pinctrl_gpio_request(9)

💅 pinctrl_gpio_request — the Kernel API Manual, bestie edition ✨

okay so you're in the Kernel API Manual and the page you opened is pinctrl_gpio_request(9). buckle up, this one's short but the DRAMA is real 🎀

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✨ NAME ✨

pinctrl_gpio_request — request a single pin to be used as GPIO 🦋

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🌸 SYNOPSIS 🌸

int pinctrl_gpio_request (struct gpio_chip *gc , unsigned int offset );

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💖 ARGUMENTS 💖

• gc — the GPIO chip structure, straight from the GPIO subsystem 👑
• offset — the hardware offset of the GPIO relative to the controller, iykyk 📍

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🔥 DESCRIPTION 🔥

This function should *ONLY* be used from gpiolib-based GPIO drivers, as part of their gpio_request semantics. like, literally only those, no cap 🙈

platforms and individual drivers shall *NOT* request GPIO pins to be muxed in. not your job, bestie, stay in your lane 💅

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🌈 SEE ALSO 🌈

Kernel file ./drivers/pinctrl/core.c — plus the whole friend group, fr fr:

• pinctrl_provide_dummies(9)
• get_pinctrl_dev_from_devname(9)
• pin_get_from_name(9)
• pin_get_name(9)
• gpio_to_pin(9)
• pinctrl_match_gpio_range(9)
• pinctrl_ready_for_gpio_range(9)
• pinctrl_get_device_gpio_range(9)
• pinctrl_add_gpio_range(9)
• pinctrl_find_gpio_range_from_pin(9)
• pinctrl_remove_gpio_range(9)
• pinctrl_generic_get_group_count(9)
• pinctrl_generic_get_group_name(9)
• pinctrl_generic_get_group_pins(9)
• pinctrl_generic_get_group(9)
• pinctrl_generic_add_group(9)
• pinctrl_generic_remove_group(9)
• pinctrl_generic_free_groups(9)
• pinctrl_get_group_selector(9)
• pinctrl_gpio_free(9)
• pinctrl_gpio_direction_input(9)
• pinctrl_gpio_direction_output(9)
• pinctrl_gpio_set_config(9)
• pinctrl_gpio_get_config(9)
• pinctrl_get(9)
• pinctrl_release(9)
• pinctrl_put(9)
• pinctrl_lookup_state(9)
• pinctrl_commit_state(9)
• pinctrl_select_state(9)
• devm_pinctrl_get(9)
• devm_pinctrl_put(9)
• pinctrl_register_mappings(9)
• pinctrl_unregister_mappings(9)
• devm_pinctrl_register_mappings(9)
• pinctrl_force_sleep(9)
• pinctrl_force_default(9)
• pinctrl_init_done(9)
• pinctrl_select_default_state(9)
• pinctrl_pm_select_default_state(9)
• pinctrl_pm_select_init_state(9)
• pinctrl_pm_select_sleep_state(9)
• pinctrl_pm_select_idle_state(9)
• pinctrl_init_controller(9)
• pinctrl_register(9)
• pinctrl_register_and_init(9)
• pinctrl_unregister(9)
• devm_pinctrl_register(9)
• devm_pinctrl_register_and_init(9)

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and that's the whole vibe check, bestie 🫶 this page came from ./drivers/pinctrl, dated October 2026 — go forth and request responsibly, mwah 💜🧚⭐