1Kernel driver ltc4215
2=====================
3
4Supported chips:
5  * Linear Technology LTC4215
6    Prefix: 'ltc4215'
7    Addresses scanned: 0x44
8    Datasheet:
9        http://www.linear.com/pc/downloadDocument.do?navId=H0,C1,C1003,C1006,C1163,P17572,D12697
10
11Author: Ira W. Snyder <iws@ovro.caltech.edu>
12
13
14Description
15-----------
16
17The LTC4215 controller allows a board to be safely inserted and removed
18from a live backplane.
19
20
21Usage Notes
22-----------
23
24This driver does not probe for LTC4215 devices, due to the fact that some
25of the possible addresses are unfriendly to probing. You will have to
26instantiate the devices explicitly.
27
28Example: the following will load the driver for an LTC4215 at address 0x44
29on I2C bus #0:
30$ modprobe ltc4215
31$ echo ltc4215 0x44 > /sys/bus/i2c/devices/i2c-0/new_device
32
33
34Sysfs entries
35-------------
36
37The LTC4215 has built-in limits for overvoltage, undervoltage, and
38undercurrent warnings. This makes it very likely that the reference
39circuit will be used.
40
41in1_input		input voltage
42in2_input		output voltage
43
44in1_min_alarm		input undervoltage alarm
45in1_max_alarm		input overvoltage alarm
46
47curr1_input		current
48curr1_max_alarm		overcurrent alarm
49
50power1_input		power usage
51power1_alarm		power bad alarm
52