gpiochip_generic_request(9)

💅 gpiochip_generic_request(9) — like, the kernel API manual, but make it make sense

okay so bestie, welcome to the Kernel API Manual entry for gpiochip_generic_request 🎀 this one's a little guy with a big job: it asks for the gpio function for a pin. that's it. that's the whole vibe. ✨

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✨ NAME ✨

gpiochip_generic_request — request the gpio function for a pin 🫶

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🌸 SYNOPSIS 🌸

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

literally just two args, no cap. look at her go 😭

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🦋 ARGUMENTS 🦋

• gc — the gpio_chip that owns the GPIO 👑 like, the main character of this whole situation.
• offset — the offset of the GPIO you wanna request for the GPIO function. it's giving "which pin tho" energy 💅

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💖 RETURN 💖

0 on success ✨ — or a negative errno on failure 💀 (bestie, always check the return value, i'm begging).

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🌈 SEE ALSO 🌈

okay this list is long long, so buckle up 🧚 grab a snack, we're going in, in the exact order the page gives 'em:

• gpio_to_desc(9), gpio_device_get_desc(9), desc_to_gpio(9), gpiod_hwgpio(9)
• gpiod_to_chip(9), gpiod_to_gpio_device(9)
• gpio_device_get_base(9), gpio_device_get_label(9), gpio_device_get_chip(9)
• gpiochip_find_base_unlocked(9), gpiod_is_equal(9), gpiod_get_direction(9), gpiod_is_single_ended(9)
• gpiochip_query_valid_mask(9), gpiochip_get_data(9), gpiochip_remove(9)
• gpio_device_find(9), gpio_device_find_by_label(9), gpio_device_find_by_fwnode(9)
• gpio_device_get(9), gpio_device_put(9), gpio_device_to_device(9)
• gpiochip_set_hierarchical_irqchip(9), gpiochip_irq_domain_activate(9), gpiochip_irq_domain_deactivate(9), gpiochip_irq_map(9)
• gpiochip_add_irqchip(9), gpiochip_irqchip_remove(9), gpiochip_irqchip_add_domain(9)
• gpiochip_generic_free(9), gpiochip_generic_config(9)
• gpiochip_add_pingroup_range(9), gpiochip_add_pin_range_with_pins(9), gpiochip_remove_pin_ranges(9)
• gpiochip_dup_line_label(9), gpiochip_request_own_desc(9), gpiochip_free_own_desc(9)
• gpio_set_debounce_timeout(9), gpiod_direction_input(9), gpiod_direction_output_raw(9), gpiod_direction_output(9)
• gpiod_enable_hw_timestamp_ns(9), gpiod_disable_hw_timestamp_ns(9)
• gpiod_set_config(9), gpiod_set_debounce(9), gpiod_set_transitory(9)
• gpiod_is_active_low(9), gpiod_toggle_active_low(9)
• gpiod_get_raw_value(9), gpiod_get_value(9), gpiod_get_raw_array_value(9), gpiod_get_array_value(9)
• gpiod_set_raw_value(9), gpiod_set_value_nocheck(9), gpiod_set_value(9), gpiod_set_raw_array_value(9), gpiod_set_array_value(9)
• gpiod_cansleep(9), gpiod_set_consumer_name(9), gpiod_is_shared(9)
• gpiod_to_irq(9), gpiochip_lock_as_irq(9), gpiochip_unlock_as_irq(9)
• gpiod_get_raw_value_cansleep(9), gpiod_get_value_cansleep(9), gpiod_get_raw_array_value_cansleep(9), gpiod_get_array_value_cansleep(9)
• gpiod_set_raw_value_cansleep(9), gpiod_set_value_cansleep(9), gpiod_set_raw_array_value_cansleep(9)
• gpiod_add_lookup_tables(9), gpiod_set_array_value_cansleep(9), gpiod_add_lookup_table(9), gpiod_remove_lookup_table(9)
• fwnode_gpiod_get_index(9), gpiod_count(9), gpiod_get(9), gpiod_get_optional(9)
• gpiod_configure_flags(9), gpiod_get_index(9), gpiod_get_index_optional(9)
• gpiod_hog(9), gpiochip_free_hogs(9)
• gpiod_get_array(9), gpiod_get_array_optional(9), gpiod_put(9), gpiod_put_array(9)

and yeah, the kernel file is ./drivers/gpio/gpiolib.c — that's where the magic lives 📁✨

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💜 fr fr tho: this is the kernel API manual, so it's talking to driver people, not to your terminal. iykyk.

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okay that's the whole page, go touch some GPIOs bestie 🌸🦋 and remember: this lil doc lives in ./drivers/gpio, it's part of the Kernel API Manual, and it's dated October 2026 ⭐ mwah, slay, periodt 💅🎀