Re: [PATCH 0/4] drm/tiny: Add driver for Solomon SSD1307 OLED displays

[Geert Uytterhoeven]

On Mon, Jan 31, 2022 at 9:39 PM Simon Ser <contact@xxxxxxxxxxx> wrote:
> On Monday, January 31st, 2022 at 21:36, Simon Ser <contact@xxxxxxxxxxx> wrote:
>
> > This driver only advertises XRGB8888 in ssd1307_formats. It would be nice to
> > expose R8 as well so that user-space can directly produce suitable buffers.
> > It would also be nice to have some kind of preferred format, so that user-space
> > knows R8 is preferred over XRGB8888.
>
> Hm, since the format used by the hw is actually R1, adding that to drm_fourcc.h
> would be even better.

What's the story with the Rn formats?
The comments say "n bpp Red", while this is a monochrome (even
inverted) display?

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds