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