fdt_appendprop_cell(9)

🦋 fdt_appendprop_cell — append a single cell value to a property 🦋

okay bestie, so this one lives in the Kernel API Manual and it's genuinely one of the chillest little functions in libfdt. It's an alias, it appends a number, that's the whole vibe. Slay. ✨

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✨ SYNOPSIS ✨

int fdt_appendprop_cell (void *fdt , int nodeoffset , const char *name ,
uint32_t val );

like, yes, that's the whole signature, no cap 💅

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🎀 ARGUMENTS 🎀

• fdt — pointer to the device tree blob 💖 this is your tree, your main character
• nodeoffset — offset of the node whose property you wanna change
• name — name of the property you wanna change
• val — a 32-bit integer value to append to the property (native endian, so don't come at it with endian shenanigans, it's doing its own thing)

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🌸 DESCRIPTION 🌸

So here's the tea: this is literally just an alternative name for fdt_appendprop_u32. That's it. That's the function. Same energy, different nickname. Not me finding out some of these are just aliases 😭

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⭐ RETURN ⭐

• 0 on success 🎉 she ate
• a negative libfdt error value otherwise 💀 so like, check your return value, please, i'm begging

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👑 SEE ALSO 👑

The header where all the lore lives: Kernel file ./scripts/dtc/libfdt/libfdt.h. Then the whole extended friend group, in the order they showed up to the party 🫶

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_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)

ngl if you're here you probably actually wanted fdt_appendprop_u32(9) — same function, and honestly the _u32 name is the one that gets invited to more parties. iykyk 💜

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okay that's the whole page bestie, go append your cells 🌈 this lil writeup came to you from ./scripts/dtc/libfdt, dated October 2026, filed under fdt_appendprop_cell(9) — mwah, stan, bye 🍓🧚