STRUCT PWM_OPS(9)

✨ NAME ✨

Kernel API Manual, page struct pwm_ops(9) — welcome to the group chat, bestie! 🫶

struct pwm_ops — PWM controller operations. That's the whole NAME vibe, and honestly? Iconic. 👑

🦋 SYNOPSIS 🦋

Okay so here's the struct, and I need you to keep every single signature exactly as written — no renaming, no merging, no “creative” edits, fr fr:

struct pwm_ops {
    int (*request)(struct pwm_chip *chip, struct pwm_device *pwm);
    void (*free)(struct pwm_chip *chip, struct pwm_device *pwm);
    int (*capture)(struct pwm_chip *chip, struct pwm_device *pwm, struct pwm_capture *result, unsigned long timeout);
    size_t sizeof_wfhw;
    int (*round_waveform_tohw)(struct pwm_chip *chip, struct pwm_device *pwm, const struct pwm_waveform *wf, void *wfhw);
    int (*round_waveform_fromhw)(struct pwm_chip *chip, struct pwm_device *pwm, const void *wfhw, struct pwm_waveform *wf);
    int (*read_waveform)(struct pwm_chip *chip, struct pwm_device *pwm, void *wfhw);
    int (*write_waveform)(struct pwm_chip *chip, struct pwm_device *pwm, const void *wfhw);
    int (*apply)(struct pwm_chip *chip, struct pwm_device *pwm, const struct pwm_state *state);
    int (*get_state)(struct pwm_chip *chip, struct pwm_device *pwm, struct pwm_state *state);
};

🎀 Members 🎀

• request — optional hook for requesting a PWM. ✨
• free — optional hook for freeing a PWM. 🦋
• capture — capture and report PWM signal. 💅
• sizeof_wfhw — size (in bytes) of driver specific waveform presentation. 🎀
• round_waveform_tohw — convert a struct pwm_waveform to driver specific presentation. 🌸
• round_waveform_fromhw — convert a driver specific waveform presentation to struct pwm_waveform. 💖
• read_waveform — read driver specific waveform presentation from hardware. 🔥
• write_waveform — write driver specific waveform presentation to hardware. ⭐
• apply — atomically apply a new PWM config. 👑
• get_state — get the current PWM state. 🌈

🌟 SEE ALSO 🌟

Kernel file: ./include/linux/pwm.h

• enum pwm_polarity(9)
• struct pwm_args(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_chip(9)
• pwmchip_supports_waveform(9)
• pwm_config(9)
• pwm_enable(9)
• pwm_disable(9)
• pwm_might_sleep(9)

🫶 and that's the whole page, bestie — go forth and keep those ops exactly as listed. Source/version: ./include/linux · date: October 2026 · manual page: struct pwm_ops(9) 🌸