Re: picolcdgfx driver

Markus Dolze <[email protected]> Sun, 05 May 2013 22:07:53 +0200
Newsgroups	gmane.comp.sysutils.lcdproc
Message-ID	<[email protected]>
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On 30.01.2013 01:59, Scott Meharg wrote:
> Attached is the patch and file for Mini-box.com's PicoLCDGraphics LCD.
>
> It uses glcd driver with connect type picolcdgfx.
>

Hi,

I had a look at this patch this weekend. There are a few things I ask
you to test:

 1. With recent LCDproc CVS version 'paged' memory layouts are directly
    supported. This means there is no conversion necessary from 'linear'
    to 'paged' memory layout.
 2. If the backlight is just switchable (on/off) or if it is adjustable
    (from 0 to max). From reading the lcd4linux I believe the latter
    being true. In this case the driver should be updated to make use of
    (on_brightness / off_brightness).
 3. The way to calculate the contrast setting looks a little weird. See
    my comment in the updated driver.

Attached you find an updated version of the driver. You will need
LCDproc sources as of today for the patch to apply cleanly.

Regards,
Markus


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    <div class="moz-cite-prefix">On 30.01.2013 01:59, Scott Meharg
      wrote:<br>
    </div>
    <blockquote
cite="mid:CAOgbcjQvV8HBY=kOKy71cfYO28ZH6NVWo4TyZBcWzh+zaY6B0w@mail.gmail.com"
      type="cite">
      <pre wrap="">Attached is the patch and file for Mini-box.com's PicoLCDGraphics LCD.

It uses glcd driver with connect type picolcdgfx.
</pre>
      <br>
    </blockquote>
    <br>
    Hi,<br>
    <br>
    I had a look at this patch this weekend. There are a few things I
    ask you to test:<br>
    <ol>
      <li>With recent LCDproc CVS version 'paged' memory layouts are
        directly supported. This means there is no conversion necessary
        from 'linear' to 'paged' memory layout.</li>
      <li>If the backlight is just switchable (on/off) or if it is
        adjustable (from 0 to max). From reading the lcd4linux I believe
        the latter being true. In this case the driver should be updated
        to make use of (on_brightness / off_brightness).</li>
      <li>The way to calculate the contrast setting looks a little
        weird. See my comment in the updated driver.</li>
    </ol>
    <p>Attached you find an updated version of the driver. You will need
      LCDproc sources as of today for the patch to apply cleanly.<br>
    </p>
    <p>Regards,<br>
      Markus<br>
      <br>
    </p>
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