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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2009-04-02 23:22:11 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2009-04-02 23:22:11 +0100
commitcd02938a828f4b2098a074afb7454f106f2e8df5 (patch)
tree7b543fd6aa82a62dc3a9614c26f89daca83e77d5 /Documentation/hwmon/ltc4215
parent9d681f3a1b27fdfc17ea251cf8d5f627dab34670 (diff)
parent172ef275444efa12d834fb9d1b1acdac92db47f7 (diff)
downloadtalos-op-linux-cd02938a828f4b2098a074afb7454f106f2e8df5.tar.gz
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Merge branch 'smsc911x-armplatforms' of git://github.com/steveglen/linux-2.6
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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>
+
+
+Description
+-----------
+
+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 need to use
+the "force" parameter to tell the driver where to find the device.
+
+Example: the following will load the driver for an LTC4215 at address 0x44
+on I2C bus #0:
+$ modprobe ltc4215 force=0,0x44
+
+
+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
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