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authorDan Williams <dan.j.williams@intel.com>2009-09-08 17:55:21 -0700
committerDan Williams <dan.j.williams@intel.com>2009-09-08 17:55:21 -0700
commitbbb20089a3275a19e475dbc21320c3742e3ca423 (patch)
tree216fdc1cbef450ca688135c5b8969169482d9a48 /Documentation/hwmon/tmp401
parent3e48e656903e9fd8bc805c6a2c4264d7808d315b (diff)
parent657a77fa7284d8ae28dfa48f1dc5d919bf5b2843 (diff)
downloadop-kernel-dev-bbb20089a3275a19e475dbc21320c3742e3ca423.zip
op-kernel-dev-bbb20089a3275a19e475dbc21320c3742e3ca423.tar.gz
Merge branch 'dmaengine' into async-tx-next
Conflicts: crypto/async_tx/async_xor.c drivers/dma/ioat/dma_v2.h drivers/dma/ioat/pci.c drivers/md/raid5.c
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+Kernel driver tmp401
+====================
+
+Supported chips:
+ * Texas Instruments TMP401
+ Prefix: 'tmp401'
+ Addresses scanned: I2C 0x4c
+ Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp401.html
+ * Texas Instruments TMP411
+ Prefix: 'tmp411'
+ Addresses scanned: I2C 0x4c
+ Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp411.html
+
+Authors:
+ Hans de Goede <hdegoede@redhat.com>
+ Andre Prendel <andre.prendel@gmx.de>
+
+Description
+-----------
+
+This driver implements support for Texas Instruments TMP401 and
+TMP411 chips. These chips implements one remote and one local
+temperature sensor. Temperature is measured in degrees
+Celsius. Resolution of the remote sensor is 0.0625 degree. Local
+sensor resolution can be set to 0.5, 0.25, 0.125 or 0.0625 degree (not
+supported by the driver so far, so using the default resolution of 0.5
+degree).
+
+The driver provides the common sysfs-interface for temperatures (see
+/Documentation/hwmon/sysfs-interface under Temperatures).
+
+The TMP411 chip is compatible with TMP401. It provides some additional
+features.
+
+* Minimum and Maximum temperature measured since power-on, chip-reset
+
+ Exported via sysfs attributes tempX_lowest and tempX_highest.
+
+* Reset of historical minimum/maximum temperature measurements
+
+ Exported via sysfs attribute temp_reset_history. Writing 1 to this
+ file triggers a reset.
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