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| author | Akira Shimahara <akira215corp@gmail.com> | 2020-05-11 23:37:25 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-05-15 17:28:59 +0300 |
| commit | 45d457a4cf24455eefd076a01a3d86414fc2ff1e (patch) | |
| tree | 8ad2ca133c103d15ee6c960c333bb22148fd6768 /Documentation/ABI/testing/sysfs-driver-w1_therm | |
| parent | 308bdb94de0c1abe7eac5193f58638b8aeaddf4b (diff) | |
| download | linux-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_therm | 14 |
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> |