60 lines
1.3 KiB
ReStructuredText
60 lines
1.3 KiB
ReStructuredText
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Kernel driver ltc4215
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=====================
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Supported chips:
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* Linear Technology LTC4215
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Prefix: 'ltc4215'
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Addresses scanned: 0x44
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Datasheet:
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http://www.linear.com/pc/downloadDocument.do?navId=H0,C1,C1003,C1006,C1163,P17572,D12697
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Author: Ira W. Snyder <iws@ovro.caltech.edu>
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Description
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-----------
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The LTC4215 controller allows a board to be safely inserted and removed
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from a live backplane.
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Usage Notes
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-----------
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This driver does not probe for LTC4215 devices, due to the fact that some
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of the possible addresses are unfriendly to probing. You will have to
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instantiate the devices explicitly.
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Example: the following will load the driver for an LTC4215 at address 0x44
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on I2C bus #0::
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$ modprobe ltc4215
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$ echo ltc4215 0x44 > /sys/bus/i2c/devices/i2c-0/new_device
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Sysfs entries
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-------------
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The LTC4215 has built-in limits for overvoltage, undervoltage, and
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undercurrent warnings. This makes it very likely that the reference
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circuit will be used.
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======================= =========================
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in1_input input voltage
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in2_input output voltage
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in1_min_alarm input undervoltage alarm
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in1_max_alarm input overvoltage alarm
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curr1_input current
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curr1_max_alarm overcurrent alarm
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power1_input power usage
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power1_alarm power bad alarm
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======================= =========================
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