LCDproc development and user support list

Text archives Help

[Lcdproc] picolcdgfx driver

Chronological Thread 
  • From: bsdfan at (Markus Dolze)
  • Subject: [Lcdproc] picolcdgfx driver
  • Date: Wed, 08 May 2013 23:12:10 +0200


committed, thank you.


On 08.05.2013 03:17, Scott Meharg wrote:
> See replies below.
> Attached is the updated driver.
> Thanks,
> Scott
> On Sun, May 5, 2013 at 3:07 PM, Markus Dolze <bsdfan at
> <mailto:bsdfan at>> wrote:
> On 30.01.2013 01:59, Scott Meharg wrote:
>> Attached is the patch and file for'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. I had to initialize the
> backingstore with 0xFF so the first call of _blit would clear
> the ROM graphic from the screen.
> 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). The lcd4linux
> driver did not show a an adjustable backlight. But I tested and
> it does support. Driver has been update 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. Weird indeed. What was I
> thinking.
> 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

Archive powered by MHonArc 2.6.18.

Top of page