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authorper.dalen@appeartv.com <per.dalen@appeartv.com>2011-03-03 14:13:21 -0500
committerGuenter Roeck <guenter.roeck@ericsson.com>2011-03-15 01:39:11 -0400
commitde7790155f745d30d58ed131ed112b8735413ab7 (patch)
tree884ecf5816d1d9279ad2e0e0864f18a693c8a3a6 /Documentation/hwmon
parent9f6ad1ce6484a92ef864e00611a8ef3daf9c986d (diff)
hwmon: Add support for LTC4151
LTC4151 is High Voltage I2C Current and Voltage Monitor from Linear Technology. Signed-off-by: Per Dalen <per.dalen@appeartv.com> Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
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1Kernel driver ltc4151
2=====================
3
4Supported chips:
5 * Linear Technology LTC4151
6 Prefix: 'ltc4151'
7 Addresses scanned: -
8 Datasheet:
9 http://www.linear.com/docs/Datasheet/4151fc.pdf
10
11Author: Per Dalen <per.dalen@appeartv.com>
12
13
14Description
15-----------
16
17The LTC4151 is a High Voltage I2C Current and Voltage Monitor.
18
19
20Usage Notes
21-----------
22
23This driver does not probe for LTC4151 devices, since there is no register
24which can be safely used to identify the chip. You will have to instantiate
25the devices explicitly.
26
27Example: the following will load the driver for an LTC4151 at address 0x6f
28on I2C bus #0:
29# modprobe ltc4151
30# echo ltc4151 0x6f > /sys/bus/i2c/devices/i2c-0/new_device
31
32
33Sysfs entries
34-------------
35
36Voltage readings provided by this driver are reported as obtained from the ADIN
37and VIN registers.
38
39Current reading provided by this driver is reported as obtained from the Current
40Sense register. The reported value assumes that a 1 mOhm sense resistor is
41installed.
42
43in1_input VDIN voltage (mV)
44
45in2_input ADIN voltage (mV)
46
47curr1_input SENSE current (mA)