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authorKaiwan N Billimoria <kaiwan@designergraphix.com>2006-06-12 16:00:05 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2006-06-22 14:10:35 -0400
commite1a8e913f97e36cc5a23a24a8b4717e84998f13c (patch)
tree3ee23138ab7acba7a8ceb8f38f14eecac055141e /Documentation/hwmon/lm70
parent060b2f5584bf3bbb0268c83c24d5a506780fb702 (diff)
[PATCH] lm70: New hardware monitoring driver
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. Signed-off-by: Kaiwan N Billimoria <kaiwan@designergraphix.com> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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1Kernel driver lm70
2==================
3
4Supported chip:
5 * National Semiconductor LM70
6 Datasheet: http://www.national.com/pf/LM/LM70.html
7
8Author:
9 Kaiwan N Billimoria <kaiwan@designergraphix.com>
10
11Description
12-----------
13
14This driver implements support for the National Semiconductor LM70
15temperature sensor.
16
17The LM70 temperature sensor chip supports a single temperature sensor.
18It communicates with a host processor (or microcontroller) via an
19SPI/Microwire Bus interface.
20
21Communication with the LM70 is simple: when the temperature is to be sensed,
22the driver accesses the LM70 using SPI communication: 16 SCLK cycles
23comprise the MOSI/MISO loop. At the end of the transfer, the 11-bit 2's
24complement digital temperature (sent via the SIO line), is available in the
25driver for interpretation. This driver makes use of the kernel's in-core
26SPI support.
27
28Thanks to
29---------
30Jean Delvare <khali@linux-fr.org> for mentoring the hwmon-side driver
31development.