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authorIngo Molnar <mingo@elte.hu>2009-01-10 12:04:41 +0100
committerIngo Molnar <mingo@elte.hu>2009-01-10 12:04:41 +0100
commitb17304245f0db0ac69b795c411407808f3f2796d (patch)
tree63ed3915d9295bd08f640bf25c322064ba787fad /Documentation/spi/spi-lm70llp
parentbzip2/lzma: centralize format detection (diff)
parentMerge git://git.kernel.org/pub/scm/linux/kernel/git/arjan/linux-2.6-async-2 (diff)
downloadlinux-b17304245f0db0ac69b795c411407808f3f2796d.tar.xz
linux-b17304245f0db0ac69b795c411407808f3f2796d.zip
Merge branch 'linus' into x86/setup-lzma
Conflicts: init/do_mounts_rd.c
Diffstat (limited to 'Documentation/spi/spi-lm70llp')
-rw-r--r--Documentation/spi/spi-lm70llp10
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diff --git a/Documentation/spi/spi-lm70llp b/Documentation/spi/spi-lm70llp
index 154bd02220b9..34a9cfd746bd 100644
--- a/Documentation/spi/spi-lm70llp
+++ b/Documentation/spi/spi-lm70llp
@@ -13,10 +13,20 @@ Description
This driver provides glue code connecting a National Semiconductor LM70 LLP
temperature sensor evaluation board to the kernel's SPI core subsystem.
+This is a SPI master controller driver. It can be used in conjunction with
+(layered under) the LM70 logical driver (a "SPI protocol driver").
In effect, this driver turns the parallel port interface on the eval board
into a SPI bus with a single device, which will be driven by the generic
LM70 driver (drivers/hwmon/lm70.c).
+
+Hardware Interfacing
+--------------------
+The schematic for this particular board (the LM70EVAL-LLP) is
+available (on page 4) here:
+
+ http://www.national.com/appinfo/tempsensors/files/LM70LLPEVALmanual.pdf
+
The hardware interfacing on the LM70 LLP eval board is as follows:
Parallel LM70 LLP