docs: misc-devices/pci-endpoint-test.txt: convert to ReST

- use title markups;
- mark literal blocks.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/1b1f4e5e57fd2065828cecc9d07afbd247349e94.1592203650.git.mchehab+huawei@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Mauro Carvalho Chehab 2020-06-15 08:50:13 +02:00 committed by Jonathan Corbet
parent 3471b9f7e4
commit 8a05eb89cb
4 changed files with 15 additions and 14 deletions

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@ -1,6 +1,8 @@
---------------------------------
.. 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
---------
=====
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
-----------
=======
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/

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@ -14,6 +14,7 @@ fit into other categories.
.. toctree::
:maxdepth: 2
ad525x_dpot
eeprom
ibmvmc
ics932s401

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@ -24,7 +24,7 @@ config AD525X_DPOT
AD5271, AD5272, AD5274
digital potentiometer chips.
See Documentation/misc-devices/ad525x_dpot.txt for the
See Documentation/misc-devices/ad525x_dpot.rst for the
userspace interface.
This driver can also be built as a module. If so, the module

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@ -58,7 +58,7 @@
* AD5272 1 1024 20, 50, 100 (50-TP)
* AD5274 1 256 20, 50, 100 (50-TP)
*
* See Documentation/misc-devices/ad525x_dpot.txt for more info.
* See Documentation/misc-devices/ad525x_dpot.rst for more info.
*
* derived from ad5258.c
* Copyright (c) 2009 Cyber Switching, Inc.