rail setting is the only
  41 *        for now that uses non-zero values)
  42 *      - there are much more commands, especially for configuring the device, but they are not
  43 *        supported because a wrong command/length can lockup the micro-controller
  44 *      - the driver supports debugfs for values not fitting into the hwmon class
  45 *      - not every device class (HXi, RMi or AXi) supports all commands
  46 *      - it is a pure sensors reading driver (will not support configuring)
  47 */
  48
  49#define DRIVER_NAME             "corsair-psu"
  50
  51#define REPLY_SIZE              16 /* max length of a reply to a single command */
  52#define CMD_BUFFER_SIZE         64
  53#define CMD_TIMEOUT_MS          250
  54#define SECONDS_PER_HOUR        (60 * 60)
  55#define SECONDS_PER_DAY         (SECONDS_PER_HOUR * 24)
  56
  57#define PSU_CMD_SELECT_RAIL     0x00 /* expects length 2 */
  58#define PSU_CMD_IN_VOLTS        0x88 /* the rest of the commands expect length 3 */
  59#define PSU_CMD_IN_AMPS         0x89
  60#define PSU_CMD_RAIL_OUT_VOLTS  0x8B
  61#define PSU_CMD_RAIL_AMPS       0x8C
  62#define PSU_CMD_TEMP0           0x8D
  63#define PSU_CMD_TEMP1           0x8E
  64#define PSU_CMD_FAN             0x90
  65#define PSU_CMD_RAIL_WATTS      0x96
  66#define PSU_CMD_VEND_STR        0x99
  67#define PSU_CMD_PROD_STR        0x9A
  68#define PSU_CMD_TOTAL_WATTS     0xEE
  69#define PSU_CMD_TOTAL_UPTIME    0xD1
  70#define PSU_CMD_UPTIME          0xD2
  71#define PSU_CMD_INIT            0xFE
  72
  73#define L_IN_VOLTS              "v_in"
  74#define L_OUT_VOLTS_12V         "v_out +12v"
  75#define L_OUT_VOLTS_5V          "v_out +5v"
  76#define L_OUT_VOLTS_3_3V        "v_out +3.3v"
  77#define L_IN_AMPS               "curr in"
  78#define L_AMPS_12V              "curr +12v"
  79#define L_AMPS_5V               "curr +5v"
  80#define L_AMPS_3_3V             "curr +3.3v"
  81#define L_FAN                   "psu fan"
  82#define L_TEMP0                 "vrm temp"
  83#define L_TEMP1                 "case temp"
  84#define L_WATTS                 "power total"
  85#define L_WATTS_12V             "power +12v"
  86#define L_WATTS_5V              "power +5v"
  87#define L_WATTS_3_3V            "power +3.3v"
  88
  89static const char *const label_watts[] = {
  90        L_WATTS,
  91        L_WATTS_12V,
  92        L_WATTS_5V,
  93        L_WATTS_3_3V
  94};
  95
  96static const char *const label_volts[] = {
  97        L_IN_VOLTS,
  98        L_OUT_VOLTS_12V,
  99        L_OUT_VOLTS_5V,
 100        L_OUT_VOLTS_3_3V
 101};
 102
 103static const char *const label_amps[] = {
 104        L_IN_AMPS,
 105        L_AMPS_12V,
 106        L_AMPS_5V,
 107        L_AMPS_3_3V
 108};
 109
 110struct corsairpsu_data {
 111        struct hid_device *hdev;
 112        struct device *hwmon_dev;
 113        struct dentry *debugfs;
 114        struct completion wait_completion;
 115        struct mutex lock; /* for locking access to cmd_buffer */
 116        u8 *cmd_buffer;
 117        char vendor[REPLY_SIZE];
 118        char product[REPLY_SIZE];
 119};
 120
 121/* some values are SMBus LINEAR11 data which need a conversion */
 122static int corsairpsu_linear11_to_int(const int val)
 123{
 124        int exp = (val & 0xFFFF) >> 0x0B;
 125        int mant = val & 0x7FF;
 126        int i;
 127
 128        if (exp > 0x0F)
 129                exp -= 0x20;
 130        if (mant > 0x3FF)
 131                mant -= 0x800;
 132        if ((mant & 0x01) == 1)
 133                ++mant;
 134        if (exp < 0) {
 135                for (i = 0; i < -exp; ++i)
 136                        mant /= 2;
 137        } else {
 138                for (i = 0; i < exp; ++i)
 139                        mant *= 2;
 140        }
 141
 142        return mant;
 143}
 144
 145static int corsairpsu_usb_cmd(struct corsairpsu_data *priv, u8 p0, u8 p1, u8 p2, void *data)
 146{
 147        unsigned long time;
 148        int ret;
 149
 150        memset(priv->cmd_buffer, 0, CMD_BUFFER_SIZE);
 151        priv->cmd_buffer[0] = p0;
 152        priv->cmd_buffer[1] = p1;
 153        priv->cmd_buffer[2] = p2;
 154
 155        reinit_completion(&priv->wait_completion);
 156
 157        ret = hid_hw_output_report(priv->hdev, priv->cmd_buffer, CMD_BUFFER_SIZE);
 158        if (ret < 0)
 159                return ret;
 160
 161        time = wait_for_completion_timeout(&priv->wait_completion,
 162                                           msecs_to_jiffies(CMD_TIMEOUT_MS));
 163        if (!time)
 164                return -ETIMEDOUT;
 165
 166        /*
 167         * at the start of the reply is an echo of the send command/length in the same order it
 168         * was send, not every command is supported on every device class, if a command is not
 169         * supported, the length value in the reply is okay, but the command value is set to 0
 170         */
 171        if (p0 != priv->cmd_buffer[0] || p1 != priv->cmd_buffer[1])
 172                return -EOPNOTSUPP;
 173
 174        if (data)
 175                memcpy(data, priv->cmd_buffer + 2, REPLY_SIZE);
 176
 177        return 0;
 178}
 179
 180static int corsairpsu_init(struct corsairpsu_data *priv)
 181{
 182        /*
 183         * PSU_CMD_INIT uses swapped length/command and expects 2 parameter bytes, this command
 184         * actually generates a reply, but we don't need it
 185         */
 186        return corsairpsu_usb_cmd(priv, PSU_CMD_INIT, 3, 0, NULL);
 187}
 188
 189static int corsairpsu_fwinfo(struct corsairpsu_data *priv)
 190{
 191        int ret;
 192
 193        ret = corsairpsu_usb_cmd(priv, 3, PSU_CMD_VEND_STR, 0, priv->vendor);
 194        if (ret < 0)
 195                return ret;
 196
 197        ret = corsairpsu_usb_cmd(priv, 3, PSU_CMD_PROD_STR, 0, priv->product);
 198        if (ret < 0)
 199                return ret;
 200
 201        return 0;
 202}
 203
 204static int corsairpsu_request(struct corsairpsu_data *priv, u8 cmd, u8 rail, void *data)
 205{
 206        int ret;
 207
 208        mutex_lock(&priv->lock);
 209        switch (cmd) {
 210        case PSU_CMD_RAIL_OUT_VOLTS:
 211        case PSU_CMD_RAIL_AMPS:
 212        case PSU_CMD_RAIL_WATTS:
 213                ret = corsairpsu_usb_cmd(priv, 2, PSU_CMD_SELECT_RAIL, rail, NULL);
 214                if (ret < 0)
 215                        goto cmd_fail;
 216                break;
 217        default:
 218                break;
 219        }
 220
 221        ret = corsairpsu_usb_cmd(priv, 3, cmd, 0, data);
 222
 223cmd_fail:
 224        mutex_unlock(&priv->lock);
 225        return ret;
 226}
 227
 228static int corsairpsu_get_value(struct corsairpsu_data *priv, u8 cmd, u8 rail, long *val)
 229{
 230        u8 data[REPLY_SIZE];
 231        long tmp;
 232        int ret;
 233
 234        ret = corsairpsu_request(priv, cmd, rail, data);
 235        if (ret < 0)
 236                return ret;
 237
 238        /*
 239         * the biggest value here comes from the uptime command and to exceed MAXINT total uptime
 240         * needs to be about 68 years, the rest are u16 values and the biggest value coming out of
 241         * the LINEAR11 conversion are the watts values which are about 1200 for the strongest psu
 242         * supported (HX1200i)
 243         */
 244        tmp = ((long)data[3] << 24) + (data[2] << 16) + (data[1] << 8) + data[0];
 245        switch (cmd) {
 246        case PSU_CMD_IN_VOLTS:
 247        case PSU_CMD_IN_AMPS:
 248        case PSU_CMD_RAIL_OUT_VOLTS:
 249        case PSU_CMD_RAIL_AMPS:
 250        case PSU_CMD_TEMP0:
 251        case PSU_CMD_TEMP1:
 252                *val = corsairpsu_linear11_to_int(tmp & 0xFFFF) * 1000;
 253                break;
 254        case PSU_CMD_FAN:
 255                *val = corsairpsu_linear11_to_int(tmp & 0xFFFF);
 256                break;
 257        case PSU_CMD_RAIL_WATTS:
 258        case PSU_CMD_TOTAL_WATTS:
 259                *val = corsairpsu_linear11_to_int(tmp & 0xFFFF) * 1000000;
 260                break;
 261        case PSU_CMD_TOTAL_UPTIME:
 262        case PSU_CMD_UPTIME:
 263                *val = tmp;
 264                break;
 265        default:
 266                ret = -EOPNOTSUPP;
 267                break;
 268        }
 269
 270        return ret;
 271}
 272
 273static umode_t corsairpsu_hwmon_ops_is_visible(const void *data, enum hwmon_sensor_types type,
 274                                               u32 attr, int channel)
 275{
 276        if (type == hwmon_temp && (attr == hwmon_temp_input || attr == hwmon_temp_label))
 277                return 0444;
 278        else if (type == hwmon_fan && (attr == hwmon_fan_input || attr == hwmon_fan_label))
 279                return 0444;
 280        else if (type == hwmon_power && (attr == hwmon_power_input || attr == hwmon_power_label))
 281                return 0444;
 282        else if (type == hwmon_in && (attr == hwmon_in_input || attr == hwmon_in_label))
 283                return 0444;
 284        else if (type == hwmon_curr && (attr == hwmon_curr_input || attr == hwmon_curr_label))
 285                return 0444;
 286
 287        return 0;
 288}
 289
 290static int corsairpsu_hwmon_ops_read(struct device *dev, enum hwmon_sensor_types type, u32 attr,
 291                                     int channel, long *val)
 292{
 293        struct corsairpsu_data *priv = dev_get_drvdata(dev);
 294        int ret;
 295
 296        if (type == hwmon_temp && attr == hwmon_temp_input && channel < 2) {
 297                ret = corsairpsu_get_value(priv, channel ? PSU_CMD_TEMP1 : PSU_CMD_TEMP0, channel,
 298                                           val);
 299        } else if (type == hwmon_fan && attr == hwmon_fan_input) {
 300                ret = corsairpsu_get_value(priv, PSU_CMD_FAN, 0, val);
 301        } else if (type == hwmon_power && attr == hwmon_power_input) {
 302                switch (channel) {
 303                case 0:
 304                        ret = corsairpsu_get_value(priv, PSU_CMD_TOTAL_WATTS, 0, val);
 305                        break;
 306                case 1 ... 3:
 307                        ret = corsairpsu_get_value(priv, PSU_CMD_RAIL_WATTS, channel - 1, val);
 308                        break;
 309                default:
 310                        return -EOPNOTSUPP;
 311                }
 312        } else if (type == hwmon_in && attr == hwmon_in_input) {
 313                switch (channel) {
 314                case 0:
 315                        ret = corsairpsu_get_value(priv, PSU_CMD_IN_VOLTS, 0, val);
 316                        break;
 317                case 1 ... 3:
 318                        ret = corsairpsu_get_value(priv, PSU_CMD_RAIL_OUT_VOLTS, channel - 1, val);
 319                        break;
 320                default:
 321                        return -EOPNOTSUPP;
 322                }
 323        } else if (type == hwmon_curr && attr == hwmon_curr_input) {
 324                switch (channel) {
 325                case 0:
 326                        ret = corsairpsu_get_value(priv, PSU_CMD_IN_AMPS, 0, val);
 327                        break;
 328                case 1 ... 3:
 329                        ret = corsairpsu_get_value(priv, PSU_CMD_RAIL_AMPS, channel - 1, val);
 330                        break;
 331                default:
 332                        return -EOPNOTSUPP;
 333                }
 334        } else {
 335                return -EOPNOTSUPP;
 336        }
 337
 338        if (ret < 0)
 339                return ret;
 340
 341        return 0;
 342}
 343
 344static int corsairpsu_hwmon_ops_read_string(struct device *dev, enum hwmon_sensor_types type,
 345                                            u32 attr, int channel, const char **str)
 346{
 347        if (type == hwmon_temp && attr == hwmon_temp_label) {
 348                *str = channel ? L_TEMP1 : L_TEMP0;
 349                return 0;
 350        } else if (type == hwmon_fan && attr == hwmon_fan_label) {
 351                *str = L_FAN;
 352                return 0;
 353        } else if (type == hwmon_power && attr == hwmon_power_label && channel < 4) {
 354                *str = label_watts[channel];
 355                return 0;
 356        } else if (type == hwmon_in && attr == hwmon_in_label && channel < 4) {
 357                *str = label_volts[channel];
 358                return 0;
 359        } else if (type == hwmon_curr && attr == hwmon_curr_label && channel < 4) {
 360                *str = label_amps[channel];
 361                return 0;
 362        }
 363
 364        return -EOPNOTSUPP;
 365}
 366
 367static const struct hwmon_ops corsairpsu_hwmon_ops = {
 368        .is_visible     = corsairpsu_hwmon_ops_is_visible,
 369        .read           = corsairpsu_hwmon_ops_read,
 370        .read_string    = corsairpsu_hwmon_ops_read_string,
 371};
 372
 373static const struct hwmon_channel_info *corsairpsu_info[] = {
 374        HWMON_CHANNEL_INFO(chip,
 375                           HWMON_C_REGISTER_TZ),
 376        HWMON_CHANNEL_INFO(temp,
 377                           HWMON_T_INPUT | HWMON_T_LABEL,
 378                           HWMON_T_INPUT | HWMON_T_LABEL),
 379        HWMON_CHANNEL_INFO(fan,
 380                           HWMON_F_INPUT | HWMON_F_LABEL),
 381        HWMON_CHANNEL_INFO(power,
 382                           HWMON_P_INPUT | HWMON_P_LABEL,
 383                           HWMON_P_INPUT | HWMON_P_LABEL,
 384                           HWMON_P_INPUT | HWMON_P_LABEL,
 385                           HWMON_P_INPUT | HWMON_P_LABEL),
 386        HWMON_CHANNEL_INFO(in,
 387                           HWMON_I_INPUT | HWMON_I_LABEL,
 388                           HWMON_I_INPUT | HWMON_I_LABEL,
 389                           HWMON_I_INPUT | HWMON_I_LABEL,
 390                           HWMON_I_INPUT | HWMON_I_LABEL),
 391        HWMON_CHANNEL_INFO(curr,
 392                           HWMON_C_INPUT | HWMON_C_LABEL,
 393                           HWMON_C_INPUT | HWMON_C_LABEL,
 394                           HWMON_C_INPUT | HWMON_C_LABEL,
 395                           HWMON_C_INPUT | HWMON_C_LABEL),
 396        NULL
 397};
 398
 399static const struct hwmon_chip_info corsairpsu_chip_info = {
 400        .ops    = &corsairpsu_hwmon_ops,
 401        .info   = corsairpsu_info,
 402};
 403
 404#ifdef CONFIG_DEBUG_FS
 405
 406static void print_uptime(struct seq_file *seqf, u8 cmd)
 407{
 408        struct corsairpsu_data *priv = seqf->private;
 409        long val;
 410        int ret;
 411
 412        ret = corsairpsu_get_value(priv, cmd, 0, &val);
 413        if (ret < 0) {
 414                seq_puts(seqf, "N/A\n");
 415                return;
 416        }
 417
 418        if (val > SECONDS_PER_DAY) {
 419                seq_printf(seqf, "%ld day(s), %02ld:%02ld:%02ld\n", val / SECONDS_PER_DAY,
 420                           val % SECONDS_PER_DAY / SECONDS_PER_HOUR, val % SECONDS_PER_HOUR / 60,
 421                           val % 60);
 422                return;
 423        }
 424
 425        seq_printf(seqf, "%02ld:%02ld:%02ld\n", val % SECONDS_PER_DAY / SECONDS_PER_HOUR,
 426                   val % SECONDS_PER_HOUR / 60, val % 60);
 427}
 428
 429static int uptime_show(struct seq_file *seqf, void *unused)
 430{
 431        print_uptime(seqf, PSU_CMD_UPTIME);
 432
 433        return 0;
 434}
 435DEFINE_SHOW_ATTRIBUTE(uptime);
 436
 437static int uptime_total_show(struct seq_file *seqf, void *unused)
 438{
 439        print_uptime(seqf, PSU_CMD_TOTAL_UPTIME);
 440
 441        return 0;
 442}
 443DEFINE_SHOW_ATTRIBUTE(uptime_total);
 444
 445static int vendor_show(struct seq_file *seqf, void *unused)
 446{
 447        struct corsairpsu_data *priv = seqf->private;
 448
 449        seq_printf(seqf, "%s\n", priv->vendor);
 450
 451        return 0;
 452}
 453DEFINE_SHOW_ATTRIBUTE(vendor);
 454
 455static int product_show(struct seq_file *seqf, void *unused)
 456{
 457        struct corsairpsu_data *priv = seqf->private;
 458
 459        seq_printf(seqf, "%s\n", priv->product);
 460
 461        return 0;
 462}
 463DEFINE_SHOW_ATTRIBUTE(product);
 464
 465static void corsairpsu_debugfs_init(struct corsairpsu_data *priv)
 466{
 467        char name[32];
 468
 469        scnprintf(name, sizeof(name), "%s-%s", DRIVER_NAME, dev_name(&priv->hdev->dev));
 470
 471        priv->debugfs = debugfs_create_dir(name, NULL);
 472        debugfs_create_file("uptime", 0444, priv->debugfs, priv, &uptime_fops);
 473        debugfs_create_file("uptime_total", 0444, priv->debugfs, priv, &uptime_total_fops);
 474        debugfs_create_file("vendor", 0444, priv->debugfs, priv, &vendor_fops);
 475        debugfs_create_file("product", 0444, priv->debugfs, priv, &product_fops);
 476}
 477
 478#else
 479
 480static void corsairpsu_debugfs_init(struct corsairpsu_data *priv)
 481{
 482}
 483
 484#endif
 485
 486static int corsairpsu_probe(struct hid_device *hdev, const struct hid_device_id *id)
 487{
 488        struct corsairpsu_data *priv;
 489        int ret;
 490
 491        priv = devm_kzalloc(&hdev->dev, sizeof(struct corsairpsu_data), GFP_KERNEL);
 492        if (!priv)
 493                return -ENOMEM;
 494
 495        priv->cmd_buffer = devm_kmalloc(&hdev->dev, CMD_BUFFER_SIZE, GFP_KERNEL);
 496        if (!priv->cmd_buffer)
 497                return -ENOMEM;
 498
 499        ret = hid_parse(hdev);
 500        if (ret)
 501                return ret;
 502
 503        ret = hid_hw_start(hdev, HID_CONNECT_HIDRAW);
 504        if (ret)
 505                return ret;
 506
 507        ret = hid_hw_open(hdev);
 508        if (ret)
 509                goto fail_and_stop;
 510
 511        priv->hdev = hdev;
 512        hid_set_drvdata(hdev, priv);
 513        mutex_init(&priv->lock);
 514        init_completion(&priv->wait_completion);
 515
 516        hid_device_io_start(hdev);
 517
 518        ret = corsairpsu_init(priv);
 519        if (ret < 0) {
 520                dev_err(&hdev->dev, "unable to initialize device (%d)\n", ret);
 521                goto fail_and_stop;
 522        }
 523
 524        ret = corsairpsu_fwinfo(priv);
 525        if (ret < 0) {
 526                dev_err(&hdev->dev, "unable to query firmware (%d)\n", ret);
 527                goto fail_and_stop;
 528        }
 529
 530        priv->hwmon_dev = hwmon_device_register_with_info(&hdev->dev, "corsairpsu", priv,
 531                                                          &corsairpsu_chip_info, 0);
 532
 533        if (IS_ERR(priv->hwmon_dev)) {
 534                ret = PTR_ERR(priv->hwmon_dev);
 535                goto fail_and_close;
 536        }
 537
 538        corsairpsu_debugfs_init(priv);
 539
 540        return 0;
 541
 542fail_and_close:
 543        hid_hw_close(hdev);
 544fail_and_stop:
 545        hid_hw_stop(hdev);
 546        return ret;
 547}
 548
 549static void corsairpsu_remove(struct hid_device *hdev)
 550{
 551        struct corsairpsu_data *priv = hid_get_drvdata(hdev);
 552
 553        debugfs_remove_recursive(priv->debugfs);
 554        hwmon_device_unregister(priv->hwmon_dev);
 555        hid_hw_close(hdev);
 556        hid_hw_stop(hdev);
 557}
 558
 559static int corsairpsu_raw_event(struct hid_device *hdev, struct hid_report *report, u8 *data,
 560                                int size)
 561{
 562        struct corsairpsu_data *priv = hid_get_drvdata(hdev);
 563
 564        if (completion_done(&priv->wait_completion))
 565                return 0;
 566
 567        memcpy(priv->cmd_buffer, data, min(CMD_BUFFER_SIZE, size));
 568        complete(&priv->wait_completion);
 569
 570        return 0;
 571}
 572
 573static const struct hid_device_id corsairpsu_idtable[] = {
 574        { HID_USB_DEVICE(0x1b1c, 0x1c03) }, /* Corsair HX550i */
 575        { HID_USB_DEVICE(0x1b1c, 0x1c04) }, /* Corsair HX650i */
 576        { HID_USB_DEVICE(0x1b1c, 0x1c05) }, /* Corsair HX750i */
 577        { HID_USB_DEVICE(0x1b1c, 0x1c06) }, /* Corsair HX850i */
 578        { HID_USB_DEVICE(0x1b1c, 0x1c07) }, /* Corsair HX1000i */
 579        { HID_USB_DEVICE(0x1b1c, 0x1c08) }, /* Corsair HX1200i */
 580        { HID_USB_DEVICE(0x1b1c, 0x1c09) }, /* Corsair RM550i */
 581        { HID_USB_DEVICE(0x1b1c, 0x1c0a) }, /* Corsair RM650i */
 582        { HID_USB_DEVICE(0x1b1c, 0x1c0b) }, /* Corsair RM750i */
 583        { HID_USB_DEVICE(0x1b1c, 0x1c0c) }, /* Corsair RM850i */
 584        { HID_USB_DEVICE(0x1b1c, 0x1c0d) }, /* Corsair RM1000i */
 585        { },
 586};
 587MODULE_DEVICE_TABLE(hid, corsairpsu_idtable);
 588
 589static struct hid_driver corsairpsu_driver = {
 590        .name           = DRIVER_NAME,
 591        .id_table       = corsairpsu_idtable,
 592        .probe          = corsairpsu_probe,
 593        .remove         = corsairpsu_remove,
 594        .raw_event      = corsairpsu_raw_event,
 595};
 596module_hid_driver(corsairpsu_driver);
 597
 598MODULE_LICENSE("GPL");
 599MODULE_AUTHOR("Wilken Gottwalt <wilken.gottwalt@posteo.net>");
 600MODULE_DESCRIPTION("Linux driver for Corsair power supplies with HID sensors interface");
 601