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authorAkira Shimahara <akira215corp@gmail.com>2020-05-11 23:37:25 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-05-15 17:28:59 +0300
commit45d457a4cf24455eefd076a01a3d86414fc2ff1e (patch)
tree8ad2ca133c103d15ee6c960c333bb22148fd6768 /Documentation/ABI/testing/sysfs-driver-w1_therm
parent308bdb94de0c1abe7eac5193f58638b8aeaddf4b (diff)
downloadlinux-45d457a4cf24455eefd076a01a3d86414fc2ff1e.tar.xz
w1_therm: adding eeprom sysfs entry
The driver implement 2 hardware functions to access device RAM: * copy_scratchpad * recall_scratchpad They act according to device specifications. As EEPROM operations are not device dependent (all w1_therm can perform EEPROM read/write operation following the same protocol), it is removed from device families structures. Updating Documentation/ABI/testing/sysfs-driver-w1_therm accordingly. Signed-off-by: Akira Shimahara <akira215corp@gmail.com> Link: https://lore.kernel.org/r/20200511203725.410844-1-akira215corp@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/ABI/testing/sysfs-driver-w1_therm')
-rw-r--r--Documentation/ABI/testing/sysfs-driver-w1_therm14
1 files changed, 14 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-driver-w1_therm b/Documentation/ABI/testing/sysfs-driver-w1_therm
index 7ed95e9e0b64..8b7ee89ac6ce 100644
--- a/Documentation/ABI/testing/sysfs-driver-w1_therm
+++ b/Documentation/ABI/testing/sysfs-driver-w1_therm
@@ -1,3 +1,17 @@
+What: /sys/bus/w1/devices/.../eeprom
+Date: May 2020
+Contact: Akira Shimahara <akira215corp@gmail.com>
+Description:
+ (WO) writing that file will either trigger a save of the
+ device data to its embedded EEPROM, either restore data
+ embedded in device EEPROM. Be aware that devices support
+ limited EEPROM writing cycles (typical 50k)
+ * 'save': save device RAM to EEPROM
+ * 'restore': restore EEPROM data in device RAM
+Users: any user space application which wants to communicate with
+ w1_term device
+
+
What: /sys/bus/w1/devices/.../ext_power
Date: May 2020
Contact: Akira Shimahara <akira215corp@gmail.com>