1 Kernel driver ltc4151 1 Kernel driver ltc4151
2 ===================== 2 =====================
3 3
4 Supported chips: 4 Supported chips:
5 5
6 * Linear Technology LTC4151 6 * Linear Technology LTC4151
7 7
8 Prefix: 'ltc4151' 8 Prefix: 'ltc4151'
9 9
10 Addresses scanned: - 10 Addresses scanned: -
11 11
12 Datasheet: 12 Datasheet:
13 13
14 http://www.linear.com/docs/Datasheet/4 14 http://www.linear.com/docs/Datasheet/4151fc.pdf
15 15
16 Author: Per Dalen <per.dalen@appeartv.com> 16 Author: Per Dalen <per.dalen@appeartv.com>
17 17
18 18
19 Description 19 Description
20 ----------- 20 -----------
21 21
22 The LTC4151 is a High Voltage I2C Current and 22 The LTC4151 is a High Voltage I2C Current and Voltage Monitor.
23 23
24 24
25 Usage Notes 25 Usage Notes
26 ----------- 26 -----------
27 27
28 This driver does not probe for LTC4151 devices 28 This driver does not probe for LTC4151 devices, since there is no register
29 which can be safely used to identify the chip. 29 which can be safely used to identify the chip. You will have to instantiate
30 the devices explicitly. 30 the devices explicitly.
31 31
32 Example: the following will load the driver fo 32 Example: the following will load the driver for an LTC4151 at address 0x6f
33 on I2C bus #0:: 33 on I2C bus #0::
34 34
35 # modprobe ltc4151 35 # modprobe ltc4151
36 # echo ltc4151 0x6f > /sys/bus/i2c/dev 36 # echo ltc4151 0x6f > /sys/bus/i2c/devices/i2c-0/new_device
37 37
38 38
39 Sysfs entries 39 Sysfs entries
40 ------------- 40 -------------
41 41
42 Voltage readings provided by this driver are r 42 Voltage readings provided by this driver are reported as obtained from the ADIN
43 and VIN registers. 43 and VIN registers.
44 44
45 Current reading provided by this driver is rep 45 Current reading provided by this driver is reported as obtained from the Current
46 Sense register. The reported value assumes tha 46 Sense register. The reported value assumes that a 1 mOhm sense resistor is
47 installed. 47 installed.
48 48
49 ======================= ================== 49 ======================= ==================
50 in1_input VDIN voltage (mV) 50 in1_input VDIN voltage (mV)
51 51
52 in2_input ADIN voltage (mV) 52 in2_input ADIN voltage (mV)
53 53
54 curr1_input SENSE current (mA) 54 curr1_input SENSE current (mA)
55 ======================= ================== 55 ======================= ==================
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