Documentation/hwmon/pc87360.rst

22 -----------------
27     - 0: None
28     - **1**: Forcibly enable internal voltage and temperature channels,
30     - 2: Forcibly enable all voltage and temperature channels, except in9
31     - 3: Forcibly enable all voltage and temperature channels, including in9
42 -----------
56   PC87360     -       2       2       -       0xE1
57   PC87363     -       2       2       -       0xE8
58   PC87364     -       3       3       -       0xE4
60   PC87366     11      3       3       3-4     0xE9
67 --------------
73 Fan readings are affected by a programmable clock divider, giving the
74 readings more range or accuracy. Usually, users have to learn how it works,
75 but this driver implements dynamic clock divider selection, so you don't
78 For reference, here are a few values about clock dividers:
81 		slowest         accuracy        highest
93  * slowest measurable speed: clock/(255*divider)
94  * accuracy around 3000 RPM: 3000^2/clock
95  * highest accurate speed: sqrt(clock*100)
97 The clock speed for the PC87360 family is 480 kHz. I arbitrarily chose 100
98 RPM as the lowest acceptable accuracy.
102 Note that not all RPM values can be represented, even when the best clock
109 -----------
115 non-zero, can stop the fan, which may cause irreversible damage to your
124 ----------------------
138 voltages, and converted into temperatures in user-space.
150 ------------------
168 The driver will default to VRM 9.0, but this can be changed from user-space.
169 The chipsets can handle two sets of VID inputs (on dual-CPU systems), but
175 ---------------
182 a once-only alarm triggers, it may take 2 seconds for it to show, and 2
194 -----------