Adding a sysfs-driver-w1_therm documentation file in
Documentation/ABI/testing. It describe the onlys sysfs entry of w1_therm
module, based on Documentation/w1/slaves/w1_therm.rst

Signed-off-by: Akira Shimahara <akira215c...@gmail.com>
---
Changes in v5:
- All patch serie in one .c file
- Correcting some comments
- adding <linux/string.h> include

 Documentation/ABI/testing/sysfs-driver-w1_therm | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 Documentation/ABI/testing/sysfs-driver-w1_therm

diff --git a/Documentation/ABI/testing/sysfs-driver-w1_therm 
b/Documentation/ABI/testing/sysfs-driver-w1_therm
new file mode 100644
index 0000000..4a85663
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-driver-w1_therm
@@ -0,0 +1,17 @@
+What:          /sys/bus/w1/devices/.../w1_slave
+Date:          May 2020
+Contact:       Akira Shimahara <akira215c...@gmail.com>
+Description:
+               (RW) return the temperature in 1/1000 degC.
+               *read*: return 2 lines with the hexa output data sent on the
+               bus, return the CRC check and temperature in 1/1000 degC
+               *write* :
+                       * '0' : save the 2 or 3 bytes to the device EEPROM
+                       (i.e. TH, TL and config register)
+                       * '9..12' : set the device resolution in RAM
+                       (if supported)
+                       * Anything else: do nothing
+               refer to Documentation/w1/slaves/w1_therm.rst for detailed
+               information.
+Users:         any user space application which wants to communicate with
+               w1_term device
\ No newline at end of file
-- 
2.26.2

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