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https://linuxkernel51.blogspot.com/2015/08/module-to-use-led-support.html
Aug 10, 2015 · In kernel modules it was crude practice to control the LED by controlling its corresponding GPIO, this requires, proper pin-muxing is done and in your module you have to do "requesting for GPIO" --> "make sure it is valid" --> "setting as output" -> "setting gpio value to 0/1" to turn OFF/ON.
https://www.toradex.com/community/questions/646/how-to-use-linux-kernel-to-control-leds-connected.html
We would like to control LEDs connected to GPIOs on Colibri i.MX6 using LED support in Linux kernel. Unfortunately the kernel does not export LEDs via sysfs API (/sys/class/leds/) while the device tree seems to parsed correctly.Related part of DTS file:
https://www.kernel.org/doc/html/latest/leds/leds-class.html
The brightness file will set the brightness of the LED (taking a value 0-max_brightness). Most LEDs don’t have hardware brightness support so will just be turned on for non-zero brightness settings. The class also introduces the optional concept of an LED trigger. A trigger is a kernel based source of led events.
https://www.kernel.org/doc/html/latest/leds/leds-mlxcpld.html
The Linux kernel user’s and administrator’s guide; Kernel Build System; The Linux kernel firmware guide; The Linux kernel user-space API guide; IOCTLs; Working with the kernel development community; Development tools for the kernel; How to write kernel documentation; Kernel Hacking Guides; Linux Tracing Technologies; Kernel Maintainer ...
http://lkml.iu.edu/hypermail/linux/kernel/1312.3/01237.html
Next in thread: One Thousand Gnomes: "Re: [PATCH] Add LED pattern trigger" Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] The LED pattern trigger allows LEDs blink in user defined pattern.
https://android.googlesource.com/kernel/msm/+/android-msm-flo-3.4-jb-mr2/drivers/leds/Kconfig
bool "LED Support" help: Say Y to enable Linux LED support. This allows control of supported: LEDs from both userspace and optionally, by kernel events (triggers). This is not related to standard keyboard LEDs which are controlled: via the input system. if NEW_LEDS: config …
https://github.com/raspberrypi/firmware/commit/65e34b54919dcc1e3824c99fe0432b10212c92f2
This repository contains pre-compiled binaries of the current Raspberry Pi kernel and modules, userspace libraries, and bootloader/GPU firmware. - raspberrypi/firmware
https://bbs.archlinux.org/viewtopic.php?id=174542
Dec 21, 2013 · For Debian based systems there is documentation for an kernel module named leds-alix, unfortunately it isn't inside our kernel. Compiling the module from its sources doesn't worked. ... [SOLVED] Alix LED Support for Arch. The include was missing, now the make command in the Makefile which is included in the archiv is working.
https://wiki.gentoo.org/wiki/Wifi
WiFi during installation. If a WiFi connection is needed while installing Gentoo, note that the Gentoo minimal install CD has a limited number of drivers available, and provides only wpa_cli (and not wpa_gui) for configuring for WPA/WPA2/Enterprise connections.. If the minimal install CD does not contain the required drivers or the graphical frontend to wpa_supplicant is preferred, choose a ...
https://patchwork.kernel.org/patch/11285085/
>On 2019-12-11 15:21, Lorenzo Bianconi wrote: > > Initialize brightness_set and blink_set callbacks to > > mt7615_led_set_brightness and mt7615_led_set_blink in order ...
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