led_get_default_pattern(9)

💖 led_get_default_pattern(9) — like, the Kernel API Manual page, bestie 💖

Okay so welcome to led_get_default_pattern(9), straight out of the Kernel API Manual ✨ grab a lil snack, this one's short and sweet 🍓

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🌸 NAME 🌸

led_get_default_pattern — returns the default pattern 🎀 lowkey does exactly what it says on the tin, no cap

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✨ SYNOPSIS ✨

u32 * led_get_default_pattern (struct led_classdev *led_cdev , unsigned
int *size );

That's the whole vibe right there 👑 a u32 * coming back at you, takes a struct led_classdev * and an unsigned int *, iconic signature honestly 💅

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🦋 ARGUMENTS 🦋

• led_cdev — the LED you're getting the default pattern for 💡 it's giving "which LED bestie"
• size — a pointer for storing the number of elements in the returned array 🌈 and here's the tea: it's modified only if the return is != NULL 😭 so don't go reading it if you got nothing back

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💜 RETURN 💜

You get an allocated array of integers with the default pattern from the device tree, or NULL if there isn't one 🧚

⚠️ Bestie, listen: the caller is responsible for kfree. That array is yours now. You allocated it (well, the function did, for you), you free it. Periodt 💀

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🌟 SEE ALSO 🌟

Kernel file ./include/linux/leds.h — go read it, iykyk 📖 and also all of these cuties:

• 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_mc_set_brightness(9)
• led_update_brightness(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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mwah 💋 that's the page! This lil beauty lives in ./include/linux and the version/date stamp on it is October 2026, filed under led_get_default_pattern(9) 🫶 go forth and free your arrays, bestie 🌈⭐