fdt_begin_node(9)

💖 fdt_begin_node — Kernel API Manual ✨

okay so bestie, this is fdt_begin_node from the Kernel API Manual, and it's literally the "once upon a time" of device tree nodes 🎀

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🌸 NAME 🌸

fdt_begin_node — start creation of a new node

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✨ SYNOPSIS ✨

int fdt_begin_node (void *fdt , const char *name );

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🫶 ARGUMENTS 🫶

• fdt — pointer to the device tree blob, the whole vibe container 💅
• name — name of the node you're about to create, bestie

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💜 DESCRIPTION 💜

So fdt_begin_node starts the creation of a new node with the given name during sequential write. Think of it as opening a fresh group chat, no cap.

After you call this function, properties can be added with fdt_property, and subnodes can be created with additional fdt_begin_node calls — nested group chats, iconic behavior 🦋

⚠️ The node must be completed with fdt_end_node. Do not leave it hanging, that's giving unfinished business and it's not the move 😭

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🌈 RETURN 🌈

• 0 — on success, slay ✨
• -FDT_ERR_NOSPACE — if there is insufficient space in the blob, i.e. the blob said "no room bestie" 💀
• -FDT_ERR_BADSTATE — if not in the correct sequential write state, i.e. wrong place wrong time 🙈

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👑 SEE ALSO 👑

Kernel file ./scripts/dtc/libfdt/libfdt.h

and literally the entire extended family, fr fr:

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_check_full(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_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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and that's the whole page, bestie 💅 this one came from ./scripts/dtc/libfdt, dated October 2026 — go off, king 👑