led_mc_set_brightness(9)

✨ led_mc_set_brightness — the Kernel API Manual glow-up ✨

Okay bestie, welcome to the Kernel API Manual page for led_mc_set_brightness(9) — yes, the multicolor LED function, and yes, she ate 💅

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🌸 NAME 🌸

led_mc_set_brightness — set mc LED color intensity values and brightness 🎀

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🦋 SYNOPSIS 🦋

void led_mc_set_brightness (struct led_classdev *led_cdev , unsigned int
*intensity_value , unsigned int num_colors , unsigned int brightness );

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💖 ARGUMENTS 💖

• led_cdev — the LED to set, like literally the main character here 👑
• intensity_value — array of per color intensity values to set, one lil entry per color 🌈
• num_colors — amount of entries in intensity_value array, so she knows how many vibes she's working with ✨
• brightness — the brightness to set the LED to, glow level unlocked 🔥

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💅 DESCRIPTION 💅

Set a multi-color LED's per color intensity values and brightness. If necessary, this cancels the software blink timer. This function is guaranteed not to sleep 😴🚫 — no nap time, periodt.

Calling this function on a non multi-color led_classdev or with the wrong num_colors value is an error. In this case an error will be logged once and the call will do nothing. Not me warning you — okay yes, me warning you: vibe check your args first, bestie 🫶

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🌟 SEE ALSO 🌟

• Kernel file ./include/linux/leds.h struct led_lookup_data(9)
• led_classdev_register_ext(9)
• led_classdev_register(9)
• led_blink_set(9)
• led_blink_set_nosleep(9)
• led_blink_set_oneshot(9)
• led_set_brightness(9)
• led_set_brightness_sync(9)
• led_update_brightness(9)
• led_get_default_pattern(9)
• led_sysfs_disable(9)
• led_sysfs_enable(9)
• led_compose_name(9)
• led_get_color_name(9)
• led_sysfs_is_disabled(9)
• struct led_pattern(9)

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And that's the whole page, bestie — iconic, no cap. 💜

Sign-off time: this cutie lives in ./include/linux, dated October 2026, and she's officially led_mc_set_brightness(9). Go forth and glow responsibly 🧚✨🎀