pwm_get(9)

💖 pwm_get(9) 💖

okay bestie, welcome to the Kernel API Manual — this is pwm_get(9) and it's literally the glow-up moment where your device finally gets its PWM. ✨

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🎀 NAME 🎀

pwm_get — look up and request a PWM device

Like, you're not just looking at it, you're claiming it. main character energy fr fr.

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🌸 SYNOPSIS 🌸

struct pwm_device * pwm_get (struct device *dev , const char *con_id );

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🦋 ARGUMENTS 🦋

• dev — device for PWM consumer. yes bestie, that's you, the consumer, living your consumer era 💅
• con_id — consumer name

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✨ DESCRIPTION ✨

So here's the tea 🍵 — the lookup is first attempted using DT. That's step one, no skipping ahead.

If the device was not instantiated from a device tree, then a PWM chip and a relative index get looked up via a table supplied by board setup code (peep pwm_add_table for that one 👀).

Once a PWM chip has been found, the specified PWM device will be requested and is ready to be used. slay. that's it. it's ready. 🫶

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🔥 RETURN 🔥

A pointer to the requested PWM device — iconic, honestly 👑

…or an ERR_PTR-encoded error code on failure 😭 (check it, bestie, don't just vibe with the pointer).

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💜 SEE ALSO 💜

Kernel file ./drivers/pwm/core.c — plus the whole friend group:

• pwm_round_waveform_might_sleep(9)
• pwm_get_waveform_might_sleep(9)
• pwm_set_waveform_might_sleep(9)
• pwm_apply_might_sleep(9)
• pwm_apply_atomic(9)
• pwm_get_state_hw(9)
• pwm_adjust_config(9)
• pwm_capture(9)
• pwm_request_from_chip(9)
• of_pwm_get(9)
• acpi_pwm_get(9)
• pwm_put(9)
• devm_pwm_get(9)
• devm_fwnode_pwm_get(9)
• __pwmchip_add(9)
• pwmchip_remove(9)
• pwm_add_table(9)
• pwm_remove_table(9)

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ngl, if you grabbed a PWM and you're done with it, go say hi to pwm_put(9) — don't just leave it hanging 🙈

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okay and before you close the tab — big kisses from the ./drivers/pwm girlies, this one's dated October 2026 ⭐🌈💖 mwah!