Documentation/hwmon/it87.rst

174     - Christophe Gauthron
175     - Jean Delvare <jdelvare@suse.de>
179 -----------------
192     misconfigured by BIOS - PWM values would be inverted. This option tries
209   Provided since there are reports that system-wide acpi_enfore_resources=lax
217 -------------------
219 All the chips supported by this driver are LPC Super-I/O chips, accessed
220 through the LPC bus (ISA-like I/O ports). The IT8712F additionally has an
228 -----------
237 include an 'environment controller' with 3 temperature sensors, 3 fan
238 rotation speed sensors, 8 voltage sensors, associated alarms, and chassis
247 is stored in the Super-I/O configuration space. Due to technical limitations,
258 IT8783E/F, and late IT8712F and IT8705F also have optional 16-bit tachometer
260 not compatible with the older chips and revisions. The 16-bit tachometer mode
271 IT8728F. It only supports 3 fans, 16-bit fan mode, and the full speed mode
275 to IT8728F. It only supports 16-bit fan mode. Both chips support up to 6 fans.
277 The IT8790E, IT8792E/IT8795E and IT87952E support up to 3 fans. 16-bit fan
280 The IT8732F supports a closed-loop mode for fan control, but this is not
288 16-bit tachometer counters aren't used, fan readings can be divided by
294 Voltage sensors (also known as IN sensors) report their values in volts. An
310 The driver handles this transparently so user-space doesn't have to care.
321 once-only alarms.
323 Out-of-limit readings can also result in beeping, if the chip is properly
333 startup, consult lm_sensors's /etc/sensors.conf. (4 = thermistor;
338 -----------------
341 "Smart Guardian" mode control handling is only implemented for older chips
349 read-only.
353 -------------------------------------------
379 -----------------------------
381 The driver supports temp[1-3]_offset sysfs attributes to adjust the reported
382 temperature for thermal diodes or diode-connected thermal transistors.