Documentation/hwmon/w83791d.rst

10     Addresses scanned: I2C 0x2c - 0x2f
12     Datasheet: http://www.winbond-usa.com/products/winbond_products/pdfs/PCIC/W83791D_W83791Gb.pdf
22     - Frodo Looijaard <frodol@dds.nl>,
23     - Philip Edelbrock <phil@netroedge.com>,
24     - Mark Studebaker <mdsxyz123@yahoo.com>
28     - Shane Huang (Winbond),
29     - Rudolf Marek <r.marek@assembler.cz>
33     - Sven Anders <anders@anduras.de>
34     - Marc Hulsman <m.hulsman@tudelft.nl>
37 -----------------
62 -----------
70 parameter; this will put it into a more well-behaved state first.
81 An alarm is triggered if the voltage has crossed a programmable minimum
85 triggered if the rotation speed has dropped below a programmable limit. Fan
91 PWM 1-3 support Thermal Cruise mode, in which the PWMs are automatically
92 regulated to keep respectively temp 1-3 at a certain target temperature.
93 See below for the description of the sysfs-interface.
95 The w83791d has a global bit used to enable beeping from the speaker when an
101 This file is used for both legacy and new code.
103 The sysfs interface to the beep bitmask has migrated from the original legacy
105 `*_beep` files as described in `Documentation/hwmon/sysfs-interface.rst`.
107 A similar change has occurred for the bitmap corresponding to the alarms. The
108 original legacy method used a single sysfs alarms file containing a bitmap
110 (again following the pattern described in sysfs-interface).
114 the other. If you use the legacy bitmask method, your user-space code is
118 NOTE: All new code should be written to use the newer sysfs-interface
123 User mode code requesting values more often will receive cached values.
126 ----------
127 The sysfs-interface is documented in the 'sysfs-interface' file. Only
128 chip-specific options are documented here.
131 pwm[1-3]_enable		this file controls mode of fan/temperature control for
132 			fan 1-3. Fan/PWM 4-5 only support manual mode.
134 			    * 1 Manual mode
135 			    * 2 Thermal Cruise mode
136 			    * 3 Fan Speed Cruise mode (no further support)
138 temp[1-3]_target	defines the target temperature for Thermal Cruise mode.
142 temp[1-3]_tolerance	temperature tolerance for Thermal Cruise mode.
150 -----------------------------------
152 For legacy code using the alarms and beep_mask files:
162 in5 (-12VIN)   0x000200  0x000200
163 in6 (-5VIN)    0x000400  0x000400
179 global_enable  -         0x800000  (modified via beep_enable)