STRUCT EMC2305_PLATFORM_DATA(9)

💜 struct emc2305_platform_data(9) 💜

okay bestie, welcome to the Kernel API Manual — section 9, the good section. today's main character is struct emc2305_platform_data, aka the EMC2305 driver's platform data. it's giving "little struct, big responsibilities." let's get into it 🎀

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✨ NAME ✨

struct emc2305_platform_data — EMC2305 driver platform data

like, that's literally it. that's the whole vibe. it's the platform data the EMC2305 driver runs on 🦋

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🌸 SYNOPSIS 🌸

struct emc2305_platform_data {
    u8 max_state;
    u8 pwm_num;
    u8 pwm_output_mask;
    u8 pwm_polarity_mask;
    bool pwm_separate;
    u8 pwm_min[EMC2305_PWM_MAX];
    u16 pwm_freq[EMC2305_PWM_MAX];
 };

no cap, that's the whole shape of it. seven members, one struct, zero notes. look at those array declarations — EMC2305_PWM_MAX is doing the heavy lifting in both of them 💅

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👑 Members 👑

okay so let's meet the members one by one, they all have their own little jobs:

• max_state — maximum cooling state of the cooling device; 🔥 that's the ceiling, the top of the range, the "we can't go any colder than this" energy
• pwm_num — number of active channels; like how many of them are actually awake and doing stuff ✨
• pwm_output_mask — PWM output mask 🎀
• pwm_polarity_mask — PWM polarity mask 🌈
• pwm_separate — separate PWM settings for every channel; yup, this one's a bool, so it's a yes/no situation — every channel gets its own settings when it's on 💖
• pwm_min — array of minimum PWM per channel; type u8, sized EMC2305_PWM_MAX, one minimum per channel 🍓
• pwm_freq — array of PWM frequency per channel; type u16 this time (upgraded!), sized EMC2305_PWM_MAX, one frequency per channel ⭐

lowkey obsessed with the fact that pwm_min is u8 and pwm_freq is u16. the frequency got the glow-up. as it should 💅

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🫶 SEE ALSO 🫶

• Kernel file ./include/linux/platform_data/emc2305.h — yeah, go read the header, that's where the real lore lives 📖

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that's the whole page bestie, you ate it 💖

so this one's from ./include/linux/platform_data, dated October 2026, and the page itself is struct emc23...latform_data(9) — yes the title's truncated, we don't know her full name either, it's an icon thing 👑 mwah, go touch some PWM channels, ily 🧚💜