lm75.c revision 1.28
1 /* $NetBSD: lm75.c,v 1.28 2016/01/03 17:27:57 jdc Exp $ */ 2 3 /* 4 * Copyright (c) 2003 Wasabi Systems, Inc. 5 * All rights reserved. 6 * 7 * Written by Jason R. Thorpe for Wasabi Systems, Inc. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed for the NetBSD Project by 20 * Wasabi Systems, Inc. 21 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22 * or promote products derived from this software without specific prior 23 * written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 * POSSIBILITY OF SUCH DAMAGE. 36 */ 37 38 #include <sys/cdefs.h> 39 __KERNEL_RCSID(0, "$NetBSD: lm75.c,v 1.28 2016/01/03 17:27:57 jdc Exp $"); 40 41 #include <sys/param.h> 42 #include <sys/systm.h> 43 #include <sys/device.h> 44 #include <sys/kernel.h> 45 #include <sys/sysctl.h> 46 47 #include <dev/sysmon/sysmonvar.h> 48 49 #include <dev/i2c/i2cvar.h> 50 #include <dev/i2c/lm75reg.h> 51 52 struct lmtemp_softc { 53 device_t sc_dev; 54 i2c_tag_t sc_tag; 55 int sc_address; 56 57 struct sysmon_envsys *sc_sme; 58 envsys_data_t sc_sensor; 59 int sc_tmax; 60 uint32_t sc_smax, sc_smin, sc_scrit; 61 62 uint32_t (*sc_lmtemp_decode)(const uint8_t *, int); 63 void (*sc_lmtemp_encode)(const uint32_t, uint8_t *, int); 64 }; 65 66 static int lmtemp_match(device_t, cfdata_t, void *); 67 static void lmtemp_attach(device_t, device_t, void *); 68 69 CFATTACH_DECL_NEW(lmtemp, sizeof(struct lmtemp_softc), 70 lmtemp_match, lmtemp_attach, NULL, NULL); 71 72 static void lmtemp_refresh(struct sysmon_envsys *, envsys_data_t *); 73 static int lmtemp_config_write(struct lmtemp_softc *, uint8_t); 74 static int lmtemp_temp_write(struct lmtemp_softc *, uint8_t, uint32_t, 75 int); 76 static int lmtemp_temp_read(struct lmtemp_softc *, uint8_t, uint32_t *, 77 int); 78 static uint32_t lmtemp_decode_lm75(const uint8_t *, int); 79 static uint32_t lmtemp_decode_ds75(const uint8_t *, int); 80 static uint32_t lmtemp_decode_lm77(const uint8_t *, int); 81 static void lmtemp_encode_lm75(const uint32_t, uint8_t *, int); 82 static void lmtemp_encode_ds75(const uint32_t, uint8_t *, int); 83 static void lmtemp_encode_lm77(const uint32_t, uint8_t *, int); 84 static void lmtemp_getlim_lm75(struct sysmon_envsys *, envsys_data_t *, 85 sysmon_envsys_lim_t *, uint32_t *); 86 static void lmtemp_getlim_lm77(struct sysmon_envsys *, envsys_data_t *, 87 sysmon_envsys_lim_t *, uint32_t *); 88 static void lmtemp_setlim_lm75(struct sysmon_envsys *, envsys_data_t *, 89 sysmon_envsys_lim_t *, uint32_t *); 90 static void lmtemp_setlim_lm77(struct sysmon_envsys *, envsys_data_t *, 91 sysmon_envsys_lim_t *, uint32_t *); 92 93 static void lmtemp_setup_sysctl(struct lmtemp_softc *); 94 static int sysctl_lm75_temp(SYSCTLFN_ARGS); 95 96 static const char * lmtemp_compats[] = { 97 "i2c-lm75", 98 /* 99 * see XXX in _attach() below: add code once non-lm75 matches are 100 * added here! 101 */ 102 NULL 103 }; 104 105 enum { 106 lmtemp_lm75 = 0, 107 lmtemp_ds75, 108 lmtemp_lm77, 109 }; 110 static const struct { 111 int lmtemp_type; 112 const char *lmtemp_name; 113 int lmtemp_addrmask; 114 int lmtemp_addr; 115 uint32_t (*lmtemp_decode)(const uint8_t *, int); 116 void (*lmtemp_encode)(const uint32_t, uint8_t *, int); 117 void (*lmtemp_getlim)(struct sysmon_envsys *, envsys_data_t *, 118 sysmon_envsys_lim_t *, uint32_t *); 119 void (*lmtemp_setlim)(struct sysmon_envsys *, envsys_data_t *, 120 sysmon_envsys_lim_t *, uint32_t *); 121 } lmtemptbl[] = { 122 { lmtemp_lm75, "LM75", LM75_ADDRMASK, LM75_ADDR, 123 lmtemp_decode_lm75, lmtemp_encode_lm75, 124 lmtemp_getlim_lm75, lmtemp_setlim_lm75 }, 125 { lmtemp_ds75, "DS75", LM75_ADDRMASK, LM75_ADDR, 126 lmtemp_decode_ds75, lmtemp_encode_ds75, 127 lmtemp_getlim_lm75, lmtemp_setlim_lm75 }, 128 { lmtemp_lm77, "LM77", LM77_ADDRMASK, LM77_ADDR, 129 lmtemp_decode_lm77, lmtemp_encode_lm77, 130 lmtemp_getlim_lm77, lmtemp_setlim_lm77 }, 131 { -1, NULL, 0, 0, 132 NULL, NULL, 133 NULL, NULL } 134 }; 135 136 static int 137 lmtemp_match(device_t parent, cfdata_t cf, void *aux) 138 { 139 struct i2c_attach_args *ia = aux; 140 int i; 141 142 if (ia->ia_name == NULL) { 143 /* 144 * Indirect config - not much we can do! 145 */ 146 for (i = 0; lmtemptbl[i].lmtemp_type != -1 ; i++) 147 if (lmtemptbl[i].lmtemp_type == cf->cf_flags) 148 break; 149 if (lmtemptbl[i].lmtemp_type == -1) 150 return 0; 151 152 if ((ia->ia_addr & lmtemptbl[i].lmtemp_addrmask) == 153 lmtemptbl[i].lmtemp_addr) 154 return 1; 155 } else { 156 /* 157 * Direct config - match via the list of compatible 158 * hardware or simply match the device name. 159 */ 160 if (ia->ia_ncompat > 0) { 161 if (iic_compat_match(ia, lmtemp_compats)) 162 return 1; 163 } else { 164 if (strcmp(ia->ia_name, "lmtemp") == 0) 165 return 1; 166 } 167 } 168 169 170 return 0; 171 } 172 173 static void 174 lmtemp_attach(device_t parent, device_t self, void *aux) 175 { 176 struct lmtemp_softc *sc = device_private(self); 177 struct i2c_attach_args *ia = aux; 178 int i; 179 180 sc->sc_dev = self; 181 if (ia->ia_name == NULL) { 182 for (i = 0; lmtemptbl[i].lmtemp_type != -1 ; i++) 183 if (lmtemptbl[i].lmtemp_type == 184 device_cfdata(self)->cf_flags) 185 break; 186 } else { 187 /* XXX - add code when adding other direct matches! */ 188 i = 0; 189 } 190 191 sc->sc_tag = ia->ia_tag; 192 sc->sc_address = ia->ia_addr; 193 194 aprint_naive(": Temperature Sensor\n"); 195 if (ia->ia_name) { 196 aprint_normal(": %s %s Temperature Sensor\n", ia->ia_name, 197 lmtemptbl[i].lmtemp_name); 198 } else { 199 aprint_normal(": %s Temperature Sensor\n", 200 lmtemptbl[i].lmtemp_name); 201 } 202 203 sc->sc_lmtemp_decode = lmtemptbl[i].lmtemp_decode; 204 sc->sc_lmtemp_encode = lmtemptbl[i].lmtemp_encode; 205 206 iic_acquire_bus(sc->sc_tag, I2C_F_POLL); 207 208 /* Read temperature limit(s) and remember initial value(s). */ 209 if (lmtemp_temp_read(sc, LM75_REG_TOS_SET_POINT, &sc->sc_smax, 1) 210 != 0) { 211 aprint_error_dev(self, "unable to read Tos register\n"); 212 iic_release_bus(sc->sc_tag, I2C_F_POLL); 213 return; 214 } 215 sc->sc_tmax = sc->sc_smax; 216 if (i == lmtemp_lm77) { 217 if (lmtemp_temp_read(sc, LM77_REG_TLOW_SET_POINT, 218 &sc->sc_smax, 1) != 0) { 219 aprint_error_dev(self, 220 "unable to read low register\n"); 221 iic_release_bus(sc->sc_tag, I2C_F_POLL); 222 return; 223 } 224 if (lmtemp_temp_read(sc, LM77_REG_THIGH_SET_POINT, 225 &sc->sc_smax, 1) != 0) { 226 aprint_error_dev(self, 227 "unable to read high register\n"); 228 iic_release_bus(sc->sc_tag, I2C_F_POLL); 229 return; 230 } 231 } 232 233 if (i == lmtemp_lm75) 234 lmtemp_setup_sysctl(sc); 235 236 /* Set the configuration of the LM75 to defaults. */ 237 if (lmtemp_config_write(sc, LM75_CONFIG_FAULT_QUEUE_4) != 0) { 238 aprint_error_dev(self, "unable to write config register\n"); 239 iic_release_bus(sc->sc_tag, I2C_F_POLL); 240 return; 241 } 242 iic_release_bus(sc->sc_tag, I2C_F_POLL); 243 244 sc->sc_sme = sysmon_envsys_create(); 245 /* Initialize sensor data. */ 246 sc->sc_sensor.units = ENVSYS_STEMP; 247 sc->sc_sensor.state = ENVSYS_SINVALID; 248 sc->sc_sensor.flags = ENVSYS_FMONLIMITS; 249 (void)strlcpy(sc->sc_sensor.desc, 250 ia->ia_name? ia->ia_name : device_xname(self), 251 sizeof(sc->sc_sensor.desc)); 252 if (sysmon_envsys_sensor_attach(sc->sc_sme, &sc->sc_sensor)) { 253 sysmon_envsys_destroy(sc->sc_sme); 254 return; 255 } 256 257 /* Hook into system monitor. */ 258 sc->sc_sme->sme_name = device_xname(self); 259 sc->sc_sme->sme_cookie = sc; 260 sc->sc_sme->sme_refresh = lmtemp_refresh; 261 sc->sc_sme->sme_get_limits = lmtemptbl[i].lmtemp_getlim; 262 sc->sc_sme->sme_set_limits = lmtemptbl[i].lmtemp_setlim; 263 264 if (sysmon_envsys_register(sc->sc_sme)) { 265 aprint_error_dev(self, "unable to register with sysmon\n"); 266 sysmon_envsys_destroy(sc->sc_sme); 267 } 268 } 269 270 static int 271 lmtemp_config_write(struct lmtemp_softc *sc, uint8_t val) 272 { 273 uint8_t cmdbuf[2]; 274 275 cmdbuf[0] = LM75_REG_CONFIG; 276 cmdbuf[1] = val; 277 278 return iic_exec(sc->sc_tag, I2C_OP_WRITE_WITH_STOP, 279 sc->sc_address, cmdbuf, 1, &cmdbuf[1], 1, I2C_F_POLL); 280 } 281 282 static int 283 lmtemp_temp_write(struct lmtemp_softc *sc, uint8_t reg, uint32_t val, int degc) 284 { 285 uint8_t cmdbuf[3]; 286 287 cmdbuf[0] = reg; 288 sc->sc_lmtemp_encode(val, &cmdbuf[1], degc); 289 290 return iic_exec(sc->sc_tag, I2C_OP_WRITE_WITH_STOP, 291 sc->sc_address, cmdbuf, 1, &cmdbuf[1], 2, I2C_F_POLL); 292 } 293 294 static int 295 lmtemp_temp_read(struct lmtemp_softc *sc, uint8_t which, uint32_t *valp, 296 int degc) 297 { 298 int error; 299 uint8_t cmdbuf[1]; 300 uint8_t buf[LM75_TEMP_LEN]; 301 302 cmdbuf[0] = which; 303 304 error = iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP, 305 sc->sc_address, cmdbuf, 1, buf, LM75_TEMP_LEN, 0); 306 if (error) 307 return error; 308 309 *valp = sc->sc_lmtemp_decode(buf, degc); 310 return 0; 311 } 312 313 static void 314 lmtemp_refresh_sensor_data(struct lmtemp_softc *sc) 315 { 316 uint32_t val; 317 int error; 318 319 error = lmtemp_temp_read(sc, LM75_REG_TEMP, &val, 0); 320 if (error) { 321 #if 0 322 aprint_error_dev(sc->sc_dev, "unable to read temperature, error = %d\n", 323 error); 324 #endif 325 sc->sc_sensor.state = ENVSYS_SINVALID; 326 return; 327 } 328 329 sc->sc_sensor.value_cur = val; 330 sc->sc_sensor.state = ENVSYS_SVALID; 331 } 332 333 static void 334 lmtemp_refresh(struct sysmon_envsys *sme, envsys_data_t *edata) 335 { 336 struct lmtemp_softc *sc = sme->sme_cookie; 337 338 iic_acquire_bus(sc->sc_tag, 0); /* also locks our instance */ 339 lmtemp_refresh_sensor_data(sc); 340 iic_release_bus(sc->sc_tag, 0); /* also unlocks our instance */ 341 } 342 343 static void 344 lmtemp_getlim_lm75(struct sysmon_envsys *sme, envsys_data_t *edata, 345 sysmon_envsys_lim_t *limits, uint32_t *props) 346 { 347 struct lmtemp_softc *sc = sme->sme_cookie; 348 uint32_t val; 349 350 *props &= ~(PROP_CRITMAX); 351 352 iic_acquire_bus(sc->sc_tag, I2C_F_POLL); 353 if (lmtemp_temp_read(sc, LM75_REG_TOS_SET_POINT, &val, 0) == 0) { 354 limits->sel_critmax = val; 355 *props |= PROP_CRITMAX; 356 } 357 iic_release_bus(sc->sc_tag, I2C_F_POLL); 358 } 359 360 static void 361 lmtemp_getlim_lm77(struct sysmon_envsys *sme, envsys_data_t *edata, 362 sysmon_envsys_lim_t *limits, uint32_t *props) 363 { 364 struct lmtemp_softc *sc = sme->sme_cookie; 365 uint32_t val; 366 367 *props &= ~(PROP_CRITMAX | PROP_WARNMAX | PROP_WARNMIN); 368 369 iic_acquire_bus(sc->sc_tag, I2C_F_POLL); 370 if (lmtemp_temp_read(sc, LM77_REG_TCRIT_SET_POINT, &val, 0) == 0) { 371 limits->sel_critmax = val; 372 *props |= PROP_CRITMAX; 373 } 374 if (lmtemp_temp_read(sc, LM77_REG_THIGH_SET_POINT, &val, 0) == 0) { 375 limits->sel_warnmax = val; 376 *props |= PROP_WARNMAX; 377 } 378 if (lmtemp_temp_read(sc, LM77_REG_TLOW_SET_POINT, &val, 0) == 0) { 379 limits->sel_warnmin = val; 380 *props |= PROP_WARNMIN; 381 } 382 iic_release_bus(sc->sc_tag, I2C_F_POLL); 383 } 384 385 static void 386 lmtemp_setlim_lm75(struct sysmon_envsys *sme, envsys_data_t *edata, 387 sysmon_envsys_lim_t *limits, uint32_t *props) 388 { 389 struct lmtemp_softc *sc = sme->sme_cookie; 390 int32_t limit; 391 392 if (*props & PROP_CRITMAX) { 393 if (limits == NULL) /* Restore defaults */ 394 limit = sc->sc_smax; 395 else 396 limit = limits->sel_critmax; 397 iic_acquire_bus(sc->sc_tag, I2C_F_POLL); 398 lmtemp_temp_write(sc, LM75_REG_THYST_SET_POINT, 399 limit - 5000000, 0); 400 lmtemp_temp_write(sc, LM75_REG_TOS_SET_POINT, limit, 0); 401 iic_release_bus(sc->sc_tag, I2C_F_POLL); 402 403 /* Synchronise sysctl */ 404 sc->sc_tmax = (limit - 273150000) / 1000000; 405 } 406 } 407 408 static void 409 lmtemp_setlim_lm77(struct sysmon_envsys *sme, envsys_data_t *edata, 410 sysmon_envsys_lim_t *limits, uint32_t *props) 411 { 412 struct lmtemp_softc *sc = sme->sme_cookie; 413 int32_t limit; 414 415 iic_acquire_bus(sc->sc_tag, I2C_F_POLL); 416 if (*props & PROP_CRITMAX) { 417 if (limits == NULL) /* Restore defaults */ 418 limit = sc->sc_smax; 419 else 420 limit = limits->sel_critmax; 421 lmtemp_temp_write(sc, LM77_REG_TCRIT_SET_POINT, limit, 0); 422 } 423 if (*props & PROP_WARNMAX) { 424 if (limits == NULL) /* Restore defaults */ 425 limit = sc->sc_smax; 426 else 427 limit = limits->sel_warnmax; 428 lmtemp_temp_write(sc, LM77_REG_THIGH_SET_POINT, limit, 0); 429 } 430 if (*props & PROP_WARNMIN) { 431 if (limits == NULL) /* Restore defaults */ 432 limit = sc->sc_smax; 433 else 434 limit = limits->sel_warnmin; 435 lmtemp_temp_write(sc, LM77_REG_TLOW_SET_POINT, limit, 0); 436 } 437 iic_release_bus(sc->sc_tag, I2C_F_POLL); 438 } 439 440 static uint32_t 441 lmtemp_decode_lm75(const uint8_t *buf, int degc) 442 { 443 int temp; 444 uint32_t val; 445 446 /* 447 * LM75 temps are the most-significant 9 bits of a 16-bit reg. 448 * sign-extend the MSB and add in the 0.5 from the LSB 449 */ 450 temp = (int8_t) buf[0]; 451 temp = (temp << 1) + ((buf[1] >> 7) & 0x1); 452 453 /* Temp is given in 1/2 deg. C, we convert to C or uK. */ 454 if (degc) 455 val = temp / 2; 456 else 457 val = temp * 500000 + 273150000; 458 459 return val; 460 } 461 462 static uint32_t 463 lmtemp_decode_ds75(const uint8_t *buf, int degc) 464 { 465 int temp; 466 467 /* 468 * Sign-extend the MSB byte, and add in the fractions of a 469 * degree contained in the LSB (precision 1/16th DegC). 470 */ 471 temp = (int8_t)buf[0]; 472 temp = (temp << 4) | ((buf[1] >> 4) & 0xf); 473 474 /* 475 * Conversion to C or uK is simple. 476 */ 477 if (degc) 478 return temp / 16; 479 else 480 return (temp * 62500 + 273150000); 481 } 482 483 static uint32_t 484 lmtemp_decode_lm77(const uint8_t *buf, int degc) 485 { 486 int temp; 487 uint32_t val; 488 489 /* 490 * Describe each bits of temperature registers on LM77. 491 * D15 - D12: Sign 492 * D11 - D3 : Bit8(MSB) - Bit0 493 */ 494 temp = (int8_t)buf[0]; 495 temp = (temp << 5) | ((buf[1] >> 3) & 0x1f); 496 497 /* Temp is given in 1/2 deg. C, we convert to C or uK. */ 498 if (degc) 499 val = temp / 2; 500 else 501 val = temp * 500000 + 273150000; 502 503 return val; 504 } 505 506 static void lmtemp_encode_lm75(const uint32_t val, uint8_t *buf, int degc) 507 { 508 int temp; 509 510 /* Convert from C or uK to register format */ 511 if (degc) 512 temp = val * 2; 513 else 514 temp = (val - 273150000) / 500000; 515 buf[0] = (temp >> 1) & 0xff; 516 buf[1] = (temp & 1) << 7; 517 } 518 519 static void lmtemp_encode_ds75(const uint32_t val, uint8_t *buf, int degc) 520 { 521 int temp; 522 523 /* Convert from C or uK to register format */ 524 if (degc) 525 temp = val * 16; 526 else 527 temp = (val - 273150000) / 62500; 528 buf[0] = (temp >> 4) & 0xff; 529 buf[1] = (temp & 0xf) << 4; 530 } 531 532 static void lmtemp_encode_lm77(const uint32_t val, uint8_t *buf, int degc) 533 { 534 int temp; 535 536 /* Convert from C or uK to register format */ 537 if (degc) 538 temp = val * 2; 539 else 540 temp = (val - 273150000) / 500000; 541 buf[0] = (temp >> 5) & 0xff; 542 buf[1] = (temp & 0x1f) << 3; 543 } 544 545 static void 546 lmtemp_setup_sysctl(struct lmtemp_softc *sc) 547 { 548 const struct sysctlnode *me = NULL, *node = NULL; 549 550 sysctl_createv(NULL, 0, NULL, &me, 551 CTLFLAG_READWRITE, 552 CTLTYPE_NODE, device_xname(sc->sc_dev), NULL, 553 NULL, 0, NULL, 0, 554 CTL_MACHDEP, CTL_CREATE, CTL_EOL); 555 556 sysctl_createv(NULL, 0, NULL, &node, 557 CTLFLAG_READWRITE | CTLFLAG_OWNDESC, 558 CTLTYPE_INT, "temp", "Threshold temperature", 559 sysctl_lm75_temp, 1, (void *)sc, 0, 560 CTL_MACHDEP, me->sysctl_num, CTL_CREATE, CTL_EOL); 561 } 562 563 static int 564 sysctl_lm75_temp(SYSCTLFN_ARGS) 565 { 566 struct sysctlnode node = *rnode; 567 struct lmtemp_softc *sc = node.sysctl_data; 568 int temp; 569 570 if (newp) { 571 572 /* we're asked to write */ 573 node.sysctl_data = &sc->sc_tmax; 574 if (sysctl_lookup(SYSCTLFN_CALL(&node)) == 0) { 575 576 temp = *(int *)node.sysctl_data; 577 sc->sc_tmax = temp; 578 iic_acquire_bus(sc->sc_tag, I2C_F_POLL); 579 lmtemp_temp_write(sc, LM75_REG_THYST_SET_POINT, 580 sc->sc_tmax - 5, 1); 581 lmtemp_temp_write(sc, LM75_REG_TOS_SET_POINT, 582 sc->sc_tmax, 1); 583 iic_release_bus(sc->sc_tag, I2C_F_POLL); 584 585 /* Synchronise envsys - calls lmtemp_getlim_lm75() */ 586 sysmon_envsys_update_limits(sc->sc_sme, &sc->sc_sensor); 587 return 0; 588 } 589 return EINVAL; 590 } else { 591 592 node.sysctl_data = &sc->sc_tmax; 593 node.sysctl_size = 4; 594 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 595 } 596 597 return 0; 598 } 599 600 SYSCTL_SETUP(sysctl_lmtemp_setup, "sysctl lmtemp subtree setup") 601 { 602 603 sysctl_createv(NULL, 0, NULL, NULL, 604 CTLFLAG_PERMANENT, 605 CTLTYPE_NODE, "machdep", NULL, 606 NULL, 0, NULL, 0, 607 CTL_MACHDEP, CTL_EOL); 608 } 609 610 611
Indexes created Thu Oct 02 10:09:58 GMT 2025