backlight_de..._get_by_name(9)

okay so bestie, this is the backlight_de..._get_by_name(9) page from the Kernel API Manual, section 9 energy — and the full function name is backlight_device_get_by_name, so let's go. 💖✨

✨ NAME ✨

• backlight_device_get_by_name — get a backlight device by name. That's the whole name-section vibe, no cap. 🎀

🛠️ SYNOPSIS 🛠️

struct backlight_device * backlight_device_get_by_name (const char *name
);

🎀 ARGUMENTS 🎀

• name — the device name, bestie. That's the string you're using to look the device up. 🦋

💅 DESCRIPTION 💅

okay so this function looks up a backlight device by its name. It obtains a reference on the backlight device, and it is the caller's responsibility to drop the reference by calling put_device.

⚠️ bestie, do not ghost that reference. The reference drop is literally your job: call put_device. That's the rule. 💅

🌈 RETURN 🌈

A pointer to the backlight device if found, otherwise NULL. So: found = pointer to the backlight device; not found = NULL. Simple, iconic. ✨

👀 SEE ALSO 👀

the see-also squad, all present and correct:

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

cute sign-off: this page's footer has source/version ./drivers/video/backlight and date October 2026. Bye bestie, go get that backlight device — and drop the reference! 💖🎀🦋