- use title markups; - mark literal blocks. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx> --- .../{ad525x_dpot.txt => ad525x_dpot.rst} | 24 +++++++++---------- Documentation/misc-devices/index.rst | 1 + 2 files changed, 13 insertions(+), 12 deletions(-) rename Documentation/misc-devices/{ad525x_dpot.txt => ad525x_dpot.rst} (85%) diff --git a/Documentation/misc-devices/ad525x_dpot.txt b/Documentation/misc-devices/ad525x_dpot.rst similarity index 85% rename from Documentation/misc-devices/ad525x_dpot.txt rename to Documentation/misc-devices/ad525x_dpot.rst index 0c9413b1cbf3..6483ec254520 100644 --- a/Documentation/misc-devices/ad525x_dpot.txt +++ b/Documentation/misc-devices/ad525x_dpot.rst @@ -1,6 +1,8 @@ ---------------------------------- - AD525x Digital Potentiometers ---------------------------------- +.. SPDX-License-Identifier: GPL-2.0 + +============================= +AD525x Digital Potentiometers +============================= The ad525x_dpot driver exports a simple sysfs interface. This allows you to work with the immediate resistance settings as well as update the saved startup @@ -8,9 +10,8 @@ settings. Access to the factory programmed tolerance is also provided, but interpretation of this settings is required by the end application according to the specific part in use. ---------- - Files ---------- +Files +===== Each dpot device will have a set of eeprom, rdac, and tolerance files. How many depends on the actual part you have, as will the range of allowed values. @@ -24,23 +25,22 @@ and may vary greatly on a part-by-part basis. For exact interpretation of this field, please consult the datasheet for your part. This is presented as a hex file for easier parsing. ------------ - Example ------------ +Example +======= Locate the device in your sysfs tree. This is probably easiest by going into -the common i2c directory and locating the device by the i2c slave address. +the common i2c directory and locating the device by the i2c slave address:: # ls /sys/bus/i2c/devices/ 0-0022 0-0027 0-002f So assuming the device in question is on the first i2c bus and has the slave -address of 0x2f, we descend (unrelated sysfs entries have been trimmed). +address of 0x2f, we descend (unrelated sysfs entries have been trimmed):: # ls /sys/bus/i2c/devices/0-002f/ eeprom0 rdac0 tolerance0 -You can use simple reads/writes to access these files: +You can use simple reads/writes to access these files:: # cd /sys/bus/i2c/devices/0-002f/ diff --git a/Documentation/misc-devices/index.rst b/Documentation/misc-devices/index.rst index 2d454b413aef..005547c1ad5d 100644 --- a/Documentation/misc-devices/index.rst +++ b/Documentation/misc-devices/index.rst @@ -14,6 +14,7 @@ fit into other categories. .. toctree:: :maxdepth: 2 + ad525x_dpot eeprom ibmvmc ics932s401 -- 2.24.1