of_device_is_available(9)

💅 of_device_is_available — like, the whole vibe check for a device node

okay so bestie, welcome to of_device_is_available(9) — that's the device-tree section of the Kernel API Manual, and yes it's exactly as iconic as it sounds ✨

---

🌸 NAME 🌸

of_device_is_available — the "are you actually coming to the party or not" check for a device 🎀

---

✨ SYNOPSIS ✨

bool of_device_is_available (const struct device_node *device );

it returns a bool, it takes exactly one pointer, and it's giving "small function, big main character energy" 💅

---

🫶 ARGUMENTS 🫶

• device — the struct device_node * you're side-eyeing 👀 like, this is the node we're checking for availability. no node, no answer, iykyk.

---

🔥 RETURN 🔥

it hands back true when the status property is absent entirely or when it's literally set to "okay" or "ok" — those two spellings both slay 💖

and false otherwise. no cap. anything else is a no from her 🙈

---

🦋 SEE ALSO 🦋

the kernel source lives at ./drivers/of/base.c — go read it, it's right there 👑

and honestly the whole friend group showed up for this one, so let's give them their moment 🌈:

• of_find_all_nodes(9)
• __of_device_is_compatible(9)
• of_machine_compatible_match(9)
• of_machine_read_compatible(9)
• of_machine_read_model(9)
• of_machine_get_match(9)
• of_machine_get_match_data(9)
• __of_device_is_available(9)
• __of_device_is_reserved(9)
• __of_device_is_fail(9)
• of_device_is_big_endian(9)
• of_get_parent(9)
• of_get_next_parent(9)
• of_get_next_child(9)
• of_get_next_child_with_prefix(9)
• of_get_next_available_child(9)
• of_get_next_reserved_child(9)
• of_get_next_cpu_node(9)
• of_get_compatible_child(9)
• of_get_child_by_name(9)
• of_get_available_child_by_name(9)
• of_find_node_opts_by_path(9)
• of_find_node_by_name(9)
• of_find_node_by_type(9)
• of_find_compatible_node(9)
• of_find_node_with_property(9)
• of_match_node(9)
• of_find_matching_node_and_match(9)
• of_alias_from_compatible(9)
• of_find_node_by_phandle(9)
• of_parse_phandle_with_args_map(9)
• of_count_phandle_with_args(9)
• __of_add_property(9)
• of_add_property(9)
• of_remove_property(9)
• of_alias_scan(9)
• of_alias_get_id(9)
• of_alias_get_highest_id(9)
• of_console_check(9)
• of_find_next_cache_node(9)
• of_find_last_cache_level(9)
• of_map_id(9)
• of_map_iommu_id(9)
• of_map_msi_id(9)

like, that's the entire group chat, everyone's invited 🫶

---

lowkey a reminder: if the status property is there but it's not "okay" or "ok", this function says false. that's the whole rule, don't overthink it bestie 🧚

---

and that's the page!! brought to you by the ./drivers/of crew, dated October 2026 💜 written by the kernel API manual girlies, obviously. mwah 💋⭐