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authorLuiz Sampaio <sampaio.ime@gmail.com>2021-05-19 19:30:45 -0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-05-21 14:51:33 +0200
commitfd6ec5d79507f99639c94f107e8a98550c9e1cf6 (patch)
tree6f2c945283a8a2c9e67e7b6968566d2099a0fac6 /Documentation/ABI/stable
parent1f5e7518f063728aee0679c5086b92d8ea429e11 (diff)
downloadlinux-fd6ec5d79507f99639c94f107e8a98550c9e1cf6.tar.gz
w1: ds2438: adding support for reading page1
Added a sysfs entry to support reading the page1 registers. This registers contain Elapsed Time Meter (ETM) data, which shows for how long the chip is on, as well as an Offset Register data, which can be used to calibrate the current measurement of the chip. Signed-off-by: Luiz Sampaio <sampaio.ime@gmail.com> Link: https://lore.kernel.org/r/20210519223046.13798-6-sampaio.ime@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/ABI/stable')
-rw-r--r--Documentation/ABI/stable/sysfs-driver-w1_ds24386
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/ABI/stable/sysfs-driver-w1_ds2438 b/Documentation/ABI/stable/sysfs-driver-w1_ds2438
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index 00000000000000..fa47437c11d984
--- /dev/null
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+What: /sys/bus/w1/devices/.../page1
+Date: April 2021
+Contact: Luiz Sampaio <sampaio.ime@gmail.com>
+Description: read the contents of the page1 of the DS2438
+ see Documentation/w1/slaves/w1_ds2438.rst for detailed information
+Users: any user space application which wants to communicate with DS2438