1Kernel driver adm1275
2=====================
3
4Supported chips:
5  * Analog Devices ADM1275
6    Prefix: 'adm1275'
7    Addresses scanned: -
8    Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1275.pdf
9  * Analog Devices ADM1276
10    Prefix: 'adm1276'
11    Addresses scanned: -
12    Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1276.pdf
13
14Author: Guenter Roeck <guenter.roeck@ericsson.com>
15
16
17Description
18-----------
19
20This driver supports hardware montoring for Analog Devices ADM1275 and ADM1276
21Hot-Swap Controller and Digital Power Monitor.
22
23ADM1275 and ADM1276 are hot-swap controllers that allow a circuit board to be
24removed from or inserted into a live backplane. They also feature current and
25voltage readback via an integrated 12-bit analog-to-digital converter (ADC),
26accessed using a PMBus interface.
27
28The driver is a client driver to the core PMBus driver. Please see
29Documentation/hwmon/pmbus for details on PMBus client drivers.
30
31
32Usage Notes
33-----------
34
35This driver does not auto-detect devices. You will have to instantiate the
36devices explicitly. Please see Documentation/i2c/instantiating-devices for
37details.
38
39
40Platform data support
41---------------------
42
43The driver supports standard PMBus driver platform data. Please see
44Documentation/hwmon/pmbus for details.
45
46
47Sysfs entries
48-------------
49
50The following attributes are supported. Limits are read-write, history reset
51attributes are write-only, all other attributes are read-only.
52
53in1_label		"vin1" or "vout1" depending on chip variant and
54			configuration.
55in1_input		Measured voltage.
56in1_min			Minumum Voltage.
57in1_max			Maximum voltage.
58in1_min_alarm		Voltage low alarm.
59in1_max_alarm		Voltage high alarm.
60in1_highest		Historical maximum voltage.
61in1_reset_history	Write any value to reset history.
62
63curr1_label		"iout1"
64curr1_input		Measured current.
65curr1_max		Maximum current.
66curr1_max_alarm		Current high alarm.
67curr1_lcrit		Critical minimum current. Depending on the chip
68			configuration, either curr1_lcrit or curr1_crit is
69			supported, but not both.
70curr1_lcrit_alarm	Critical current low alarm.
71curr1_crit		Critical maximum current. Depending on the chip
72			configuration, either curr1_lcrit or curr1_crit is
73			supported, but not both.
74curr1_crit_alarm	Critical current high alarm.
75curr1_highest		Historical maximum current.
76curr1_reset_history	Write any value to reset history.
77