fdt_check_full(9)

✨ fdt_check_full 💅

okay so bestie, welcome to fdt_check_full(9) — a page straight out of the Kernel API Manual, and she is the vibe check for your device tree. 🌸

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💖 NAME

fdt_check_full — check device tree validity ✨

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🎀 SYNOPSIS

int fdt_check_full (const void *fdt , size_t bufsize );

like literally that's the whole function signature, no cap 🫶

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🦋 ARGUMENTS

• fdt — pointer to the device tree blob. yes, that blob. the flattened one. 👑
• bufsize — size of the buffer containing the device tree. gotta tell her how much room she's working with 🎀

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🌈 DESCRIPTION

okay so fdt_check_full checks that the given buffer contains a valid flattened device tree and that the tree structure is internally consistent. 🔥

this is a more thorough check than fdt_check_header, bestie. like, fdt_check_header glances at the outfit, and fdt_check_full does the full mirror check, the spin, the lighting test, all of it. 💅✨

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⭐ RETURN

• 0 — on success, slay 💖
• -FDT_ERR_BADMAGIC
• -FDT_ERR_BADVERSION
• -FDT_ERR_BADSTATE
• -FDT_ERR_BADSTRUCTURE
• -FDT_ERR_TRUNCATED

these are all standard meanings, iykyk 😭

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🧚 SEE ALSO

okay this is the whole group chat, buckle up 🍓

• Kernel file ./scripts/dtc/libfdt/libfdt.h — the source material, the blueprint, the mothership 👑
• fdt_offset_ptr(9), fdt_next_tag(9), fdt_first_subnode(9), fdt_next_subnode(9), fdt_for_each_subnode(9)
• fdt_header_size(9), fdt_header_size_(9), fdt_check_header(9), fdt_move(9), fdt_get_string(9), fdt_string(9)
• fdt_find_max_phandle(9), fdt_get_max_phandle(9), fdt_generate_phandle(9)
• fdt_num_mem_rsv(9), fdt_get_mem_rsv(9)
• fdt_subnode_offset_namelen(9), fdt_subnode_offset(9)
• fdt_path_offset_namelen(9), fdt_path_offset(9), fdt_get_name(9)
• fdt_first_property_offset(9), fdt_next_property_offset(9), fdt_for_each_property_offset(9)
• fdt_get_property_by_offset(9), fdt_get_property_namelen(9), fdt_get_property(9)
• fdt_getprop_by_offset(9), fdt_getprop_namelen(9), fdt_getprop(9)
• fdt_get_phandle(9)
• fdt_get_alias_namelen(9), fdt_get_alias(9)
• fdt_get_symbol_namelen(9), fdt_get_symbol(9)
• fdt_get_path(9), fdt_supernode_atdepth_offset(9), fdt_node_depth(9), fdt_parent_offset(9)
• fdt_node_offset_by_prop_value(9), fdt_node_offset_by_phandle(9)
• fdt_node_check_compatible(9), fdt_node_offset_by_compatible(9)
• fdt_stringlist_contains(9), fdt_stringlist_count(9), fdt_stringlist_search(9), fdt_stringlist_get(9)
• FDT_MAX_NCELLS(9), fdt_address_cells(9), fdt_size_cells(9)
• fdt_setprop_inplace_namelen_partial(9), fdt_setprop_inplace(9), fdt_setprop_inplace_u32(9), fdt_setprop_inplace_u64(9), fdt_setprop_inplace_cell(9)
• fdt_nop_property(9), fdt_nop_node(9)
• fdt_create_with_flags(9), fdt_create(9), fdt_resize(9)
• fdt_add_reservemap_entry(9), fdt_finish_reservemap(9)
• fdt_begin_node(9), fdt_property(9), fdt_property_placeholder(9), fdt_end_node(9), fdt_finish(9)
• fdt_create_empty_tree(9), fdt_open_into(9), fdt_pack(9)
• fdt_add_mem_rsv(9), fdt_del_mem_rsv(9)
• fdt_set_name(9), fdt_setprop_namelen(9), fdt_setprop(9)
• fdt_setprop_placeholder_namelen(9), fdt_setprop_placeholder(9)
• fdt_setprop_u32(9), fdt_setprop_u64(9), fdt_setprop_cell(9)
• fdt_setprop_string(9), fdt_setprop_namelen_string(9), fdt_setprop_empty(9)
• fdt_appendprop(9), fdt_appendprop_u32(9), fdt_appendprop_u64(9), fdt_appendprop_cell(9), fdt_appendprop_string(9), fdt_appendprop_addrrange(9)
• fdt_delprop(9)
• fdt_add_subnode_namelen(9), fdt_add_subnode(9), fdt_del_node(9)
• fdt_overlay_apply(9), fdt_overlay_target_offset(9)
• fdt_strerror(9)

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ok and one last thing — this whole page lives under ./scripts/dtc/libfdt, and it's dated October 2026. so yeah, she's from the future and she's still iconic. periodt. 💜🎀✨