STRUCT SAMSUNG_PWM_CHANNEL(9)

💖 struct samsung_pwm_channel(9) — the Kernel API Manual, but make it make sense 💖

okay bestie, welcome to the little glow-up doc for struct samsung_pwm_channel(9) ✨ this is the glow-up where the kernel API actually gets explained in a way that doesn't make your eyes glaze over. it's all about the private data of a PWM channel — yes, private, like it's got a finsta and you don't 🫶

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🌸 NAME 🌸

struct samsung_pwm_channel — private data of PWM channel 💅

like, this struct is the main character of one single channel's vibes. no cap.

✨ SYNOPSIS ✨

struct samsung_pwm_channel {
    u32 period_ns;
    u32 duty_ns;
    u32 tin_ns;
 };

there she is 😭 three little fields, all u32, all iconic.

🎀 Members 🎀

okay so let's do a vibe check on every single member, because we do NOT skip details in this house 🏠💖

• period_ns — current period in nanoseconds programmed to the hardware ⏱️ literally the period, in ns, that's actually been programmed into the hardware. that's it. that's the whole thing.
• duty_ns — current duty time in nanoseconds programmed to the hardware 💅 the duty time, in ns, and again — programmed to the hardware. we stay factual, we stay fed.
• tin_ns — time of one timer tick in nanoseconds with current timer rate 🕰️ one timer tick, measured in ns, using the current timer rate. tiny little unit of time, huge little unit of lore.

ngl, this struct is short but it's doing a LOT. every field is u32, every field is in nanoseconds, and every field is lowkey obsessed with the hardware. periodt.

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🦋 SEE ALSO 🦋

• Kernel file ./drivers/pwm/pwm-samsung.c 👀
• struct samsung_pwm_chip(9) — the sibling, the parent-figure, the one who actually keeps the whole chip together 🫶

iykyk 💜

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okay that's the whole page, bestie 🌈 no notes, no crumbs. this one came straight out of ./drivers/pwm and it's dated October 2026, living its best life as struct samsung_pwm_channel(9) 💖 slay, stay hydrated, and go read pwm-samsung.c 🎀