of_scan_flat_dt_subnodes(9)

💅 of_scan_flat_dt_subnodes(9) 💅

okay bestie, welcome to the Kernel API Manual entry for of_scan_flat_dt_subnodes — it's giving "small but iconic kernel helper" energy, and we're gonna get you comfy with it. 🫶

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✨ NAME ✨

of_scan_flat_dt_subnodes — scan sub-nodes of a node and call the callback on each. fr fr, that's the whole assignment. 💖

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🌸 SYNOPSIS 🌸

okay so here's the exact signature — don't let the function-pointer moment scare you, it's literally fine:

int of_scan_flat_dt_subnodes (unsigned long parent , int (*it)(unsigned long node, const char *uname, void *data) , void *data );

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🎀 ARGUMENTS 🎀

the whole cast, no cap:

• parent — parent node, obvi.
• it — callback function — the callback that gets called on each sub-node, iykyk.
• data — context data pointer. your context data pointer, sitting there being useful. 🍓

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🦋 DESCRIPTION 🦋

This function is used to scan sub-nodes of a node. that's the tea, that's the vibe, that's the entire description. ☕✨

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💜 SEE ALSO 💜

the besties it links to — same exact refs, mwah:

• Kernel file ./drivers/of/fdt.c → unflatten_dt_nodes(9)
• __unflatten_device_tree(9)
• of_fdt_unflatten_tree(9)
• early_init_fdt_scan_reserved_mem(9)
• early_init_fdt_reserve_self(9)
• of_scan_flat_dt(9)
• of_get_flat_dt_subnode_by_name(9)
• of_fdt_is_compatible(9)
• of_flat_dt_is_compatible(9)
• of_flat_dt_match_machine(9)
• early_init_dt_check_for_initrd(9)
• early_init_dt_check_for_elfcorehdr(9)
• early_init_dt_check_for_usable_mem_range(9)
• early_init_dt_check_kho(9)
• unflatten_device_tree(9)
• unflatten_and_copy_device_tree(9)

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xoxo, your Unix bestie 💅 source/version: ./drivers/of · date: October 2026 · page: of_scan_flat_dt_subnodes(9). mwah 💖