gpiod_get_ra...lue_cansleep(9)

💖 NAME 💖

Okay so bestie, this is the gpiod_get_ra...lue_cansleep(9) page from the Kernel API Manual — aka the full-function moment for gpiod_get_raw_array_value_cansleep(9), and it's literally about reading raw values from an array of GPIOs. Slay. ✨

✨ SYNOPSIS ✨

int gpiod_get_raw_array_value_cansleep (unsigned int array_size , struct gpio_desc **desc_array , struct gpio_array *array_info , unsigned long *value_bitmap );

That's the signature, no cap. 👑

🎀 ARGUMENTS 🎀

• array_size — number of elements in the descriptor array / value bitmap. It's giving "how many are we working with," bestie.
• desc_array — array of GPIO descriptors whose values will be read. These are the little icons we're checking.
• array_info — information on applicability of fast bitmap processing path. Yes, the fast-path tea. ⚡
• value_bitmap — bitmap to store the read values. This is where the results go, periodt.

🦋 DESCRIPTION 🦋

So this function reads the raw values of the GPIOs — i.e. the values of the physical lines, without regard for their ACTIVE_LOW status. Raw is raw, bestie; the physical line is the main character here. 💅

This function is to be called from contexts that can sleep. That's the whole cansleep vibe — it's allowed to snooze. 😴

🔥 RETURN 🔥

It returns 0 on success, or a negative errno on failure. That's the whole story. No mystery, no drama. 💀

🌈 SEE ALSO 🌈

Kernel file ./drivers/gpio/gpiolib.c is the home base mentioned here, and these are all the related icons you can go read next — not me listing the whole friend group:

• 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_lock_as_irq(9), gpiochip_unlock_as_irq(9), gpiod_get_raw_value_cansleep(9), gpiod_get_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)

Cute sign-off: this page comes from source/version ./drivers/gpio, dated October 2026 — and yes, it's still serving Kernel API Manual energy. Bye bestie! 💖✨