Documentation/hwmon/adm1026.rst

16 	- Philip Pokorny <ppokorny@penguincomputing.com> for Penguin Computing
17 	- Justin Thiessen <jthiessen@penguincomputing.com>
20 -----------------
23     List of GPIO pins (0-16) to program as inputs
26     List of GPIO pins (0-16) to program as outputs
29     List of GPIO pins (0-16) to program as inverted
32     List of GPIO pins (0-16) to program as normal/non-inverted
35     List of GPIO pins (0-7) to program as fan tachs
39 -----------
45 16 general purpose digital I/O lines, eight (8) fan speed sensors (8-bit),
52 generated. The interrupts can be masked. In addition, there are over-temp
54 be asserted. The current temperature and limits have a resolution of 1
59 corresponds to a minimum fan speed. If the limit is exceeded, an interrupt
62 rounding is done. With a divider of 8, the slowest measurable speed of a
69 higher voltages directly. 3.3V, 5V, 12V, -12V and battery voltage all have
70 dedicated inputs. There are several inputs scaled to 0-3V full-scale range
72 a 0-2.5V full-scale range. A 2.5V or 1.82V reference voltage is provided
77 have disappeared! Note that in the current implementation, all hardware
80 once-only alarms.
83 times a second. Fan speed measurement time depends on fan speed and
86 The ADM1026 has the ability to automatically control fan speed based on the
88 used to control fan speed. Usually only one of these two outputs will be
92 largest difference between current and tmin of the temperature sensors sets
94 controlling fan speed with the PWM and DAC outputs. The fan speed sensors