Thread (31 messages) 31 messages, 4 authors, 2021-07-15

Re: [PATCH v2 18/18] auxdisplay: ht16k33: Add segment display LED support

From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: 2021-06-28 09:21:26
Also in: linux-leds, linux-mips, lkml

Hi Marek,

On Fri, Jun 25, 2021 at 10:40 PM Marek Behun [off-list ref] wrote:
On Fri, 25 Jun 2021 22:39:16 +0200
Marek Behun [off-list ref] wrote:
quoted
On Fri, 25 Jun 2021 14:59:02 +0200
Geert Uytterhoeven [off-list ref] wrote:
quoted
Instantiate a single LED for a segment display.  This allows the user to
control display brightness and blinking through the LED class API and
triggers, and exposes the display color.
The LED will be named "auxdisplay:<color>:backlight".
What if there are multiple "auxdisplay"s ?
Doesn't this subsystem have IDs? So that you can use auxdisplayN for
device name, for example?
Or if this driver creates a fbdev, maybe "fb<N>" for devicename?
This LED device is only registered when using the HT16K33 to drive
segment displays.
When driving a dot matrix display, the driver still use fbdev and
devm_backlight_device_register(), for backwards compatibility.

Gr{oetje,eeting}s,

                        Geert

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