tree 70932d81781981285d03768deaf0bc8fb4cfd36b
parent ae53e3740036b5350c4a10dc6fd00fbe3f5134ff
author Ben Sen <0.x29a.0@gmail.com> 1462137813 +0200
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1462138669 -0700

w1: add ability to set (SRAM) and store (EEPROM) configuration for temp sensors like DS18B20

Since many temperature sensors come "preconfigured" with a lower
precision, people are stuck at that precision when running on a kernel
based device (unlike the Dallas 1Wire library for e.g. Arduino, which
supports writing the configuration/scratchpad). This patch adds write
support for the scratchpad/precision registers via w1_slave sysfs.

Signed-off-by: Ben Sen <0.x29a.0@gmail.com>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>