i3c_master_setaasa_locked(9)

💖 NAME 💖

Okay bestie, this is the i3c_master_setaasa_locked(9) page from the Kernel API Manual ✨ — and it's literally about starting a SETAASA procedure (Set All Addresses to Static Address). Iconic address glow-up behavior, no cap 💅.

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✨ SYNOPSIS ✨

int i3c_master_setaasa_locked (struct i3c_master_controller *master );

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🫶 ARGUMENTS 🫶

• master — the I3C master object 🎀

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🦋 DESCRIPTION 🦋

So what this does is send a SETAASA CCC command to set all attached I3C devices' dynamic addresses to their static address. It's giving "everybody go back to your original name tag" energy 💖.

🚨 Important vibe check: this function must be called with the bus lock held in write mode. Like, not optional, bestie — that's the rule.

First, the SETHID CCC command is sent, followed by the SETAASA CCC. Order matters, periodt 🦋.

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🌸 RETURN 🌸

• 0 in case of success 🎉
• a positive I3C error code if the error is one of the official Mx error codes
• a negative error code otherwise 😭

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🎀 SEE ALSO 🎀

The whole crew lives in the kernel file ./drivers/i3c/master.c, and here's every single reference, bestie — no skipping, fr fr 💅:

• 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_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_do_daa(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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And that's the whole page, bestie 🫶. It comes from the Kernel API Manual, sourced from ./drivers/i3c, and it's dated October 2026 — cute little sign-off, mwah 💋✨.