STRUCT LM3530_PLATFORM_DATA(9)

💖 struct lm3530_platform_data(9) 💖

okay so bestie, welcome to the Kernel API Manual ✨ — this is the page for struct lm3530_platform_data, and we're gonna go through it field by field, no skipping, no cap. It's a struct, it's got members, and every single one of them is here. let's get into it 🫶

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🌸 NAME 🌸

struct lm3530_platform_data — and that's literally it, the description line is blank in the original 😭 not me showing up to the function with no one-liner. iconic behavior honestly. moving on 💅

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✨ SYNOPSIS ✨

struct lm3530_platform_data {
    enum lm3530_mode mode;
    enum lm3530_als_mode als_input_mode;
    u8 max_current;
    bool pwm_pol_hi;
    u8 als_avrg_time;
    bool brt_ramp_law;
    u8 brt_ramp_fall;
    u8 brt_ramp_rise;
    u8 als1_resistor_sel;
    u8 als2_resistor_sel;
    u32 als_vmin;
    u32 als_vmax;
    u8 brt_val;
    struct lm3530_pwm_data pwm_data;
 };

look at that layout. the way it's all aligned. ate and left no crumbs 🎀 keep it exactly like this, no reformatting, we don't do that here.

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🎀 Members 🎀

okay this is the main character section, let's go member by member 👑

• mode — the mode of operation, i.e. Manual, ALS or PWM. pick your fighter 🥊
• als_input_mode — selects the source of the ALS input: ALS1/2 or average. choose wisely bestie ✨
• max_current — full scale LED current. the ceiling, the limit, the whole vibe 🌈
• pwm_pol_hi — PWM input polarity: active high / active low. two options, both valid, live your truth 💅
• als_avrg_time — ALS input averaging time. it's giving patience 🧘‍♀️
• brt_ramp_law — brightness mapping mode: exponential / linear. math but make it cute 📈
• brt_ramp_fall — the rate of fall of led current. going down, down 🦋
• brt_ramp_rise — the rate of rise of led current. and we're going up 🔥
• als1_resistor_sel — internal resistance from the ALS1 input to ground. grounding, literally ⚡
• als2_resistor_sel — internal resistance from the ALS2 input to ground. same energy, second input 🫶
• als_vmin — als input voltage calibrated for max brightness in mV. yes, max ↔ vmin, that's the bit, don't @ me 😭
• als_vmax — als input voltage calibrated for min brightness in mV. they're swapped-ish and that's just how it is 🌀
• brt_val — brightness value, range 0-127. keep it in bounds bestie, don't be out here freelancing 🙈
• pwm_data — the PWM control functions — and heads up: only valid when the mode is PWM. so if you're not in PWM mode, this field is just sitting there being decorative 💀

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⚠️ tiny vibe check: that last one is a real caveat, not a joke — pwm_data is only valid when mode is PWM. treat it accordingly, no cap.

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🦋 SEE ALSO 🦋

Kernel file ./include/linux/led-lm3530.h — go read the source bestie, it's right there and it's free 📚

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and that's the whole page! 🎉 this one came from ./include/linux, dated October 2026, and it's the struct lm3530_platform_data(9) page — so if you ever need to find it again, that's the name, slay 💖✨🌸