i3c_master_do_daa(9)

✨ i3c_master_do_daa ✨

okay so this is a page out of the Kernel API Manual, bestie — it's i3c_master_do_daa(9) and it's literally the glow-up moment for your I3C bus 💅

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🎀 NAME 🎀

i3c_master_do_daa — do a DAA (Dynamic Address Assignment) 🦋

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✨ SYNOPSIS ✨

int i3c_master_do_daa (struct i3c_master_controller *master );

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🫶 ARGUMENTS 🫶

• master — the master that's doing the DAA. that's it. that's the whole vibe check 👑

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💖 DESCRIPTION 💖

so what this function does is: it instantiates I3C device objects 🎀 and adds them to the I3C device list. iconic behaviour, no cap.

and the way it gets all the device info? automatically — it retrieves everything using standard CCC commands. you literally don't have to lift a finger, it's giving main character energy fr fr 💅✨

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🔥 RETURN 🔥

it hands back a 0 in case of success — slay 🎉 — and a negative error code otherwise 😭 (we don't love that for us, but that's the deal).

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👑 SEE ALSO 👑

the kernel file is ./drivers/i3c/master.c, and here's the whole squad of related pages — go read them, they're all linked up 🧚💜

• i3c_bus_maintenance_lock(9)
• i3c_bus_maintenance_unlock(9)
• i3c_bus_normaluse_lock(9)
• i3c_bus_normaluse_unlock(9)
• i3c_master_queue_hotjoin(9)
• i3c_master_send_ccc_cmd_locked(9)
• i3c_master_get_free_addr(9)
• i3c_master_setaasa_locked(9)
• i3c_master_entdaa_locked(9)
• i3c_master_enec_disec_locked(9)
• i3c_master_disec_locked(9)
• i3c_master_enec_locked(9)
• i3c_master_defslvs_locked(9)
• i3c_master_reattach_i3c_dev_locked(9)
• i3c_master_has_wakeup_enabled_devs(9)
• i3c_master_dma_map_single(9)
• i3c_master_dma_unmap_single(9)
• i3c_master_set_info(9)
• i3c_master_bus_init(9)
• __i3c_master_add_i3c_dev_locked(9)
• i3c_master_add_i3c_dev_locked(9)
• i3c_master_do_daa_ext(9)
• i3c_master_queue_ibi(9)
• i3c_generic_ibi_free_pool(9)
• i3c_generic_ibi_alloc_pool(9)
• i3c_generic_ibi_get_free_slot(9)
• i3c_generic_ibi_recycle_slot(9)
• i3c_master_register(9)
• i3c_master_unregister(9)
• i3c_dev_disable_ibi_locked(9)
• i3c_dev_enable_ibi_locked(9)
• i3c_dev_request_ibi_locked(9)
• i3c_dev_free_ibi_locked(9)

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bestie this page lives in ./drivers/i3c, it's dated October 2026, and the whole thing is i3c_master_do_daa(9) — that's the tea, go forth and assign those dynamic addresses 💅💖🌸