fdt_get_path(9)

✨ NAME ✨

okay so bestie, welcome to fdt_get_path(9) from the Kernel API Manual — the page that determines the full path of a node. that’s the whole assignment. you point at a node, it gives you the path. slay. 🎀

🎀 SYNOPSIS 🎀

int fdt_get_path (const void *fdt , int nodeoffset , char *buf , int buflen );

🌸 ARGUMENTS 🌸

• fdt — pointer to the device tree blob. your whole tree situation lives here. 🌳
• nodeoffset — offset of the node whose path to find. this is the node you’re obsessed with. 💅
• buf — character buffer to contain the returned path (will be overwritten). heads up, it gets overwritten, no cap. 😭
• buflen — size of the character buffer at buf. know your limits bestie. 📏

💖 DESCRIPTION 💖

fdt_get_path computes the full path of the node at offset nodeoffset, and records that path in the buffer at buf. literally its whole job. ✨

💀 NOTE 💀

This function is expensive, as it must scan the device tree structure from the start to nodeoffset. it’s giving “walk the whole timeline to find one moment” energy, so don’t spam it for no reason. 😭

🌈 RETURN 🌈

• 0 — on success, buf contains the absolute path of the node at nodeoffset, as a NUL-terminated string. iconic. ✅
• -FDT_ERR_BADOFFSET — nodeoffset does not refer to a BEGIN_NODE tag. wrong turn bestie. 🙈
• -FDT_ERR_NOSPACE — the path of the given node is longer than (bufsize-1) characters and will not fit in the given buffer. too big for the bag. 💀
• -FDT_ERR_BADMAGIC, -FDT_ERR_BADVERSION, -FDT_ERR_BADSTATE, -FDT_ERR_BADSTRUCTURE — standard meanings. the usual suspects. 🕵️

🦋 SEE ALSO 🦋

Kernel file ./scripts/dtc/libfdt/libfdt.h, plus the whole friend group: 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_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).

big kiss and goodbye bestie 🫶: this page is from source/version ./scripts/dtc/libfdt, dated October 2026, and it’s the fdt_get_path(9) manual page. periodt. 💅✨