1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * HID Sensors Driver 4 * Copyright (c) 2012, Intel Corporation. 5 */ 6 #include <linux/device.h> 7 #include <linux/platform_device.h> 8 #include <linux/module.h> 9 #include <linux/interrupt.h> 10 #include <linux/irq.h> 11 #include <linux/slab.h> 12 #include <linux/delay.h> 13 #include <linux/hid-sensor-hub.h> 14 #include <linux/iio/iio.h> 15 #include <linux/iio/sysfs.h> 16 #include <linux/iio/buffer.h> 17 #include <linux/iio/trigger_consumer.h> 18 #include <linux/iio/triggered_buffer.h> 19 #include "../common/hid-sensors/hid-sensor-trigger.h" 20 21 enum magn_3d_channel { 22 CHANNEL_SCAN_INDEX_X, 23 CHANNEL_SCAN_INDEX_Y, 24 CHANNEL_SCAN_INDEX_Z, 25 CHANNEL_SCAN_INDEX_NORTH_MAGN_TILT_COMP, 26 CHANNEL_SCAN_INDEX_NORTH_TRUE_TILT_COMP, 27 CHANNEL_SCAN_INDEX_NORTH_MAGN, 28 CHANNEL_SCAN_INDEX_NORTH_TRUE, 29 MAGN_3D_CHANNEL_MAX, 30 }; 31 32 struct common_attributes { 33 int scale_pre_decml; 34 int scale_post_decml; 35 int scale_precision; 36 int value_offset; 37 }; 38 39 struct magn_3d_state { 40 struct hid_sensor_hub_callbacks callbacks; 41 struct hid_sensor_common magn_flux_attributes; 42 struct hid_sensor_common rot_attributes; 43 struct hid_sensor_hub_attribute_info magn[MAGN_3D_CHANNEL_MAX]; 44 45 /* dynamically sized array to hold sensor values */ 46 u32 *iio_vals; 47 /* array of pointers to sensor value */ 48 u32 *magn_val_addr[MAGN_3D_CHANNEL_MAX]; 49 50 struct common_attributes magn_flux_attr; 51 struct common_attributes rot_attr; 52 }; 53 54 static const u32 magn_3d_addresses[MAGN_3D_CHANNEL_MAX] = { 55 HID_USAGE_SENSOR_ORIENT_MAGN_FLUX_X_AXIS, 56 HID_USAGE_SENSOR_ORIENT_MAGN_FLUX_Y_AXIS, 57 HID_USAGE_SENSOR_ORIENT_MAGN_FLUX_Z_AXIS, 58 HID_USAGE_SENSOR_ORIENT_COMP_MAGN_NORTH, 59 HID_USAGE_SENSOR_ORIENT_COMP_TRUE_NORTH, 60 HID_USAGE_SENSOR_ORIENT_MAGN_NORTH, 61 HID_USAGE_SENSOR_ORIENT_TRUE_NORTH, 62 }; 63 64 /* Channel definitions */ 65 static const struct iio_chan_spec magn_3d_channels[] = { 66 { 67 .type = IIO_MAGN, 68 .modified = 1, 69 .channel2 = IIO_MOD_X, 70 .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), 71 .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) | 72 BIT(IIO_CHAN_INFO_SCALE) | 73 BIT(IIO_CHAN_INFO_SAMP_FREQ) | 74 BIT(IIO_CHAN_INFO_HYSTERESIS), 75 }, { 76 .type = IIO_MAGN, 77 .modified = 1, 78 .channel2 = IIO_MOD_Y, 79 .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), 80 .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) | 81 BIT(IIO_CHAN_INFO_SCALE) | 82 BIT(IIO_CHAN_INFO_SAMP_FREQ) | 83 BIT(IIO_CHAN_INFO_HYSTERESIS), 84 }, { 85 .type = IIO_MAGN, 86 .modified = 1, 87 .channel2 = IIO_MOD_Z, 88 .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), 89 .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) | 90 BIT(IIO_CHAN_INFO_SCALE) | 91 BIT(IIO_CHAN_INFO_SAMP_FREQ) | 92 BIT(IIO_CHAN_INFO_HYSTERESIS), 93 }, { 94 .type = IIO_ROT, 95 .modified = 1, 96 .channel2 = IIO_MOD_NORTH_MAGN_TILT_COMP, 97 .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), 98 .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) | 99 BIT(IIO_CHAN_INFO_SCALE) | 100 BIT(IIO_CHAN_INFO_SAMP_FREQ) | 101 BIT(IIO_CHAN_INFO_HYSTERESIS), 102 }, { 103 .type = IIO_ROT, 104 .modified = 1, 105 .channel2 = IIO_MOD_NORTH_TRUE_TILT_COMP, 106 .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), 107 .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) | 108 BIT(IIO_CHAN_INFO_SCALE) | 109 BIT(IIO_CHAN_INFO_SAMP_FREQ) | 110 BIT(IIO_CHAN_INFO_HYSTERESIS), 111 }, { 112 .type = IIO_ROT, 113 .modified = 1, 114 .channel2 = IIO_MOD_NORTH_MAGN, 115 .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), 116 .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) | 117 BIT(IIO_CHAN_INFO_SCALE) | 118 BIT(IIO_CHAN_INFO_SAMP_FREQ) | 119 BIT(IIO_CHAN_INFO_HYSTERESIS), 120 }, { 121 .type = IIO_ROT, 122 .modified = 1, 123 .channel2 = IIO_MOD_NORTH_TRUE, 124 .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), 125 .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) | 126 BIT(IIO_CHAN_INFO_SCALE) | 127 BIT(IIO_CHAN_INFO_SAMP_FREQ) | 128 BIT(IIO_CHAN_INFO_HYSTERESIS), 129 } 130 }; 131 132 /* Adjust channel real bits based on report descriptor */ 133 static void magn_3d_adjust_channel_bit_mask(struct iio_chan_spec *channels, 134 int channel, int size) 135 { 136 channels[channel].scan_type.sign = 's'; 137 /* Real storage bits will change based on the report desc. */ 138 channels[channel].scan_type.realbits = size * 8; 139 /* Maximum size of a sample to capture is u32 */ 140 channels[channel].scan_type.storagebits = sizeof(u32) * 8; 141 } 142 143 /* Channel read_raw handler */ 144 static int magn_3d_read_raw(struct iio_dev *indio_dev, 145 struct iio_chan_spec const *chan, 146 int *val, int *val2, 147 long mask) 148 { 149 struct magn_3d_state *magn_state = iio_priv(indio_dev); 150 int report_id = -1; 151 u32 address; 152 int ret_type; 153 s32 min; 154 155 *val = 0; 156 *val2 = 0; 157 switch (mask) { 158 case IIO_CHAN_INFO_RAW: 159 hid_sensor_power_state(&magn_state->magn_flux_attributes, true); 160 report_id = magn_state->magn[chan->address].report_id; 161 min = magn_state->magn[chan->address].logical_minimum; 162 address = magn_3d_addresses[chan->address]; 163 if (report_id >= 0) 164 *val = sensor_hub_input_attr_get_raw_value( 165 magn_state->magn_flux_attributes.hsdev, 166 HID_USAGE_SENSOR_COMPASS_3D, address, 167 report_id, 168 SENSOR_HUB_SYNC, 169 min < 0); 170 else { 171 *val = 0; 172 hid_sensor_power_state( 173 &magn_state->magn_flux_attributes, 174 false); 175 return -EINVAL; 176 } 177 hid_sensor_power_state(&magn_state->magn_flux_attributes, 178 false); 179 ret_type = IIO_VAL_INT; 180 break; 181 case IIO_CHAN_INFO_SCALE: 182 switch (chan->type) { 183 case IIO_MAGN: 184 *val = magn_state->magn_flux_attr.scale_pre_decml; 185 *val2 = magn_state->magn_flux_attr.scale_post_decml; 186 ret_type = magn_state->magn_flux_attr.scale_precision; 187 break; 188 case IIO_ROT: 189 *val = magn_state->rot_attr.scale_pre_decml; 190 *val2 = magn_state->rot_attr.scale_post_decml; 191 ret_type = magn_state->rot_attr.scale_precision; 192 break; 193 default: 194 ret_type = -EINVAL; 195 } 196 break; 197 case IIO_CHAN_INFO_OFFSET: 198 switch (chan->type) { 199 case IIO_MAGN: 200 *val = magn_state->magn_flux_attr.value_offset; 201 ret_type = IIO_VAL_INT; 202 break; 203 case IIO_ROT: 204 *val = magn_state->rot_attr.value_offset; 205 ret_type = IIO_VAL_INT; 206 break; 207 default: 208 ret_type = -EINVAL; 209 } 210 break; 211 case IIO_CHAN_INFO_SAMP_FREQ: 212 ret_type = hid_sensor_read_samp_freq_value( 213 &magn_state->magn_flux_attributes, val, val2); 214 break; 215 case IIO_CHAN_INFO_HYSTERESIS: 216 switch (chan->type) { 217 case IIO_MAGN: 218 ret_type = hid_sensor_read_raw_hyst_value( 219 &magn_state->magn_flux_attributes, val, val2); 220 break; 221 case IIO_ROT: 222 ret_type = hid_sensor_read_raw_hyst_value( 223 &magn_state->rot_attributes, val, val2); 224 break; 225 default: 226 ret_type = -EINVAL; 227 } 228 break; 229 default: 230 ret_type = -EINVAL; 231 break; 232 } 233 234 return ret_type; 235 } 236 237 /* Channel write_raw handler */ 238 static int magn_3d_write_raw(struct iio_dev *indio_dev, 239 struct iio_chan_spec const *chan, 240 int val, 241 int val2, 242 long mask) 243 { 244 struct magn_3d_state *magn_state = iio_priv(indio_dev); 245 int ret = 0; 246 247 switch (mask) { 248 case IIO_CHAN_INFO_SAMP_FREQ: 249 ret = hid_sensor_write_samp_freq_value( 250 &magn_state->magn_flux_attributes, val, val2); 251 break; 252 case IIO_CHAN_INFO_HYSTERESIS: 253 switch (chan->type) { 254 case IIO_MAGN: 255 ret = hid_sensor_write_raw_hyst_value( 256 &magn_state->magn_flux_attributes, val, val2); 257 break; 258 case IIO_ROT: 259 ret = hid_sensor_write_raw_hyst_value( 260 &magn_state->rot_attributes, val, val2); 261 break; 262 default: 263 ret = -EINVAL; 264 } 265 break; 266 default: 267 ret = -EINVAL; 268 } 269 270 return ret; 271 } 272 273 static const struct iio_info magn_3d_info = { 274 .read_raw = &magn_3d_read_raw, 275 .write_raw = &magn_3d_write_raw, 276 }; 277 278 /* Function to push data to buffer */ 279 static void hid_sensor_push_data(struct iio_dev *indio_dev, const void *data) 280 { 281 dev_dbg(&indio_dev->dev, "hid_sensor_push_data\n"); 282 iio_push_to_buffers(indio_dev, data); 283 } 284 285 /* Callback handler to send event after all samples are received and captured */ 286 static int magn_3d_proc_event(struct hid_sensor_hub_device *hsdev, 287 unsigned usage_id, 288 void *priv) 289 { 290 struct iio_dev *indio_dev = platform_get_drvdata(priv); 291 struct magn_3d_state *magn_state = iio_priv(indio_dev); 292 293 dev_dbg(&indio_dev->dev, "magn_3d_proc_event\n"); 294 if (atomic_read(&magn_state->magn_flux_attributes.data_ready)) 295 hid_sensor_push_data(indio_dev, magn_state->iio_vals); 296 297 return 0; 298 } 299 300 /* Capture samples in local storage */ 301 static int magn_3d_capture_sample(struct hid_sensor_hub_device *hsdev, 302 unsigned usage_id, 303 size_t raw_len, char *raw_data, 304 void *priv) 305 { 306 struct iio_dev *indio_dev = platform_get_drvdata(priv); 307 struct magn_3d_state *magn_state = iio_priv(indio_dev); 308 int offset; 309 int ret = 0; 310 u32 *iio_val = NULL; 311 312 switch (usage_id) { 313 case HID_USAGE_SENSOR_ORIENT_MAGN_FLUX_X_AXIS: 314 case HID_USAGE_SENSOR_ORIENT_MAGN_FLUX_Y_AXIS: 315 case HID_USAGE_SENSOR_ORIENT_MAGN_FLUX_Z_AXIS: 316 offset = (usage_id - HID_USAGE_SENSOR_ORIENT_MAGN_FLUX_X_AXIS) 317 + CHANNEL_SCAN_INDEX_X; 318 break; 319 case HID_USAGE_SENSOR_ORIENT_COMP_MAGN_NORTH: 320 case HID_USAGE_SENSOR_ORIENT_COMP_TRUE_NORTH: 321 case HID_USAGE_SENSOR_ORIENT_MAGN_NORTH: 322 case HID_USAGE_SENSOR_ORIENT_TRUE_NORTH: 323 offset = (usage_id - HID_USAGE_SENSOR_ORIENT_COMP_MAGN_NORTH) 324 + CHANNEL_SCAN_INDEX_NORTH_MAGN_TILT_COMP; 325 break; 326 default: 327 return -EINVAL; 328 } 329 330 iio_val = magn_state->magn_val_addr[offset]; 331 332 if (iio_val != NULL) 333 *iio_val = *((u32 *)raw_data); 334 else 335 ret = -EINVAL; 336 337 return ret; 338 } 339 340 /* Parse report which is specific to an usage id*/ 341 static int magn_3d_parse_report(struct platform_device *pdev, 342 struct hid_sensor_hub_device *hsdev, 343 struct iio_chan_spec **channels, 344 int *chan_count, 345 unsigned usage_id, 346 struct magn_3d_state *st) 347 { 348 int i; 349 int attr_count = 0; 350 struct iio_chan_spec *_channels; 351 352 /* Scan for each usage attribute supported */ 353 for (i = 0; i < MAGN_3D_CHANNEL_MAX; i++) { 354 int status; 355 u32 address = magn_3d_addresses[i]; 356 357 /* Check if usage attribute exists in the sensor hub device */ 358 status = sensor_hub_input_get_attribute_info(hsdev, 359 HID_INPUT_REPORT, 360 usage_id, 361 address, 362 &(st->magn[i])); 363 if (!status) 364 attr_count++; 365 } 366 367 if (attr_count <= 0) { 368 dev_err(&pdev->dev, 369 "failed to find any supported usage attributes in report\n"); 370 return -EINVAL; 371 } 372 373 dev_dbg(&pdev->dev, "magn_3d Found %d usage attributes\n", 374 attr_count); 375 dev_dbg(&pdev->dev, "magn_3d X: %x:%x Y: %x:%x Z: %x:%x\n", 376 st->magn[0].index, 377 st->magn[0].report_id, 378 st->magn[1].index, st->magn[1].report_id, 379 st->magn[2].index, st->magn[2].report_id); 380 381 /* Setup IIO channel array */ 382 _channels = devm_kcalloc(&pdev->dev, attr_count, 383 sizeof(struct iio_chan_spec), 384 GFP_KERNEL); 385 if (!_channels) { 386 dev_err(&pdev->dev, 387 "failed to allocate space for iio channels\n"); 388 return -ENOMEM; 389 } 390 391 st->iio_vals = devm_kcalloc(&pdev->dev, attr_count, 392 sizeof(u32), 393 GFP_KERNEL); 394 if (!st->iio_vals) { 395 dev_err(&pdev->dev, 396 "failed to allocate space for iio values array\n"); 397 return -ENOMEM; 398 } 399 400 for (i = 0, *chan_count = 0; 401 i < MAGN_3D_CHANNEL_MAX && *chan_count < attr_count; 402 i++){ 403 if (st->magn[i].index >= 0) { 404 /* Setup IIO channel struct */ 405 (_channels[*chan_count]) = magn_3d_channels[i]; 406 (_channels[*chan_count]).scan_index = *chan_count; 407 (_channels[*chan_count]).address = i; 408 409 /* Set magn_val_addr to iio value address */ 410 st->magn_val_addr[i] = &(st->iio_vals[*chan_count]); 411 magn_3d_adjust_channel_bit_mask(_channels, 412 *chan_count, 413 st->magn[i].size); 414 (*chan_count)++; 415 } 416 } 417 418 if (*chan_count <= 0) { 419 dev_err(&pdev->dev, 420 "failed to find any magnetic channels setup\n"); 421 return -EINVAL; 422 } 423 424 *channels = _channels; 425 426 dev_dbg(&pdev->dev, "magn_3d Setup %d IIO channels\n", 427 *chan_count); 428 429 st->magn_flux_attr.scale_precision = hid_sensor_format_scale( 430 HID_USAGE_SENSOR_COMPASS_3D, 431 &st->magn[CHANNEL_SCAN_INDEX_X], 432 &st->magn_flux_attr.scale_pre_decml, 433 &st->magn_flux_attr.scale_post_decml); 434 st->rot_attr.scale_precision 435 = hid_sensor_format_scale( 436 HID_USAGE_SENSOR_ORIENT_COMP_MAGN_NORTH, 437 &st->magn[CHANNEL_SCAN_INDEX_NORTH_MAGN_TILT_COMP], 438 &st->rot_attr.scale_pre_decml, 439 &st->rot_attr.scale_post_decml); 440 441 /* Set Sensitivity field ids, when there is no individual modifier */ 442 if (st->magn_flux_attributes.sensitivity.index < 0) { 443 sensor_hub_input_get_attribute_info(hsdev, 444 HID_FEATURE_REPORT, usage_id, 445 HID_USAGE_SENSOR_DATA_MOD_CHANGE_SENSITIVITY_ABS | 446 HID_USAGE_SENSOR_DATA_ORIENTATION, 447 &st->magn_flux_attributes.sensitivity); 448 dev_dbg(&pdev->dev, "Sensitivity index:report %d:%d\n", 449 st->magn_flux_attributes.sensitivity.index, 450 st->magn_flux_attributes.sensitivity.report_id); 451 } 452 if (st->magn_flux_attributes.sensitivity.index < 0) { 453 sensor_hub_input_get_attribute_info(hsdev, 454 HID_FEATURE_REPORT, usage_id, 455 HID_USAGE_SENSOR_DATA_MOD_CHANGE_SENSITIVITY_ABS | 456 HID_USAGE_SENSOR_ORIENT_MAGN_FLUX, 457 &st->magn_flux_attributes.sensitivity); 458 dev_dbg(&pdev->dev, "Sensitivity index:report %d:%d\n", 459 st->magn_flux_attributes.sensitivity.index, 460 st->magn_flux_attributes.sensitivity.report_id); 461 } 462 if (st->rot_attributes.sensitivity.index < 0) { 463 sensor_hub_input_get_attribute_info(hsdev, 464 HID_FEATURE_REPORT, usage_id, 465 HID_USAGE_SENSOR_DATA_MOD_CHANGE_SENSITIVITY_ABS | 466 HID_USAGE_SENSOR_ORIENT_COMP_MAGN_NORTH, 467 &st->rot_attributes.sensitivity); 468 dev_dbg(&pdev->dev, "Sensitivity index:report %d:%d\n", 469 st->rot_attributes.sensitivity.index, 470 st->rot_attributes.sensitivity.report_id); 471 } 472 473 return 0; 474 } 475 476 /* Function to initialize the processing for usage id */ 477 static int hid_magn_3d_probe(struct platform_device *pdev) 478 { 479 int ret = 0; 480 static char *name = "magn_3d"; 481 struct iio_dev *indio_dev; 482 struct magn_3d_state *magn_state; 483 struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data; 484 struct iio_chan_spec *channels; 485 int chan_count = 0; 486 487 indio_dev = devm_iio_device_alloc(&pdev->dev, 488 sizeof(struct magn_3d_state)); 489 if (indio_dev == NULL) 490 return -ENOMEM; 491 492 platform_set_drvdata(pdev, indio_dev); 493 494 magn_state = iio_priv(indio_dev); 495 magn_state->magn_flux_attributes.hsdev = hsdev; 496 magn_state->magn_flux_attributes.pdev = pdev; 497 498 ret = hid_sensor_parse_common_attributes(hsdev, 499 HID_USAGE_SENSOR_COMPASS_3D, 500 &magn_state->magn_flux_attributes); 501 if (ret) { 502 dev_err(&pdev->dev, "failed to setup common attributes\n"); 503 return ret; 504 } 505 magn_state->rot_attributes = magn_state->magn_flux_attributes; 506 507 ret = magn_3d_parse_report(pdev, hsdev, 508 &channels, &chan_count, 509 HID_USAGE_SENSOR_COMPASS_3D, magn_state); 510 if (ret) { 511 dev_err(&pdev->dev, "failed to parse report\n"); 512 return ret; 513 } 514 515 indio_dev->channels = channels; 516 indio_dev->num_channels = chan_count; 517 indio_dev->dev.parent = &pdev->dev; 518 indio_dev->info = &magn_3d_info; 519 indio_dev->name = name; 520 indio_dev->modes = INDIO_DIRECT_MODE; 521 522 ret = iio_triggered_buffer_setup(indio_dev, &iio_pollfunc_store_time, 523 NULL, NULL); 524 if (ret) { 525 dev_err(&pdev->dev, "failed to initialize trigger buffer\n"); 526 return ret; 527 } 528 atomic_set(&magn_state->magn_flux_attributes.data_ready, 0); 529 ret = hid_sensor_setup_trigger(indio_dev, name, 530 &magn_state->magn_flux_attributes); 531 if (ret < 0) { 532 dev_err(&pdev->dev, "trigger setup failed\n"); 533 goto error_unreg_buffer_funcs; 534 } 535 536 ret = iio_device_register(indio_dev); 537 if (ret) { 538 dev_err(&pdev->dev, "device register failed\n"); 539 goto error_remove_trigger; 540 } 541 542 magn_state->callbacks.send_event = magn_3d_proc_event; 543 magn_state->callbacks.capture_sample = magn_3d_capture_sample; 544 magn_state->callbacks.pdev = pdev; 545 ret = sensor_hub_register_callback(hsdev, HID_USAGE_SENSOR_COMPASS_3D, 546 &magn_state->callbacks); 547 if (ret < 0) { 548 dev_err(&pdev->dev, "callback reg failed\n"); 549 goto error_iio_unreg; 550 } 551 552 return ret; 553 554 error_iio_unreg: 555 iio_device_unregister(indio_dev); 556 error_remove_trigger: 557 hid_sensor_remove_trigger(&magn_state->magn_flux_attributes); 558 error_unreg_buffer_funcs: 559 iio_triggered_buffer_cleanup(indio_dev); 560 return ret; 561 } 562 563 /* Function to deinitialize the processing for usage id */ 564 static int hid_magn_3d_remove(struct platform_device *pdev) 565 { 566 struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data; 567 struct iio_dev *indio_dev = platform_get_drvdata(pdev); 568 struct magn_3d_state *magn_state = iio_priv(indio_dev); 569 570 sensor_hub_remove_callback(hsdev, HID_USAGE_SENSOR_COMPASS_3D); 571 iio_device_unregister(indio_dev); 572 hid_sensor_remove_trigger(&magn_state->magn_flux_attributes); 573 iio_triggered_buffer_cleanup(indio_dev); 574 575 return 0; 576 } 577 578 static const struct platform_device_id hid_magn_3d_ids[] = { 579 { 580 /* Format: HID-SENSOR-usage_id_in_hex_lowercase */ 581 .name = "HID-SENSOR-200083", 582 }, 583 { /* sentinel */ } 584 }; 585 MODULE_DEVICE_TABLE(platform, hid_magn_3d_ids); 586 587 static struct platform_driver hid_magn_3d_platform_driver = { 588 .id_table = hid_magn_3d_ids, 589 .driver = { 590 .name = KBUILD_MODNAME, 591 .pm = &hid_sensor_pm_ops, 592 }, 593 .probe = hid_magn_3d_probe, 594 .remove = hid_magn_3d_remove, 595 }; 596 module_platform_driver(hid_magn_3d_platform_driver); 597 598 MODULE_DESCRIPTION("HID Sensor Magnetometer 3D"); 599 MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@intel.com>"); 600 MODULE_LICENSE("GPL"); 601