This is the README file for the Crystalfontz display driver for lcd4linux

This driver supports the 632/634 LCD-Modules from Crystalfontz, but should
work for the 626 and 636 modules too. The 634 is a 20x4 character display,
while the others only display 16x2. I've written the driver using a
634 module.

The driver understands the following configuration parameters:

Display:    any of 626, 632, 634 and 636.

Port:	    serial device (i.e. ttyS0) the LCD module is connnected
            to.

Speed:      any of 1200, 2400, 9600 and 19200. By default, the driver
            uses 9600 which is the speed the LCD modules are hardwired
            at. If your module works at a different speed than 9600,
            use this parameter. Otherwise omit it (i.e. omit it when
            you have a 634).

Backlight:  controls the backlight brightness. Quote from 634.pdf from
            the Crystalfonts-Webserver[1]: "0=OFF 100=ON. Intermediate
            values vary the brightness. There are a total of 25 possible
            brightness levels."

Contrast:   controls the contrast settings. Quote[1]: "0=very light,
            100 = very dark. 50 is typical. There are a total of 25
            possible contrast levels."


Known bugs:
When you draw a bar over a previously drawn textfield, the white portion
the bar will not erase the text. Only when the black portion of the bar
has reached the full bar length, the text will be erased. I did not bother
to implement that, since in lcd4linux, the whole display-screen is erased
prior to switching to a different 'screen'. Implementing this feature would
just add to program-overhead. Yes, you guessed it: I did not use the "bar"-
command that comes with the LCD-module, but wrote my own instead.
lcd4linux also supports "split-" or "dual-bars" (two bars in one segment),
which are not available on the Crystalfontz firmware.

  [1] http://www.crystalfontz.com

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<div class='path'>path: <a href='/dtv-scan-tables.git/log/?showmsg=1&amp;follow=1'>root</a>/<a href='/dtv-scan-tables.git/log/dvbv5_isdb-t?showmsg=1&amp;follow=1'>dvbv5_isdb-t</a>/<a href='/dtv-scan-tables.git/log/dvbv5_isdb-t/br-rs-Xangrila?showmsg=1&amp;follow=1'>br-rs-Xangrila</a> (<a href='/dtv-scan-tables.git/log/dvbv5_isdb-t/br-rs-Xangrila?showmsg=1'>unfollow</a>)</div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/dtv-scan-tables.git/log/dvbv5_isdb-t/br-rs-Xangrila?follow=1'>Collapse</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>
<tr class='logheader'><td><span title='2024-01-31 13:08:32 +0100'>2024-01-31</span></td><td class='logsubject'><a href='/dtv-scan-tables.git/commit/isdb-t/br-to-Tocantinopolis?id=e810c267c3a6960c8d57935bb1a9b334026038ed&amp;follow=1'>isdb-t: Update Brazil channel lists</a></td><td>Mauro Carvalho Chehab</td><td>1935</td><td><span class='deletions'>-11312</span>/<span class='insertions'>+70605</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
Use the current lists from portalbsd.com.

Signed-off-by: Mauro Carvalho Chehab &lt;mchehab@kernel.org&gt;


</td></tr>
<tr class='logheader'><td><span title='2024-01-30 17:34:57 +0100'>2024-01-30</span></td><td class='logsubject'><a href='/dtv-scan-tables.git/commit/dvb-s/Trksat-3A4A-42.0E?id=76c5a9110f7ee40fd1c63eca8ca84b125a0ac11e&amp;follow=1'>dvb-s: drop transponders that aren't there at Lyngsat anymore</a></td><td>Mauro Carvalho Chehab</td><td>50</td><td><span class='deletions'>-20357</span>/<span class='insertions'>+0</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
Those transponders may have been renamed or decommissioned. So,
drop them.

Signed-off-by: Mauro Carvalho Chehab &lt;mchehab@kernel.org&gt;


</td></tr>
<tr class='logheader'><td><span title='2024-01-30 17:31:26 +0100'>2024-01-30</span></td><td class='logsubject'><a href='/dtv-scan-tables.git/commit/dvb-s/Yamal-601-49.0E?id=118e8c00436b524273499b6c01b0c4e77083a4b5&amp;follow=1'>dvb-s: update from today's Lyngsat report</a></td><td>Mauro Carvalho Chehab</td><td>196</td><td><span class='deletions'>-15543</span>/<span class='insertions'>+15859</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
Signed-off-by: Mauro Carvalho Chehab &lt;mchehab@kernel.org&gt;


</td></tr>
<tr class='logheader'><td><span title='2024-01-30 17:06:37 +0100'>2024-01-30</span></td><td class='logsubject'><a href='/dtv-scan-tables.git/commit/dvb-t/uk-WinterHill?id=fca403cc92717328bccb3b2a4c747a474632c0da&amp;follow=1'>dtv-scan-tables: full uk transmitter update</a></td><td>Simon Liddicott</td><td>81</td><td><span class='deletions'>-500</span>/<span class='insertions'>+163</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
updates all transmitter files, removes discontinued muxes

Link: https://lore.kernel.org/linux-media/20230216010528.5921-1-simon@liddicott.com
Signed-off-by: Simon Liddicott &lt;simon@liddicott.com&gt;
Signed-off-by: Mauro Carvalho Chehab &lt;mchehab@kernel.org&gt;


</td></tr>
<tr class='logheader'><td><span title='2022-11-25 11:46:20 +0000'>2022-11-25</span></td><td class='logsubject'><a href='/dtv-scan-tables.git/commit/dvb-c/hu-Digikabel?id=833d4cc1dddb3560e93ef7dc6951ab5c204b5c13&amp;follow=1'>dtv-scan-tables: hu-Digikabel changes</a></td><td>Hrotkó Gábor</td><td>1</td><td><span class='deletions'>-1</span>/<span class='insertions'>+26</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
Modifications by: https://digi.hu/tv/csatornalista

         FREQUENCY = 121000000

Link: https://lore.kernel.org/linux-media/8c632dad-d428-402e-a171-baf7234f2d85@gmail.com
Signed-off-by: Mauro Carvalho Chehab &lt;mchehab@kernel.org&gt;


</td></tr>
<tr class='logheader'><td><span title='2022-04-30 16:02:58 +0100'>2022-04-30</span></td><td class='logsubject'><a href='/dtv-scan-tables.git/commit/dvb-t/pt-All?id=57ed2982275045ea5e92ef2a40b9fa58255852e5&amp;follow=1'>pt-All: fix modulation</a></td><td>Mauro Carvalho Chehab</td><td>1</td><td><span class='deletions'>-10</span>/<span class='insertions'>+10</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
Signed-off-by: Mauro Carvalho Chehab &lt;mchehab@kernel.org&gt;


</td></tr>
<tr class='logheader'><td><span title='2022-04-30 15:50:08 +0100'>2022-04-30</span></td><td class='logsubject'><a href='/dtv-scan-tables.git/commit/dvb-t/pt-All?id=5f7b549da3c7ed1e9dfe4fcbbda742a9d7ee5aec&amp;follow=1'>pt-All: Update Portugal channels</a></td><td>Mauro Carvalho Chehab</td><td>1</td><td><span class='deletions'>-34</span>/<span class='insertions'>+70</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
There were some changes at Portugal channel frequencies, mostly
in 2020. Update the DVB-T channel list accordingly, in order to
reflect the current list of emitters.

Signed-off-by: Mauro Carvalho Chehab &lt;mchehab@kernel.org&gt;


</td></tr>
<tr class='logheader'><td><span title='2022-03-07 17:34:29 +0100'>2022-03-07</span></td><td class='logsubject'><a href='/dtv-scan-tables.git/commit/isdb-t/br-to-Palmas?id=e403f83644167e240668c0668a8de04532060683&amp;follow=1'>Update Brazilian ISDB-T tables</a></td><td>Mauro Carvalho Chehab</td><td>549</td><td><span class='deletions'>-2923</span>/<span class='insertions'>+13860</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
Signed-off-by: Mauro Carvalho Chehab &lt;mchehab@kernel.org&gt;


</td></tr>
<tr class='logheader'><td><span title='2022-03-07 17:05:00 +0100'>2022-03-07</span></td><td class='logsubject'><a href='/dtv-scan-tables.git/commit/dvb-s/Intelsat-38-45.1E?id=0eb034356d9699799ed8633ac3fe01622d39e6ff&amp;follow=1'>Update satellite channel lists from Lyngsat</a></td><td>Mauro Carvalho Chehab</td><td>54</td><td><span class='deletions'>-1882</span>/<span class='insertions'>+2326</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
Signed-off-by: Mauro Carvalho Chehab &lt;mchehab@kernel.org&gt;


</td></tr>
<tr class='logheader'><td><span title='2021-12-14 12:36:28 +0100'>2021-12-14</span></td><td class='logsubject'><a href='/dtv-scan-tables.git/commit/dvb-t/uk-WinterHill?id=5acecf65ccd5633c50b8c199cce50fb734635097&amp;follow=1'>dtv-scan-tables: latest UK changes</a></td><td>Simon Liddicott</td><td>4</td><td><span class='deletions'>-24</span>/<span class='insertions'>+24</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
only includes transmitters where there have been changes

Link: https://lore.kernel.org/linux-media/20210128234622.75009-1-simon@liddicott.com
Signed-off-by: Simon Liddicott &lt;simon@liddicott.com&gt;
Signed-off-by: Mauro Carvalho Chehab &lt;mchehab+huawei@kernel.org&gt;


</td></tr>
<tr class='logheader'><td><span title='2021-04-30 21:33:05 +0200'>2021-04-30</span></td><td class='logsubject'><a href='/dtv-scan-tables.git/commit/isdb-t/br-to-Tupirama?id=25ee9e0ce4bbacdb278d4cff306ceb6528c4f548&amp;follow=1'>update Brazilian scan files</a></td><td>Mauro Carvalho Chehab</td><td>2476</td><td><span class='deletions'>-12805</span>/<span class='insertions'>+69312</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
Data updated according with https://portalbsd.com.br/.

Signed-off-by: Mauro Carvalho Chehab &lt;mchehab+huawei@kernel.org&gt;


</td></tr>
<tr class='logheader'><td><span title='2021-04-30 13:29:02 +0200'>2021-04-30</span></td><td class='logsubject'><a href='/dtv-scan-tables.git/commit/dvb-s/Yamal201-90.0E?id=66ec1eabbf6a596b42f6d4802b6aead3e8ba1ad5&amp;follow=1'>Remove legacy entries</a></td><td>Mauro Carvalho Chehab</td><td>129</td><td><span class='deletions'>-24898</span>/<span class='insertions'>+0</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
There are several entries that used to be at Lyngsat.
Several of them were merged with other entries.
On others, there's no TV signal anymore.

So, drop them.

Signed-off-by: Mauro Carvalho Chehab &lt;mchehab+huawei@kernel.org&gt;


</td></tr>
<tr class='logheader'><td><span title='2021-04-30 13:28:58 +0200'>2021-04-30</span></td><td class='logsubject'><a href='/dtv-scan-tables.git/commit/dvb-s/Yamal-601-49.0E?id=f46e7874dd45f03f47b31e8cd56108f3f10711f8&amp;follow=1'>Add new satellites from Lyngsat</a></td><td>Mauro Carvalho Chehab</td><td>75</td><td><span class='deletions'>-21</span>/<span class='insertions'>+29721</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
Those are are new satellite descriptions that didn't use to
exist on Lyngsat. Add them.

Signed-off-by: Mauro Carvalho Chehab &lt;mchehab+huawei@kernel.org&gt;


</td></tr>
<tr class='logheader'><td><span title='2021-04-30 10:31:15 +0200'>2021-04-30</span></td><td class='logsubject'><a href='/dtv-scan-tables.git/commit/dvb-s/Intelsat-38-45.1E?id=137a4b9176f8fb074c955a49ae97865d2fb85095&amp;follow=1'>Rename a few satellites with two names and update frequencies</a></td><td>Mauro Carvalho Chehab</td><td>2</td><td><span class='deletions'>-283</span>/<span class='insertions'>+182</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
Those two satellites have two names. Use Just one of them.

While here, update their frequencies from Lyngsat.

Signed-off-by: Mauro Carvalho Chehab &lt;mchehab+huawei@kernel.org&gt;


</td></tr>
<tr class='logheader'><td><span title='2021-04-30 10:29:42 +0200'>2021-04-30</span></td><td class='logsubject'><a href='/dtv-scan-tables.git/commit/dvb-s/Yamal-402-54.9E?id=cf6e4b502139112c82f092001eb6b9ac3912182a&amp;follow=1'>Update frequencies from Lyngsat</a></td><td>Mauro Carvalho Chehab</td><td>188</td><td><span class='deletions'>-12304</span>/<span class='insertions'>+12666</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
Signed-off-by: Mauro Carvalho Chehab &lt;mchehab+huawei@kernel.org&gt;


</td></tr>