Re: [PATCH 0/6] Support for LEGO MINDSTORMS EV3 LCD display

From: David Lechner
Date: Thu Aug 03 2017 - 21:17:28 EST


On 08/03/2017 08:08 PM, David Lechner wrote:
On 08/03/2017 03:11 PM, Noralf TrÃnnes wrote:

Den 03.08.2017 19.11, skrev Andy Shevchenko:
On Thu, Aug 3, 2017 at 8:09 PM, Andy Shevchenko
<andy.shevchenko@xxxxxxxxx> wrote:
On Thu, Aug 3, 2017 at 6:18 PM, David Lechner <david@xxxxxxxxxxxxxx> wrote:

The particular display I have is this one:
http://wiki.seeed.cc/Grove-OLED_Display_1.12inch/

It looks like it uses a command/data scheme like the MIPI displays, but
doesn't use any of the standard values for the commands. The controller can
do parallel, SPI and I2C, but the display I have is wired for I2C.
It looks very similar to ssd1306. Some description refers to ssd1308.
http://www.mouser.com/catalog/specsheets/Seeed_104030008.pdf


That pdf refers to another one: http://wiki.seeed.cc/Grove-OLED_Display_0.96inch/
There's an fbdev driver that supports ssd1305, ssd1306, ssd1307 and ssd1309:
https://www.kernel.org/doc/Documentation/devicetree/bindings/display/ssd1307fb.txt
http://elixir.free-electrons.com/linux/latest/source/drivers/video/fbdev/ssd1307fb.c
Maybe the ssd1308 will work with that driver...


The display I have uses a ssd1327 controller. It is 16-bit grayscale. The ssd130x are all 1-bit monochrome. So, probably more like the ssd1325 driver in fbftf.

correction, 4-bit grayscale