STRUCT PWM_ARGS(9)

💖 struct pwm_args (9) — board-dependent PWM arguments 💖

okay so bestie, welcome to the Kernel API Manual, section 9, where we talk about struct pwm_args. this is the board-dependent PWM arguments situation and it's honestly iconic. let's get into it 💅

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✨ SYNOPSIS ✨

struct pwm_args {
    u64 period;
    enum pwm_polarity polarity;
 };

like, that's the whole struct. two members. she's simple, she's elegant, she's giving minimal queen energy 👑

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🌸 Members 🌸

• period — the reference period, periodt. literally what it says on the tin 🎀
• polarity — the reference polarity (an enum pwm_polarity, no cap) 🌈

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🦋 DESCRIPTION 🦋

so this structure describes board-dependent arguments attached to a PWM device ✨ these args are usually retrieved from the PWM lookup table or the device tree — iykyk, that's where they live 🏡

💀 big warning bestie: do NOT confuse this with the PWM state. like, fr fr, they are not the same thing.

the tea is this: PWM arguments represent the initial configuration that users want to use on this PWM device 🫶 — not the current PWM hardware state. one is the vibe you're going for, the other is what the hardware is actually doing right now. two completely different main characters 😭

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🔥 SEE ALSO 🔥

okay the friend group is large and honestly they all ate:

• Kernel file ./include/linux/pwm.h
• enum pwm_polarity(9)
• struct pwm_waveform(9)
• struct pwm_device(9)
• pwm_get_state(9)
• pwm_init_state(9)
• pwm_get_relative_duty_cycle(9)
• pwm_set_relative_duty_cycle(9)
• struct pwm_capture(9)
• struct pwm_ops(9)
• struct pwm_chip(9)
• pwmchip_supports_waveform(9)
• pwm_config(9)
• pwm_enable(9)
• pwm_disable(9)
• pwm_might_sleep(9)

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🌸 and that's the whole page, bestie! this lil slice of the Kernel API Manual lives over in ./include/linux, dated October 2026 — mwah, sending you a struct pwm_args(9) sized kiss 💋🫶✨