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author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2009-04-02 23:22:11 +0100 |
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committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-04-02 23:22:11 +0100 |
commit | cd02938a828f4b2098a074afb7454f106f2e8df5 (patch) | |
tree | 7b543fd6aa82a62dc3a9614c26f89daca83e77d5 /Documentation/hwmon/ltc4215 | |
parent | 9d681f3a1b27fdfc17ea251cf8d5f627dab34670 (diff) | |
parent | 172ef275444efa12d834fb9d1b1acdac92db47f7 (diff) | |
download | talos-op-linux-cd02938a828f4b2098a074afb7454f106f2e8df5.tar.gz talos-op-linux-cd02938a828f4b2098a074afb7454f106f2e8df5.zip |
Merge branch 'smsc911x-armplatforms' of git://github.com/steveglen/linux-2.6
Diffstat (limited to 'Documentation/hwmon/ltc4215')
-rw-r--r-- | Documentation/hwmon/ltc4215 | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/Documentation/hwmon/ltc4215 b/Documentation/hwmon/ltc4215 new file mode 100644 index 000000000000..2e6a21eb656c --- /dev/null +++ b/Documentation/hwmon/ltc4215 @@ -0,0 +1,50 @@ +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 |