On Fri, 25 Jun 2021 14:59:02 +0200 Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> wrote: > 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? > + of_property_read_u32(node, "color", &color); > + seg->led.name = devm_kasprintf(dev, GFP_KERNEL, > + "auxdisplay:%s:" LED_FUNCTION_BACKLIGHT, > + color < LED_COLOR_ID_MAX ? led_colors[color] : ""); If you use devm_led_classdev_register_ext and pass struct led_init_data, LED core will generate name of the LED itself. Marek
