w1: Add support for DS28EA00 sequence to w1-therm
This patch provides support for the DS28EA00 digital thermometer. The DS28EA00 provides an additional two pins for implementing a sequence detection algorithm. This feature allows you to determine the physical location of the chip in the 1-wire bus without needing pre-existing knowledge of the bus ordering. Support is provided through the sysfs w1_seq file. The file will contain a single line with an integer value representing the device index in the bus starting at 0. Signed-off-by: NMatt Campbell <mattrcampbell@gmail.com> Acked-by: NEvgeniy Polyakov <zbr@ioremap.net> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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