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),
47 all of the above. There is even 8k bytes of EEPROM memory on chip.
50 sensor inputs and one internal sensor. Each sensor has a high and low
52 generated. The interrupts can be masked. In addition, there are over-temp
61 by 1, 2, 4 or 8. Not all RPM values can accurately be represented, so some
68 measurements. Several inputs have integrated attenuators so they can measure
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
71 for SCSI terminator power. The remaining inputs are not scaled and have
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.
82 The ADM1026 measures continuously. Analog inputs are measured about 4
84 divisor. It can take as long as 1.5 seconds to measure all fan speeds.
87 temperature sensor inputs. Both the PWM output and the DAC output can be