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<title>linux-toradex.git/Documentation/pps, branch master</title>
<subtitle>Linux kernel for Apalis and Colibri modules</subtitle>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/'/>
<entry>
<title>docs: pps.txt: convert to ReST and rename to pps.rst</title>
<updated>2019-06-14T20:31:19+00:00</updated>
<author>
<name>Mauro Carvalho Chehab</name>
<email>mchehab+samsung@kernel.org</email>
</author>
<published>2019-06-12T17:52:56+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=28aedd7ee214eb63a2e6924b5ec2b081aa7b3953'/>
<id>28aedd7ee214eb63a2e6924b5ec2b081aa7b3953</id>
<content type='text'>
This file is already in a good shape: just its title and
adding some literal block markups is needed for it to be
part of the document.

While it has a small chapter with sysfs stuff, most of
the document is focused on driver development.

As it describes a kernel API, move it to the driver-api
directory.

In order to avoid conflicts, let's add an :orphan: tag
to it, to be removed when added to the driver-api book.

Signed-off-by: Mauro Carvalho Chehab &lt;mchehab+samsung@kernel.org&gt;
Acked-by: Rodolfo Giometti &lt;giometti@enneenne.com&gt;
Signed-off-by: Jonathan Corbet &lt;corbet@lwn.net&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This file is already in a good shape: just its title and
adding some literal block markups is needed for it to be
part of the document.

While it has a small chapter with sysfs stuff, most of
the document is focused on driver development.

As it describes a kernel API, move it to the driver-api
directory.

In order to avoid conflicts, let's add an :orphan: tag
to it, to be removed when added to the driver-api book.

Signed-off-by: Mauro Carvalho Chehab &lt;mchehab+samsung@kernel.org&gt;
Acked-by: Rodolfo Giometti &lt;giometti@enneenne.com&gt;
Signed-off-by: Jonathan Corbet &lt;corbet@lwn.net&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drivers/pps: aesthetic tweaks to PPS-related content</title>
<updated>2017-09-09T01:26:51+00:00</updated>
<author>
<name>Robert P. J. Day</name>
<email>rpjday@crashcourse.ca</email>
</author>
<published>2017-09-08T23:17:19+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=a2d818030135c293f878fbb772cf40e7a14c5acc'/>
<id>a2d818030135c293f878fbb772cf40e7a14c5acc</id>
<content type='text'>
Collection of aesthetic adjustments to various PPS-related files,
directories and Documentation, some quite minor just for the sake of
consistency, including:

 * Updated example of pps device tree node (courtesy Rodolfo G.)
 * "PPS-API" -&gt; "PPS API"
 * "pps_source_info_s" -&gt; "pps_source_info"
 * "ktimer driver" -&gt; "pps-ktimer driver"
 * "ppstest /dev/pps0" -&gt; "ppstest /dev/pps1" to match example
 * Add missing PPS-related entries to MAINTAINERS file
 * Other trivialities

Link: http://lkml.kernel.org/r/alpine.LFD.2.20.1708261048220.8106@localhost.localdomain
Signed-off-by: Robert P. J. Day &lt;rpjday@crashcourse.ca&gt;
Acked-by: Rodolfo Giometti &lt;giometti@enneenne.com&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Collection of aesthetic adjustments to various PPS-related files,
directories and Documentation, some quite minor just for the sake of
consistency, including:

 * Updated example of pps device tree node (courtesy Rodolfo G.)
 * "PPS-API" -&gt; "PPS API"
 * "pps_source_info_s" -&gt; "pps_source_info"
 * "ktimer driver" -&gt; "pps-ktimer driver"
 * "ppstest /dev/pps0" -&gt; "ppstest /dev/pps1" to match example
 * Add missing PPS-related entries to MAINTAINERS file
 * Other trivialities

Link: http://lkml.kernel.org/r/alpine.LFD.2.20.1708261048220.8106@localhost.localdomain
Signed-off-by: Robert P. J. Day &lt;rpjday@crashcourse.ca&gt;
Acked-by: Rodolfo Giometti &lt;giometti@enneenne.com&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Doc: clarify source of jitter in USB1.1, and USB2.0</title>
<updated>2017-01-04T21:40:52+00:00</updated>
<author>
<name>Sanjeev</name>
<email>ghane0@gmail.com</email>
</author>
<published>2016-12-24T08:27:31+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=f2c1a053ceedec87aa355fafe60db1af27d7d830'/>
<id>f2c1a053ceedec87aa355fafe60db1af27d7d830</id>
<content type='text'>
Even though the jitter due to USB1.1 may be 1ms,
NTP can reduce its effect significantly.  And
USB2.0 reduces this anyway.

Signed-off-by: Sanjeev Gupta &lt;ghane0@gmail.com&gt;
Signed-off-by: Jonathan Corbet &lt;corbet@lwn.net&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Even though the jitter due to USB1.1 may be 1ms,
NTP can reduce its effect significantly.  And
USB2.0 reduces this anyway.

Signed-off-by: Sanjeev Gupta &lt;ghane0@gmail.com&gt;
Signed-off-by: Jonathan Corbet &lt;corbet@lwn.net&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Doc: Typos in documentation</title>
<updated>2017-01-04T21:39:42+00:00</updated>
<author>
<name>Sanjeev</name>
<email>ghane0@gmail.com</email>
</author>
<published>2016-12-24T08:27:30+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=fe4c56c98c1338c0b8b69d08ccf5694bf8e1dcaf'/>
<id>fe4c56c98c1338c0b8b69d08ccf5694bf8e1dcaf</id>
<content type='text'>
No semantic changes.  The next patch in this series will
do the actual changes to sync with NTP current
best practices

Signed-off-by: Sanjeev Gupta &lt;ghane0@gmail.com&gt;
Signed-off-by: Jonathan Corbet &lt;corbet@lwn.net&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
No semantic changes.  The next patch in this series will
do the actual changes to sync with NTP current
best practices

Signed-off-by: Sanjeev Gupta &lt;ghane0@gmail.com&gt;
Signed-off-by: Jonathan Corbet &lt;corbet@lwn.net&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Doc: Correct PPS doc to reflect code location</title>
<updated>2017-01-04T21:39:26+00:00</updated>
<author>
<name>Sanjeev</name>
<email>ghane0@gmail.com</email>
</author>
<published>2016-12-24T08:27:29+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=e1235e18b502610becb99a1b6971a2afbbe02fa5'/>
<id>e1235e18b502610becb99a1b6971a2afbbe02fa5</id>
<content type='text'>
timepps.h , as well as PPS sample test utilities, are
no longer in the kernel tree.  Update documentation
to point to new locations.

Signed-off-by: Sanjeev Gupta &lt;ghane0@gmail.com&gt;
Signed-off-by: Jonathan Corbet &lt;corbet@lwn.net&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
timepps.h , as well as PPS sample test utilities, are
no longer in the kernel tree.  Update documentation
to point to new locations.

Signed-off-by: Sanjeev Gupta &lt;ghane0@gmail.com&gt;
Signed-off-by: Jonathan Corbet &lt;corbet@lwn.net&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Documentation: pps: fix spelling mistake</title>
<updated>2016-04-28T13:23:59+00:00</updated>
<author>
<name>Eric Engestrom</name>
<email>eric@engestrom.ch</email>
</author>
<published>2016-04-25T06:36:58+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=c0270efc510e53afd99f35aff0d0251672ae07c3'/>
<id>c0270efc510e53afd99f35aff0d0251672ae07c3</id>
<content type='text'>
Signed-off-by: Eric Engestrom &lt;eric@engestrom.ch&gt;
Signed-off-by: Jonathan Corbet &lt;corbet@lwn.net&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Signed-off-by: Eric Engestrom &lt;eric@engestrom.ch&gt;
Signed-off-by: Jonathan Corbet &lt;corbet@lwn.net&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Doc: pps: Fix file name in pps.txt</title>
<updated>2015-07-14T18:35:42+00:00</updated>
<author>
<name>Masanari Iida</name>
<email>standby24x7@gmail.com</email>
</author>
<published>2015-07-13T03:29:11+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=5d250eeb9d9d2237d49cd284ad35a6707694b88e'/>
<id>5d250eeb9d9d2237d49cd284ad35a6707694b88e</id>
<content type='text'>
This patch fix a file name of example code.

Signed-off-by: Masanari Iida &lt;standby24x7@gmail.com&gt;
Acked-by: Rodolfo Giometti &lt;giometti@enneenne.com&gt;
Signed-off-by: Jonathan Corbet &lt;corbet@lwn.net&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This patch fix a file name of example code.

Signed-off-by: Masanari Iida &lt;standby24x7@gmail.com&gt;
Acked-by: Rodolfo Giometti &lt;giometti@enneenne.com&gt;
Signed-off-by: Jonathan Corbet &lt;corbet@lwn.net&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Doc:pps: Fix typo in pps.txt</title>
<updated>2015-06-22T15:59:28+00:00</updated>
<author>
<name>Masanari Iida</name>
<email>standby24x7@gmail.com</email>
</author>
<published>2015-06-10T03:53:47+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=ce9ae951d45a8595d43b614063ec9b49fa236d5c'/>
<id>ce9ae951d45a8595d43b614063ec9b49fa236d5c</id>
<content type='text'>
This patch fix a spelling typo in Documentation/pps/pps.txt

Signed-off-by: Masanari Iida &lt;standby24x7@gmail.com&gt;
Acked-by: Rodolfo Giometti &lt;giometti@enneenne.com&gt;
[jc: did s/into/in the/ on the same line while we were there]
Signed-off-by: Jonathan Corbet &lt;corbet@lwn.net&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This patch fix a spelling typo in Documentation/pps/pps.txt

Signed-off-by: Masanari Iida &lt;standby24x7@gmail.com&gt;
Acked-by: Rodolfo Giometti &lt;giometti@enneenne.com&gt;
[jc: did s/into/in the/ on the same line while we were there]
Signed-off-by: Jonathan Corbet &lt;corbet@lwn.net&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>USB: serial: invoke dcd_change ldisc's handler.</title>
<updated>2013-09-26T16:45:40+00:00</updated>
<author>
<name>Paul Chavent</name>
<email>Paul.Chavent@onera.fr</email>
</author>
<published>2013-09-16T06:41:00+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=833efc0ed19ce9ed7a84dfd3684eb9d892fe9ded'/>
<id>833efc0ed19ce9ed7a84dfd3684eb9d892fe9ded</id>
<content type='text'>
The DCD pin of the serial port can receive a PPS signal. By calling
the port line discipline dcd handle, this patch allow to monitor PPS
through USB serial devices.

However the performance aren't as good as the uart drivers, so
document this point too.

Signed-off-by: Paul Chavent &lt;paul.chavent@onera.fr&gt;
Acked-by: Rodolfo Giometti &lt;giometti@enneenne.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The DCD pin of the serial port can receive a PPS signal. By calling
the port line discipline dcd handle, this patch allow to monitor PPS
through USB serial devices.

However the performance aren't as good as the uart drivers, so
document this point too.

Signed-off-by: Paul Chavent &lt;paul.chavent@onera.fr&gt;
Acked-by: Rodolfo Giometti &lt;giometti@enneenne.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>pps: add parallel port PPS signal generator</title>
<updated>2011-01-13T16:03:21+00:00</updated>
<author>
<name>Alexander Gordeev</name>
<email>lasaine@lvk.cs.msu.su</email>
</author>
<published>2011-01-13T01:00:59+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=46b402a0e5e4b4d81b11c32dfb2312bf5828ecb5'/>
<id>46b402a0e5e4b4d81b11c32dfb2312bf5828ecb5</id>
<content type='text'>
Add PPS signal generator which utilizes STROBE pin of a parallel port to
send PPS signals.  It uses parport abstraction layer and hrtimers to
precisely control the signal.

[akpm@linux-foundation.org: fix build]
Signed-off-by: Alexander Gordeev &lt;lasaine@lvk.cs.msu.su&gt;
Acked-by: Rodolfo Giometti &lt;giometti@linux.it&gt;
Cc: john stultz &lt;johnstul@us.ibm.com&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Add PPS signal generator which utilizes STROBE pin of a parallel port to
send PPS signals.  It uses parport abstraction layer and hrtimers to
precisely control the signal.

[akpm@linux-foundation.org: fix build]
Signed-off-by: Alexander Gordeev &lt;lasaine@lvk.cs.msu.su&gt;
Acked-by: Rodolfo Giometti &lt;giometti@linux.it&gt;
Cc: john stultz &lt;johnstul@us.ibm.com&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</pre>
</div>
</content>
</entry>
</feed>
