fdt_add_subnode_namelen(9)

💖 NAME 💖

okay so this is fdt_add_subnode_namelen(9), straight outta the Kernel API Manual, and it creates a new node based on substring. that's the whole assignment, bestie. 💅✨

✨ SYNOPSIS ✨

the signature is giving:

int fdt_add_subnode_namelen (void *fdt , int parentoffset , const char
       *name , int namelen );

🎀 ARGUMENTS 🎀

• fdt — pointer to the device tree blob. 🫶
• parentoffset — structure block offset of a node.
• name — name of the subnode to create. 🌸
• namelen — number of characters of name to consider.

🦋 DESCRIPTION 🦋

it's literally identical to fdt_add_subnode, except it only uses the first namelen characters of name as the name of the new node. no cap.

so it's useful for creating subnodes based on a portion of a larger string — such as a full path. periodt. 💅

🌸 RETURN 🌸

returns the structure block offset of the created subnode (>=0) when it works, or a negative libfdt error value otherwise 😭.

🔥 SEE ALSO 🔥

the kernel file is ./scripts/dtc/libfdt/libfdt.h, and here's the full squad — every single one, no cuts:

• 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_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(9)
• fdt_del_node(9)
• fdt_overlay_apply(9)
• fdt_overlay_target_offset(9)
• fdt_strerror(9)

mwah 💋 this page comes from ./scripts/dtc/libfdt and is dated October 2026 — that's the cute little footer, bestie. 💖👑