fdt_setprop_namelen_string(9)

✨ NAME ✨

okay so bestie, this is the Kernel API Manual page for fdt_setprop_namelen_string(9). under NAME it’s fdt_setprop_namelen_string — set a property to a string value. no cap, that’s the whole assignment. 💅

---

🌸 SYNOPSIS 🌸

here’s the exact call, do not freestyle the signature:

fdt_setprop_namelen_string (fdt , nodeoffset , name , namelen , str );

---

🎀 ARGUMENTS 🎀

bestie, the cast is giving:

• fdt — pointer to the device tree blob 🌳
• nodeoffset — offset of the node whose property to change
• name — name of the property to change
• namelen — number of characters of name to consider
• str — string value for the property

---

🦋 DESCRIPTION 🦋

okay so fdt_setprop_namelen_string sets the value of the named property in the given node to the given string value — and she uses the length of the string to determine the new length of the property. if the property does not already exist, she creates a new property with that value. periodt. ✨

bestie, important: this function may insert or delete data from the blob, and will therefore change the offsets of some existing nodes. so those offsets are not giving immutable main character energy. 😭

---

🔥 RETURN 🔥

return values, in all their glory:

• 0 — on success 🎉
• -FDT_ERR_NOSPACE — there is insufficient free space in the blob to contain the new property value
• -FDT_ERR_BADOFFSET — nodeoffset did not point to FDT_BEGIN_NODE tag
• -FDT_ERR_BADLAYOUT, -FDT_ERR_BADMAGIC, -FDT_ERR_BADVERSION, -FDT_ERR_BADSTATE, -FDT_ERR_BADSTRUCTURE, -FDT_ERR_BADLAYOUT, -FDT_ERR_TRUNCATED — standard meanings

---

🌈 SEE ALSO 🌈

Kernel file to peek at: ./scripts/dtc/libfdt/libfdt.h. the related-pages group chat is huge and she is not sorry:

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_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)

and that’s the page, bestie 🫶 — signed off from the source/version spot ./scripts/dtc/libfdt, dated October 2026, with full fdt_setprop_namelen_string(9) header energy. mwah 💋