2 * acerhdf - A driver which monitors the temperature
3 * of the aspire one netbook, turns on/off the fan
4 * as soon as the upper/lower threshold is reached.
6 * (C) 2009 - Peter Feuerer peter (a) piie.net
8 * 2009 Borislav Petkov bp (a) alien8.de
10 * Inspired by and many thanks to:
11 * o acerfand - Rachel Greenham
12 * o acer_ec.pl - Michael Kurz michi.kurz (at) googlemail.com
13 * - Petr Tomasek tomasek (#) etf,cuni,cz
14 * - Carlos Corbacho cathectic (at) gmail.com
15 * o lkml - Matthew Garrett
19 * This program is free software; you can redistribute it and/or modify
20 * it under the terms of the GNU General Public License as published by
21 * the Free Software Foundation; either version 2 of the License, or
22 * (at your option) any later version.
24 * This program is distributed in the hope that it will be useful,
25 * but WITHOUT ANY WARRANTY; without even the implied warranty of
26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
27 * GNU General Public License for more details.
29 * You should have received a copy of the GNU General Public License
30 * along with this program; if not, write to the Free Software
31 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
34 #define pr_fmt(fmt) "acerhdf: " fmt
36 #include <linux/kernel.h>
37 #include <linux/module.h>
38 #include <linux/dmi.h>
39 #include <linux/acpi.h>
40 #include <linux/thermal.h>
41 #include <linux/platform_device.h>
44 * The driver is started with "kernel mode off" by default. That means, the BIOS
45 * is still in control of the fan. In this mode the driver allows to read the
46 * temperature of the cpu and a userspace tool may take over control of the fan.
47 * If the driver is switched to "kernel mode" (e.g. via module parameter) the
48 * driver is in full control of the fan. If you want the module to be started in
49 * kernel mode by default, define the following:
51 #undef START_IN_KERNEL_MODE
53 #define DRV_VER "0.5.26"
56 * According to the Atom N270 datasheet,
57 * (http://download.intel.com/design/processor/datashts/320032.pdf) the
58 * CPU's optimal operating limits denoted in junction temperature as
59 * measured by the on-die thermal monitor are within 0 <= Tj <= 90. So,
60 * assume 89°C is critical temperature.
62 #define ACERHDF_TEMP_CRIT 89000
63 #define ACERHDF_FAN_OFF 0
64 #define ACERHDF_FAN_AUTO 1
67 * No matter what value the user puts into the fanon variable, turn on the fan
68 * at 80 degree Celsius to prevent hardware damage
70 #define ACERHDF_MAX_FANON 80000
73 * Maximum interval between two temperature checks is 15 seconds, as the die
74 * can get hot really fast under heavy load (plus we shouldn't forget about
75 * possible impact of _external_ aggressive sources such as heaters, sun etc.)
77 #define ACERHDF_MAX_INTERVAL 15
79 #ifdef START_IN_KERNEL_MODE
80 static int kernelmode = 1;
82 static int kernelmode;
85 static unsigned int interval = 10;
86 static unsigned int fanon = 60000;
87 static unsigned int fanoff = 53000;
88 static unsigned int verbose;
89 static unsigned int fanstate = ACERHDF_FAN_AUTO;
90 static char force_bios[16];
91 static char force_product[16];
92 static unsigned int prev_interval;
93 static struct thermal_zone_device *thz_dev;
94 static struct thermal_cooling_device *cl_dev;
95 static struct platform_device *acerhdf_dev;
97 module_param(kernelmode, uint, 0);
98 MODULE_PARM_DESC(kernelmode, "Kernel mode fan control on / off");
99 module_param(interval, uint, 0600);
100 MODULE_PARM_DESC(interval, "Polling interval of temperature check");
101 module_param(fanon, uint, 0600);
102 MODULE_PARM_DESC(fanon, "Turn the fan on above this temperature");
103 module_param(fanoff, uint, 0600);
104 MODULE_PARM_DESC(fanoff, "Turn the fan off below this temperature");
105 module_param(verbose, uint, 0600);
106 MODULE_PARM_DESC(verbose, "Enable verbose dmesg output");
107 module_param_string(force_bios, force_bios, 16, 0);
108 MODULE_PARM_DESC(force_bios, "Force BIOS version and omit BIOS check");
109 module_param_string(force_product, force_product, 16, 0);
110 MODULE_PARM_DESC(force_product, "Force BIOS product and omit BIOS check");
113 * cmd_off: to switch the fan completely off and check if the fan is off
114 * cmd_auto: to set the BIOS in control of the fan. The BIOS regulates then
115 * the fan speed depending on the temperature
123 struct bios_settings_t {
127 unsigned char fanreg;
128 unsigned char tempreg;
132 /* Register addresses and values for different BIOS versions */
133 static const struct bios_settings_t bios_tbl[] = {
135 {"Acer", "AOA110", "v0.3109", 0x55, 0x58, {0x1f, 0x00} },
136 {"Acer", "AOA110", "v0.3114", 0x55, 0x58, {0x1f, 0x00} },
137 {"Acer", "AOA110", "v0.3301", 0x55, 0x58, {0xaf, 0x00} },
138 {"Acer", "AOA110", "v0.3304", 0x55, 0x58, {0xaf, 0x00} },
139 {"Acer", "AOA110", "v0.3305", 0x55, 0x58, {0xaf, 0x00} },
140 {"Acer", "AOA110", "v0.3307", 0x55, 0x58, {0xaf, 0x00} },
141 {"Acer", "AOA110", "v0.3308", 0x55, 0x58, {0x21, 0x00} },
142 {"Acer", "AOA110", "v0.3309", 0x55, 0x58, {0x21, 0x00} },
143 {"Acer", "AOA110", "v0.3310", 0x55, 0x58, {0x21, 0x00} },
145 {"Acer", "AOA150", "v0.3114", 0x55, 0x58, {0x1f, 0x00} },
146 {"Acer", "AOA150", "v0.3301", 0x55, 0x58, {0x20, 0x00} },
147 {"Acer", "AOA150", "v0.3304", 0x55, 0x58, {0x20, 0x00} },
148 {"Acer", "AOA150", "v0.3305", 0x55, 0x58, {0x20, 0x00} },
149 {"Acer", "AOA150", "v0.3307", 0x55, 0x58, {0x20, 0x00} },
150 {"Acer", "AOA150", "v0.3308", 0x55, 0x58, {0x20, 0x00} },
151 {"Acer", "AOA150", "v0.3309", 0x55, 0x58, {0x20, 0x00} },
152 {"Acer", "AOA150", "v0.3310", 0x55, 0x58, {0x20, 0x00} },
154 {"Acer", "LT-10Q", "v0.3310", 0x55, 0x58, {0x20, 0x00} },
156 {"Acer", "Aspire 1410", "v0.3108", 0x55, 0x58, {0x9e, 0x00} },
157 {"Acer", "Aspire 1410", "v0.3113", 0x55, 0x58, {0x9e, 0x00} },
158 {"Acer", "Aspire 1410", "v0.3115", 0x55, 0x58, {0x9e, 0x00} },
159 {"Acer", "Aspire 1410", "v0.3117", 0x55, 0x58, {0x9e, 0x00} },
160 {"Acer", "Aspire 1410", "v0.3119", 0x55, 0x58, {0x9e, 0x00} },
161 {"Acer", "Aspire 1410", "v0.3120", 0x55, 0x58, {0x9e, 0x00} },
162 {"Acer", "Aspire 1410", "v1.3204", 0x55, 0x58, {0x9e, 0x00} },
163 {"Acer", "Aspire 1410", "v1.3303", 0x55, 0x58, {0x9e, 0x00} },
164 {"Acer", "Aspire 1410", "v1.3308", 0x55, 0x58, {0x9e, 0x00} },
165 {"Acer", "Aspire 1410", "v1.3310", 0x55, 0x58, {0x9e, 0x00} },
166 {"Acer", "Aspire 1410", "v1.3314", 0x55, 0x58, {0x9e, 0x00} },
168 {"Acer", "Aspire 1810TZ", "v0.3108", 0x55, 0x58, {0x9e, 0x00} },
169 {"Acer", "Aspire 1810T", "v0.3108", 0x55, 0x58, {0x9e, 0x00} },
170 {"Acer", "Aspire 1810TZ", "v0.3113", 0x55, 0x58, {0x9e, 0x00} },
171 {"Acer", "Aspire 1810T", "v0.3113", 0x55, 0x58, {0x9e, 0x00} },
172 {"Acer", "Aspire 1810TZ", "v0.3115", 0x55, 0x58, {0x9e, 0x00} },
173 {"Acer", "Aspire 1810T", "v0.3115", 0x55, 0x58, {0x9e, 0x00} },
174 {"Acer", "Aspire 1810TZ", "v0.3117", 0x55, 0x58, {0x9e, 0x00} },
175 {"Acer", "Aspire 1810T", "v0.3117", 0x55, 0x58, {0x9e, 0x00} },
176 {"Acer", "Aspire 1810TZ", "v0.3119", 0x55, 0x58, {0x9e, 0x00} },
177 {"Acer", "Aspire 1810T", "v0.3119", 0x55, 0x58, {0x9e, 0x00} },
178 {"Acer", "Aspire 1810TZ", "v0.3120", 0x55, 0x58, {0x9e, 0x00} },
179 {"Acer", "Aspire 1810T", "v0.3120", 0x55, 0x58, {0x9e, 0x00} },
180 {"Acer", "Aspire 1810TZ", "v1.3204", 0x55, 0x58, {0x9e, 0x00} },
181 {"Acer", "Aspire 1810T", "v1.3204", 0x55, 0x58, {0x9e, 0x00} },
182 {"Acer", "Aspire 1810TZ", "v1.3303", 0x55, 0x58, {0x9e, 0x00} },
183 {"Acer", "Aspire 1810T", "v1.3303", 0x55, 0x58, {0x9e, 0x00} },
184 {"Acer", "Aspire 1810TZ", "v1.3308", 0x55, 0x58, {0x9e, 0x00} },
185 {"Acer", "Aspire 1810T", "v1.3308", 0x55, 0x58, {0x9e, 0x00} },
186 {"Acer", "Aspire 1810TZ", "v1.3310", 0x55, 0x58, {0x9e, 0x00} },
187 {"Acer", "Aspire 1810T", "v1.3310", 0x55, 0x58, {0x9e, 0x00} },
188 {"Acer", "Aspire 1810TZ", "v1.3314", 0x55, 0x58, {0x9e, 0x00} },
189 {"Acer", "Aspire 1810T", "v1.3314", 0x55, 0x58, {0x9e, 0x00} },
191 {"Acer", "AO531h", "v0.3104", 0x55, 0x58, {0x20, 0x00} },
192 {"Acer", "AO531h", "v0.3201", 0x55, 0x58, {0x20, 0x00} },
193 {"Acer", "AO531h", "v0.3304", 0x55, 0x58, {0x20, 0x00} },
195 {"Acer", "AO751h", "V0.3212", 0x55, 0x58, {0x21, 0x00} },
197 {"Acer", "Aspire 1825PTZ", "V1.3118", 0x55, 0x58, {0x9e, 0x00} },
198 {"Acer", "Aspire 1825PTZ", "V1.3127", 0x55, 0x58, {0x9e, 0x00} },
199 /* Acer TravelMate 7730 */
200 {"Acer", "TravelMate 7730G", "v0.3509", 0x55, 0x58, {0xaf, 0x00} },
202 {"Gateway", "AOA110", "v0.3103", 0x55, 0x58, {0x21, 0x00} },
203 {"Gateway", "AOA150", "v0.3103", 0x55, 0x58, {0x20, 0x00} },
204 {"Gateway", "LT31", "v1.3103", 0x55, 0x58, {0x9e, 0x00} },
205 {"Gateway", "LT31", "v1.3201", 0x55, 0x58, {0x9e, 0x00} },
206 {"Gateway", "LT31", "v1.3302", 0x55, 0x58, {0x9e, 0x00} },
207 {"Gateway", "LT31", "v1.3303t", 0x55, 0x58, {0x9e, 0x00} },
209 {"Packard Bell", "DOA150", "v0.3104", 0x55, 0x58, {0x21, 0x00} },
210 {"Packard Bell", "DOA150", "v0.3105", 0x55, 0x58, {0x20, 0x00} },
211 {"Packard Bell", "AOA110", "v0.3105", 0x55, 0x58, {0x21, 0x00} },
212 {"Packard Bell", "AOA150", "v0.3105", 0x55, 0x58, {0x20, 0x00} },
213 {"Packard Bell", "ENBFT", "V1.3118", 0x55, 0x58, {0x9e, 0x00} },
214 {"Packard Bell", "ENBFT", "V1.3127", 0x55, 0x58, {0x9e, 0x00} },
215 {"Packard Bell", "DOTMU", "v1.3303", 0x55, 0x58, {0x9e, 0x00} },
216 {"Packard Bell", "DOTMU", "v0.3120", 0x55, 0x58, {0x9e, 0x00} },
217 {"Packard Bell", "DOTMU", "v0.3108", 0x55, 0x58, {0x9e, 0x00} },
218 {"Packard Bell", "DOTMU", "v0.3113", 0x55, 0x58, {0x9e, 0x00} },
219 {"Packard Bell", "DOTMU", "v0.3115", 0x55, 0x58, {0x9e, 0x00} },
220 {"Packard Bell", "DOTMU", "v0.3117", 0x55, 0x58, {0x9e, 0x00} },
221 {"Packard Bell", "DOTMU", "v0.3119", 0x55, 0x58, {0x9e, 0x00} },
222 {"Packard Bell", "DOTMU", "v1.3204", 0x55, 0x58, {0x9e, 0x00} },
223 {"Packard Bell", "DOTMA", "v1.3201", 0x55, 0x58, {0x9e, 0x00} },
224 {"Packard Bell", "DOTMA", "v1.3302", 0x55, 0x58, {0x9e, 0x00} },
225 {"Packard Bell", "DOTMA", "v1.3303t", 0x55, 0x58, {0x9e, 0x00} },
226 {"Packard Bell", "DOTVR46", "v1.3308", 0x55, 0x58, {0x9e, 0x00} },
227 /* pewpew-terminator */
228 {"", "", "", 0, 0, {0, 0} }
231 static const struct bios_settings_t *bios_cfg __read_mostly;
233 static int acerhdf_get_temp(int *temp)
237 if (ec_read(bios_cfg->tempreg, &read_temp))
240 *temp = read_temp * 1000;
245 static int acerhdf_get_fanstate(int *state)
249 if (ec_read(bios_cfg->fanreg, &fan))
252 if (fan != bios_cfg->cmd.cmd_off)
253 *state = ACERHDF_FAN_AUTO;
255 *state = ACERHDF_FAN_OFF;
260 static void acerhdf_change_fanstate(int state)
265 pr_notice("fan %s\n", state == ACERHDF_FAN_OFF ? "OFF" : "ON");
267 if ((state != ACERHDF_FAN_OFF) && (state != ACERHDF_FAN_AUTO)) {
268 pr_err("invalid fan state %d requested, setting to auto!\n",
270 state = ACERHDF_FAN_AUTO;
273 cmd = (state == ACERHDF_FAN_OFF) ? bios_cfg->cmd.cmd_off
274 : bios_cfg->cmd.cmd_auto;
277 ec_write(bios_cfg->fanreg, cmd);
280 static void acerhdf_check_param(struct thermal_zone_device *thermal)
282 if (fanon > ACERHDF_MAX_FANON) {
283 pr_err("fanon temperature too high, set to %d\n",
285 fanon = ACERHDF_MAX_FANON;
288 if (kernelmode && prev_interval != interval) {
289 if (interval > ACERHDF_MAX_INTERVAL) {
290 pr_err("interval too high, set to %d\n",
291 ACERHDF_MAX_INTERVAL);
292 interval = ACERHDF_MAX_INTERVAL;
295 pr_notice("interval changed to: %d\n", interval);
296 thermal->polling_delay = interval*1000;
297 prev_interval = interval;
302 * This is the thermal zone callback which does the delayed polling of the fan
303 * state. We do check /sysfs-originating settings here in acerhdf_check_param()
304 * as late as the polling interval is since we can't do that in the respective
305 * accessors of the module parameters.
307 static int acerhdf_get_ec_temp(struct thermal_zone_device *thermal,
312 acerhdf_check_param(thermal);
314 err = acerhdf_get_temp(&temp);
319 pr_notice("temp %d\n", temp);
325 static int acerhdf_bind(struct thermal_zone_device *thermal,
326 struct thermal_cooling_device *cdev)
328 /* if the cooling device is the one from acerhdf bind it */
332 if (thermal_zone_bind_cooling_device(thermal, 0, cdev)) {
333 pr_err("error binding cooling dev\n");
339 static int acerhdf_unbind(struct thermal_zone_device *thermal,
340 struct thermal_cooling_device *cdev)
345 if (thermal_zone_unbind_cooling_device(thermal, 0, cdev)) {
346 pr_err("error unbinding cooling dev\n");
352 static inline void acerhdf_revert_to_bios_mode(void)
354 acerhdf_change_fanstate(ACERHDF_FAN_AUTO);
357 thz_dev->polling_delay = 0;
358 pr_notice("kernel mode fan control OFF\n");
360 static inline void acerhdf_enable_kernelmode(void)
364 thz_dev->polling_delay = interval*1000;
365 thermal_zone_device_update(thz_dev);
366 pr_notice("kernel mode fan control ON\n");
369 static int acerhdf_get_mode(struct thermal_zone_device *thermal,
370 enum thermal_device_mode *mode)
373 pr_notice("kernel mode fan control %d\n", kernelmode);
375 *mode = (kernelmode) ? THERMAL_DEVICE_ENABLED
376 : THERMAL_DEVICE_DISABLED;
382 * set operation mode;
383 * enabled: the thermal layer of the kernel takes care about
384 * the temperature and the fan.
385 * disabled: the BIOS takes control of the fan.
387 static int acerhdf_set_mode(struct thermal_zone_device *thermal,
388 enum thermal_device_mode mode)
390 if (mode == THERMAL_DEVICE_DISABLED && kernelmode)
391 acerhdf_revert_to_bios_mode();
392 else if (mode == THERMAL_DEVICE_ENABLED && !kernelmode)
393 acerhdf_enable_kernelmode();
398 static int acerhdf_get_trip_type(struct thermal_zone_device *thermal, int trip,
399 enum thermal_trip_type *type)
402 *type = THERMAL_TRIP_ACTIVE;
407 static int acerhdf_get_trip_temp(struct thermal_zone_device *thermal, int trip,
416 static int acerhdf_get_crit_temp(struct thermal_zone_device *thermal,
417 unsigned long *temperature)
419 *temperature = ACERHDF_TEMP_CRIT;
423 /* bind callback functions to thermalzone */
424 static struct thermal_zone_device_ops acerhdf_dev_ops = {
425 .bind = acerhdf_bind,
426 .unbind = acerhdf_unbind,
427 .get_temp = acerhdf_get_ec_temp,
428 .get_mode = acerhdf_get_mode,
429 .set_mode = acerhdf_set_mode,
430 .get_trip_type = acerhdf_get_trip_type,
431 .get_trip_temp = acerhdf_get_trip_temp,
432 .get_crit_temp = acerhdf_get_crit_temp,
437 * cooling device callback functions
438 * get maximal fan cooling state
440 static int acerhdf_get_max_state(struct thermal_cooling_device *cdev,
441 unsigned long *state)
448 static int acerhdf_get_cur_state(struct thermal_cooling_device *cdev,
449 unsigned long *state)
453 err = acerhdf_get_fanstate(&tmp);
457 *state = (tmp == ACERHDF_FAN_AUTO) ? 1 : 0;
461 /* change current fan state - is overwritten when running in kernel mode */
462 static int acerhdf_set_cur_state(struct thermal_cooling_device *cdev,
465 int cur_temp, cur_state, err = 0;
470 err = acerhdf_get_temp(&cur_temp);
472 pr_err("error reading temperature, hand off control to BIOS\n");
476 err = acerhdf_get_fanstate(&cur_state);
478 pr_err("error reading fan state, hand off control to BIOS\n");
483 /* turn fan off only if below fanoff temperature */
484 if ((cur_state == ACERHDF_FAN_AUTO) &&
486 acerhdf_change_fanstate(ACERHDF_FAN_OFF);
488 if (cur_state == ACERHDF_FAN_OFF)
489 acerhdf_change_fanstate(ACERHDF_FAN_AUTO);
494 acerhdf_revert_to_bios_mode();
498 /* bind fan callbacks to fan device */
499 static struct thermal_cooling_device_ops acerhdf_cooling_ops = {
500 .get_max_state = acerhdf_get_max_state,
501 .get_cur_state = acerhdf_get_cur_state,
502 .set_cur_state = acerhdf_set_cur_state,
505 /* suspend / resume functionality */
506 static int acerhdf_suspend(struct device *dev)
509 acerhdf_change_fanstate(ACERHDF_FAN_AUTO);
512 pr_notice("going suspend\n");
517 static int __devinit acerhdf_probe(struct platform_device *device)
522 static int acerhdf_remove(struct platform_device *device)
527 static const struct dev_pm_ops acerhdf_pm_ops = {
528 .suspend = acerhdf_suspend,
529 .freeze = acerhdf_suspend,
532 static struct platform_driver acerhdf_driver = {
535 .owner = THIS_MODULE,
536 .pm = &acerhdf_pm_ops,
538 .probe = acerhdf_probe,
539 .remove = acerhdf_remove,
542 /* checks if str begins with start */
543 static int str_starts_with(const char *str, const char *start)
545 unsigned long str_len = 0, start_len = 0;
547 str_len = strlen(str);
548 start_len = strlen(start);
550 if (str_len >= start_len &&
551 !strncmp(str, start, start_len))
558 static int acerhdf_check_hardware(void)
560 char const *vendor, *version, *product;
561 const struct bios_settings_t *bt = NULL;
564 vendor = dmi_get_system_info(DMI_SYS_VENDOR);
565 version = dmi_get_system_info(DMI_BIOS_VERSION);
566 product = dmi_get_system_info(DMI_PRODUCT_NAME);
568 if (!vendor || !version || !product) {
569 pr_err("error getting hardware information\n");
573 pr_info("Acer Aspire One Fan driver, v.%s\n", DRV_VER);
576 version = force_bios;
577 pr_info("forcing BIOS version: %s\n", version);
581 if (force_product[0]) {
582 product = force_product;
583 pr_info("forcing BIOS product: %s\n", product);
588 pr_info("BIOS info: %s %s, product: %s\n",
589 vendor, version, product);
591 /* search BIOS version and vendor in BIOS settings table */
592 for (bt = bios_tbl; bt->vendor[0]; bt++) {
594 * check if actual hardware BIOS vendor, product and version
595 * IDs start with the strings of BIOS table entry
597 if (str_starts_with(vendor, bt->vendor) &&
598 str_starts_with(product, bt->product) &&
599 str_starts_with(version, bt->version)) {
606 pr_err("unknown (unsupported) BIOS version %s/%s/%s, please report, aborting!\n",
607 vendor, product, version);
612 * if started with kernel mode off, prevent the kernel from switching
616 pr_notice("Fan control off, to enable do:\n");
617 pr_notice("echo -n \"enabled\" > /sys/class/thermal/thermal_zone0/mode\n");
623 static int acerhdf_register_platform(void)
627 err = platform_driver_register(&acerhdf_driver);
631 acerhdf_dev = platform_device_alloc("acerhdf", -1);
634 goto err_device_alloc;
636 err = platform_device_add(acerhdf_dev);
643 platform_device_put(acerhdf_dev);
645 platform_driver_unregister(&acerhdf_driver);
649 static void acerhdf_unregister_platform(void)
651 platform_device_unregister(acerhdf_dev);
652 platform_driver_unregister(&acerhdf_driver);
655 static int acerhdf_register_thermal(void)
657 cl_dev = thermal_cooling_device_register("acerhdf-fan", NULL,
658 &acerhdf_cooling_ops);
663 thz_dev = thermal_zone_device_register("acerhdf", 1, NULL,
664 &acerhdf_dev_ops, 0, 0, 0,
665 (kernelmode) ? interval*1000 : 0);
672 static void acerhdf_unregister_thermal(void)
675 thermal_cooling_device_unregister(cl_dev);
680 thermal_zone_device_unregister(thz_dev);
685 static int __init acerhdf_init(void)
689 err = acerhdf_check_hardware();
693 err = acerhdf_register_platform();
697 err = acerhdf_register_thermal();
704 acerhdf_unregister_thermal();
705 acerhdf_unregister_platform();
711 static void __exit acerhdf_exit(void)
713 acerhdf_change_fanstate(ACERHDF_FAN_AUTO);
714 acerhdf_unregister_thermal();
715 acerhdf_unregister_platform();
718 MODULE_LICENSE("GPL");
719 MODULE_AUTHOR("Peter Feuerer");
720 MODULE_DESCRIPTION("Aspire One temperature and fan driver");
721 MODULE_ALIAS("dmi:*:*Acer*:pnAOA*:");
722 MODULE_ALIAS("dmi:*:*Acer*:pnAO751h*:");
723 MODULE_ALIAS("dmi:*:*Acer*:pnAspire*1410*:");
724 MODULE_ALIAS("dmi:*:*Acer*:pnAspire*1810*:");
725 MODULE_ALIAS("dmi:*:*Acer*:pnAspire*1825PTZ:");
726 MODULE_ALIAS("dmi:*:*Acer*:pnAO531*:");
727 MODULE_ALIAS("dmi:*:*Acer*:TravelMate*7730G:");
728 MODULE_ALIAS("dmi:*:*Gateway*:pnAOA*:");
729 MODULE_ALIAS("dmi:*:*Gateway*:pnLT31*:");
730 MODULE_ALIAS("dmi:*:*Packard*Bell*:pnAOA*:");
731 MODULE_ALIAS("dmi:*:*Packard*Bell*:pnDOA*:");
732 MODULE_ALIAS("dmi:*:*Packard*Bell*:pnDOTMU*:");
733 MODULE_ALIAS("dmi:*:*Packard*Bell*:pnENBFT*:");
734 MODULE_ALIAS("dmi:*:*Packard*Bell*:pnDOTMA*:");
735 MODULE_ALIAS("dmi:*:*Packard*Bell*:pnDOTVR46*:");
737 module_init(acerhdf_init);
738 module_exit(acerhdf_exit);