[PATCH v2 4/6] docs: ABI: document tm1628 attribute display-text
Geert Uytterhoeven
geert at linux-m68k.org
Tue Feb 22 00:20:54 PST 2022
Hi Heiner,
On Mon, Feb 21, 2022 at 9:26 PM Heiner Kallweit <hkallweit1 at gmail.com> wrote:
> Document the attribute for reading / writing the text to be displayed on
> the 7 segment display.
>
> Signed-off-by: Heiner Kallweit <hkallweit1 at gmail.com>
Thanks for your patch!
> --- /dev/null
> +++ b/Documentation/ABI/testing/sysfs-devices-auxdisplay-tm1628
> @@ -0,0 +1,7 @@
> +What: /sys/devices/.../display-text
> +Date: February 2022
> +Contact: Heiner Kallweit <hkallweit1 at gmail.com>
> +Description:
> + The text to be displayed on the 7 segment display.
> + Any printable character is allowed as input, but some
> + can not be displayed in a readable way with 7 segments.
Hence you may want to make the mapping configurable, cfr.
MAP_TO_SEG7_SYSFS_FILE in include/uapi/linux/map_to_7segment.h?
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org
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
More information about the linux-amlogic
mailing list