i2c_del_adapter(9)

💅 i2c_del_adapter(9) — Kernel API Manual ✨

okay so bestie, welcome to the glow-up edition of the i2c_del_adapter(9) page from the Kernel API Manual. yes we're doing kernel docs now, and honestly? we're slaying it. 🎀

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🌸 NAME 🌸

i2c_del_adapter — unregister I2C adapter, aka the "it's not you it's me" moment for your I2C adapter 💔✨

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🦋 SYNOPSIS 🦋

void i2c_del_adapter (struct i2c_adapter *adap );

literally that's it. one function, one argument, zero drama (well, mostly). 🫶

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🍓 ARGUMENTS 🍓

• adap — the adapter being unregistered. yeah that's your main character right there, the one getting retired 👑

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⭐ CONTEXT ⭐

can sleep 😴💤 — no cap, this one is allowed to nap, so don't go calling it from somewhere that forbids sleeping, iykyk.

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🔥 DESCRIPTION 🔥

so what does it actually do? it unregisters an I2C adapter that was previously registered by i2c_add_adapter or i2c_add_numbered_adapter. that's the whole vibe check. you put the adapter in, now you're taking it back out — the way that reverse-uno card is just iconic 🙈💅

fair warning bestie, only unregister adapters that were actually registered through i2c_add_adapter or i2c_add_numbered_adapter — that's the pair-up, don't be out here breaking the matching set 😭

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💖 SEE ALSO 💖

kernel file ./drivers/i2c/i2c-core-base.c and its absolutely stacked friend group, fr fr:

• i2c_verify_client(9)
• i2c_adapter_lock_bus(9)
• i2c_adapter_trylock_bus(9)
• i2c_adapter_unlock_bus(9)
• i2c_new_client_device(9)
• i2c_unregister_device(9)
• i2c_find_device_by_fwnode(9)
• i2c_new_dummy_device(9)
• devm_i2c_new_dummy_device(9)
• i2c_new_ancillary_device(9)
• i2c_verify_adapter(9)
• i2c_handle_smbus_host_notify(9)
• i2c_add_adapter(9)
• i2c_add_numbered_adapter(9)
• devm_i2c_add_adapter(9)
• i2c_find_adapter_by_fwnode(9)
• i2c_get_adapter_by_fwnode(9)
• i2c_parse_fw_timings(9)
• i2c_del_driver(9)
• __i2c_transfer(9)
• i2c_transfer(9)
• i2c_transfer_buffer_flags(9)
• i2c_get_device_id(9)
• i2c_client_get_device_id(9)
• i2c_get_dma_safe_msg_buf(9)
• i2c_put_dma_safe_msg_buf(9)

like, that's a whole squad 💜 literally every single one, we did not skip a single bestie, periodt.

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✨ that's the whole page babes ✨ this lil drop came from ./drivers/i2c and it's stamped October 2026 🗓️💖 go forth and unregister responsibly, mwah 🧚🌸