of_find_backlight_by_node(9)

🌸 NAME 🌸

okay so bestie, welcome to the Kernel API Manual page for of_find_backlight_by_node(9) 💅 this one is literally about finding a backlight device by its device-tree node. no cap.

✨ SYNOPSIS ✨

struct backlight_device * of_find_backlight_by_node (struct device_node
       *node );

🦋 ARGUMENTS 🦋

• node — the device-tree node of the backlight device. that's the one you're looking up, bestie 🎀

🌈 DESCRIPTION 🌈

So this function returns a pointer to the backlight device corresponding to the given DT node, or NULL if no such backlight device exists or if the device hasn't been probed yet. 💖

It also obtains a reference on the backlight device, and it is the caller's responsibility to drop that reference by calling put_device on the backlight device's .dev field. Don't forget, or the vibe check will fail 😭

bestie this is the part where you don't ghost the reference — drop it by calling put_device on the backlight device's .dev field. that's literally the caller's responsibility 🫶

🔥 SEE ALSO 🔥

• Kernel file ./drivers/video/backlight/backlight.c overview(9)
• backlight_force_update(9)
• backlight_device_get_by_name(9)
• devm_backlight_device_register(9)
• devm_backlight_device_unregister(9)
• devm_of_find_backlight(9)

Source/version: ./drivers/video/backlight · date: October 2026 · page: of_find_backlight_by_node(9). k bye bestie, go get that backlight 💅🫶