5 * Linear Technology LTC4245
7 Addresses scanned: 0x20-0x3f
9 http://www.linear.com/pc/downloadDocument.do?navId=H0,C1,C1003,C1006,C1140,P19392,D13517
11 Author: Ira W. Snyder <iws@ovro.caltech.edu>
17 The LTC4245 controller allows a board to be safely inserted and removed
18 from a live backplane in multiple supply systems such as CompactPCI and
25 This driver does not probe for LTC4245 devices, due to the fact that some
26 of the possible addresses are unfriendly to probing. You will have to
27 instantiate the devices explicitly.
29 Example: the following will load the driver for an LTC4245 at address 0x23
32 $ echo ltc4245 0x23 > /sys/bus/i2c/devices/i2c-1/new_device
38 The LTC4245 has built-in limits for over and under current warnings. This
39 makes it very likely that the reference circuit will be used.
41 This driver uses the values in the datasheet to change the register values
42 into the values specified in the sysfs-interface document. The current readings
43 rely on the sense resistors listed in Table 2: "Sense Resistor Values".
45 in1_input 12v input voltage (mV)
46 in2_input 5v input voltage (mV)
47 in3_input 3v input voltage (mV)
48 in4_input Vee (-12v) input voltage (mV)
50 in1_min_alarm 12v input undervoltage alarm
51 in2_min_alarm 5v input undervoltage alarm
52 in3_min_alarm 3v input undervoltage alarm
53 in4_min_alarm Vee (-12v) input undervoltage alarm
55 curr1_input 12v current (mA)
56 curr2_input 5v current (mA)
57 curr3_input 3v current (mA)
58 curr4_input Vee (-12v) current (mA)
60 curr1_max_alarm 12v overcurrent alarm
61 curr2_max_alarm 5v overcurrent alarm
62 curr3_max_alarm 3v overcurrent alarm
63 curr4_max_alarm Vee (-12v) overcurrent alarm
65 in5_input 12v output voltage (mV)
66 in6_input 5v output voltage (mV)
67 in7_input 3v output voltage (mV)
68 in8_input Vee (-12v) output voltage (mV)
70 in5_min_alarm 12v output undervoltage alarm
71 in6_min_alarm 5v output undervoltage alarm
72 in7_min_alarm 3v output undervoltage alarm
73 in8_min_alarm Vee (-12v) output undervoltage alarm
75 in9_input GPIO #1 voltage data
76 in10_input GPIO #2 voltage data
77 in11_input GPIO #3 voltage data
79 power1_input 12v power usage (mW)
80 power2_input 5v power usage (mW)
81 power3_input 3v power usage (mW)
82 power4_input Vee (-12v) power usage (mW)