Searching for Linux Kernel Led Support information? Find all needed info by using official links provided below.
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/index.html
Linux Watchdog Support; Linux Virtualization Support; The Linux Input Documentation; Linux Hardware Monitoring; Linux GPU Driver Developer’s Guide; Security Documentation; Linux Sound Subsystem Documentation; Linux Kernel Crypto API; Filesystems in the Linux kernel; Linux Memory Management Documentation; BPF Documentation; USB support; Linux ...
https://www.phoronix.com/scan.php?page=news_item&px=Linux-RGB-LED-Interface
Jan 06, 2019 · To date RGB LED interface controllers supported by Linux have often exposed separate red/green/blue interfaces to user-space as separate LEDs while now there is a new discussion taking place regarding generic RGB LED support.
https://www.kernel.org/doc/html/latest/leds/leds-class.html
LED handling under Linux ... 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. Triggers can either be simple or complex.
https://fabiobaltieri.com/2011/09/21/linux-led-subsystem/
Linux LED Subsystem. 2011/09/21 10 Comments. ... If you are using Linux as your kernel on a SoC design, you’ll be glad to know that it has an entire subsystem dedicated to LEDs! ... Just run a search on the kernel code for the led_classdev_register function to see if you find something to play with.
https://www.phoronix.com/scan.php?page=news_item&px=Linux-LEDs-Program-Patterns
Oct 22, 2018 · It's not often we get to talk about the LED drivers for the Linux kernel... Yes, the class of Linux kernel drivers to support controlling the brightness of LEDs via supported drivers and exposing that to user-space. With Linux 4.20~5.0 comes finally the ability to program "patterns" for LEDs.
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