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Diffstat (limited to 'Documentation/hwmon/lm70')
| -rw-r--r-- | Documentation/hwmon/lm70 | 51 |
1 files changed, 0 insertions, 51 deletions
diff --git a/Documentation/hwmon/lm70 b/Documentation/hwmon/lm70 deleted file mode 100644 index c3a1f2ea017d..000000000000 --- a/Documentation/hwmon/lm70 +++ /dev/null @@ -1,51 +0,0 @@ -Kernel driver lm70 -================== - -Supported chips: - * National Semiconductor LM70 - Datasheet: http://www.national.com/pf/LM/LM70.html - * Texas Instruments TMP121/TMP123 - Information: http://focus.ti.com/docs/prod/folders/print/tmp121.html - * Texas Instruments TMP122/TMP124 - Information: http://www.ti.com/product/tmp122 - * National Semiconductor LM71 - Datasheet: http://www.ti.com/product/LM71 - * National Semiconductor LM74 - Datasheet: http://www.ti.com/product/LM74 - -Author: - Kaiwan N Billimoria <kaiwan@designergraphix.com> - -Description ------------ - -This driver implements support for the National Semiconductor LM70 -temperature sensor. - -The LM70 temperature sensor chip supports a single temperature sensor. -It communicates with a host processor (or microcontroller) via an -SPI/Microwire Bus interface. - -Communication with the LM70 is simple: when the temperature is to be sensed, -the driver accesses the LM70 using SPI communication: 16 SCLK cycles -comprise the MOSI/MISO loop. At the end of the transfer, the 11-bit 2's -complement digital temperature (sent via the SIO line), is available in the -driver for interpretation. This driver makes use of the kernel's in-core -SPI support. - -As a real (in-tree) example of this "SPI protocol driver" interfacing -with a "SPI master controller driver", see drivers/spi/spi_lm70llp.c -and its associated documentation. - -The LM74 and TMP121/TMP122/TMP123/TMP124 are very similar; main difference is -13-bit temperature data (0.0625 degrees celsius resolution). - -The TMP122/TMP124 also feature configurable temperature thresholds. - -The LM71 is also very similar; main difference is 14-bit temperature -data (0.03125 degrees celsius resolution). - -Thanks to ---------- -Jean Delvare <jdelvare@suse.de> for mentoring the hwmon-side driver -development. |