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authorMauro Carvalho Chehab <mchehab+samsung@kernel.org>2019-04-17 06:46:29 -0300
committerGuenter Roeck <linux@roeck-us.net>2019-04-17 10:37:23 -0700
commit7ebd8b66dd9e5a0b65e5ee5e2b8e7ca382ec97b7 (patch)
tree9db30159bd32bec125c7d49e80a79bb7c4da0c8e /Documentation/hwmon/lm95245.rst
parentb04f2f7d387b3160883c2a1f5e2285483a791e82 (diff)
docs: hwmon: Add an index file and rename docs to *.rst
Now that all files were converted to ReST format, rename them and add an index. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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+Kernel driver lm95245
+=====================
+
+Supported chips:
+
+ * TI LM95235
+
+ Addresses scanned: I2C 0x18, 0x29, 0x4c
+
+ Datasheet: Publicly available at the TI website
+
+ http://www.ti.com/lit/ds/symlink/lm95235.pdf
+
+ * TI / National Semiconductor LM95245
+
+ Addresses scanned: I2C 0x18, 0x19, 0x29, 0x4c, 0x4d
+
+ Datasheet: Publicly available at the TI website
+
+ http://www.ti.com/lit/ds/symlink/lm95245.pdf
+
+Author: Alexander Stein <alexander.stein@systec-electronic.com>
+
+Description
+-----------
+
+LM95235 and LM95245 are 11-bit digital temperature sensors with a 2-wire System
+Management Bus (SMBus) interface and TruTherm technology that can monitor
+the temperature of a remote diode as well as its own temperature.
+The chips can be used to very accurately monitor the temperature of
+external devices such as microprocessors.
+
+All temperature values are given in millidegrees Celsius. Local temperature
+is given within a range of -127 to +127.875 degrees. Remote temperatures are
+given within a range of -127 to +255 degrees. Resolution depends on
+temperature input and range.
+
+Each sensor has its own critical limit. Additionally, there is a relative
+hysteresis value common to both critical limits. To make life easier to
+user-space applications, two absolute values are exported, one for each
+channel, but these values are of course linked. Only the local hysteresis
+can be set from user-space, and the same delta applies to the remote
+hysteresis.
+
+The lm95245 driver can change its update interval to a fixed set of values.
+It will round up to the next selectable interval. See the datasheet for exact
+values. Reading sensor values more often will do no harm, but will return
+'old' values.