__of_device_is_available(9)

✨ __of_device_is_available ✨

okay so bestie, welcome to the Kernel API Manual 💅 this one's a little helper from the device tree corner of the kernel, and honestly? it's giving "quick vibe check for hardware" 🎀

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🌸 NAME 🌸

__of_device_is_available — literally just checks if a device is available for use, no cap 🔥

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🦋 SYNOPSIS 🦋

bool __of_device_is_available (const struct device_node *device );

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💖 ARGUMENTS 💖

• device — the node you wanna check for availability, and heads up: you're passing it in with locks already held 🔒 (so like, this is the lowkey internal version, iykyk)

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👑 RETURN 👑

Returns True if the status property is absent or set to "okay" or "ok" — and false otherwise. periodt 💅

So like: no status property at all? slay, it's available. status says "okay" or "ok"? also slay. anything else? nope, not available 🙈

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🧚 SEE ALSO 🧚

Kernel file ./drivers/of/base.c and honestly the whole friend group:

• 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_reserved(9)
• of_device_is_available(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)

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ngl this is the "locks already held" sibling of of_device_is_available(9) — so don't go calling it thinking it'll grab the lock for you, bestie 😭 it won't. read the arguments. 🫶

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💜 that's the whole page!! this one lives in ./drivers/of, dated October 2026, and it's part of the Kernel API Manual — mwah, go forth and vibe check your device nodes 🌈⭐🍓