gpiochip_lock_as_irq(9)

💅 gpiochip_lock_as_irq(9) 💅

okay so welcome to the Kernel API Manual, bestie — this is the page for gpiochip_lock_as_irq(9), and it's giving “lock the GPIO, secure the IRQ” energy. no cap. 🫶

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✨ NAME ✨

gpiochip_lock_as_irq — lock a GPIO to be used as IRQ. yes bestie, the name ate and left no crumbs 💅

🎀 SYNOPSIS 🎀

here's the exact signature, character for character:

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

🌸 ARGUMENTS 🌸

• gc — the chip the GPIO to lock belongs to 🦋
• offset — the offset of the GPIO to lock as IRQ ✨

🦋 DESCRIPTION 🦋

so like, this is used directly by GPIO drivers that want to lock down a certain GPIO line to be used for IRQs. that's the whole vibe — GPIO driver main character energy, locking that line down for IRQ duty 👑

💖 RETURN 💖

0 on success, or negative errno on failure. slay when it's 0, weep softly when it's negative 😭

🌈 SEE ALSO 🌈

Kernel file ./drivers/gpio/gpiolib.c — and the whole squad is right here, iykyk:

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_request(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_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)

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🎀 sign-off: source/version line ./drivers/gpio, date October 2026, manual Kernel API Manual, page gpiochip_lock_as_irq(9). periodt, bye bestie! 💖