STRUCT OF_CHANGESET_ENTRY(9)

💅 struct of_changeset_entry(9)

okay so this is the struct of_changeset_entry(9) page from the Kernel API Manual, and honestly? it's a little baddie of a struct that quietly holds everything together. let's get into it 🫶

---

✨ NAME ✨

struct of_changeset_entry — holds a changeset entry. that's it, that's the whole name, no notes 💅

---

🌸 SYNOPSIS 🌸

struct of_changeset_entry {
    struct list_head node;
    unsigned long action;
    struct device_node *np;
    struct property *prop;
    struct property *old_prop;
};

---

🎀 Members 🎀

• node — the list_head for the log list. it's the little link that keeps this entry chained up with all its siblings.
• action — the notifier action. this is what went down, recorded as an unsigned long.
• np — pointer to the device node that got affected. main character node, honestly.
• prop — pointer to the property that got affected.
• old_prop — holds a pointer to the original property. yes bestie, we keep the receipt 📝

---

🦋 Description 🦋

so every single modification of the device tree that happens during a changeset gets held in a list of of_changeset_entry structures. literally every one, no skipping.

and why do we do this? because that way we can recover from a partial application, or we can revert the changeset. it's giving "undo button but make it kernel-level" 😭✨

ngl this is the safety net of the whole operation — if the changeset goes sideways mid-apply, these entries are your way back.

---

🔥 SEE ALSO 🔥

Kernel file ./include/linux/of.h and friends — the whole squad, no cap:

• of_node_init(9)
• of_machine_is_compatible(9)
• of_parse_phandle(9)
• of_parse_phandle_with_args(9)
• of_parse_phandle_with_fixed_args(9)
• of_parse_phandle_with_optional_args(9)
• of_phandle_args_equal(9)
• of_property_count_u8_elems(9)
• of_property_count_u16_elems(9)
• of_property_count_u32_elems(9)
• of_property_count_u64_elems(9)
• of_property_read_string_array(9)
• of_property_count_strings(9)
• of_property_read_string_index(9)
• of_property_present(9)
• of_property_read_u8_array(9)
• of_property_read_u16_array(9)
• of_property_read_u32_array(9)
• of_property_read_u64_array(9)
• struct of_changeset(9)
• of_device_is_system_power_controller(9)
• of_have_populated_dt(9)

---

and that's the whole page, bestie — stay iconic, keep your entries linked, and remember: always hold onto old_prop 💜

this cutie lives in ./include/linux, dated October 2026, and it goes by struct of_changeset_entry(9). mwah 💋