i2c_new_slav...otify_device(9)

💖 i2c_new_slav...otify_device(9) 💖

okay so this is a page straight out of the Kernel API Manual and it's lowkey serving the SMBus host-notify realness — let's get into it bestie 🫶

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✨ NAME ✨

i2c_new_slave_host_notify_device — get a client for SMBus host-notify support. that's the whole assignment, and it ate 💅

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🌸 SYNOPSIS 🌸

struct i2c_client * i2c_new_slave_host_notify_device (struct i2c_adapter
*adapter );

like yes, it takes one thing and gives you back a struct i2c_client *. main character energy fr 🔥

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🎀 ARGUMENTS 🎀

• adapter — the target adapter. that's it. that's the one. the adapter you're pointing at 👑 (copy it exactly, bestie, no renaming)

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🦋 CONTEXT 🦋

can sleep 😴 — and ngl that's important, because this whole call is allowed to just vibe there and wait. no "don't sleep in atomic context" panic era, we're chilling 🌸

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💜 DESCRIPTION 💜

so what's the actual tea? this sets up handling of the SMBus host-notify protocol on a given I2C bus segment ✨

and how does it do all that? the handling is done by creating a device and its callback, and handling data received via the SMBus host-notify address (0x8) 📬 — like that address is literally where the mail comes in, iykyk

this returns the client, which should be ultimately freed using i2c_free_slave_host_notify_device — so yes bestie, you gotta clean up after yourself, we do NOT leave clients lying around 🙈 — or it returns an ERRPTR to indicate an error 💀

so real talk: check your return value. if it's an ERRPTR, that's an oops, not a client. do not pass go, do not dereference 🌈

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⭐ SEE ALSO ⭐

• Kernel file ./drivers/i2c/i2c-smbus.c 🍓
• i2c_handle_smbus_alert(9)
• i2c_free_slave_host_notify_device(9) — the cleanup bestie you literally need, go read it 🫶

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and that's the whole page, no cap 🧚

this cute little number lives in the kernel source under ./drivers/i2c, and it's dated October 2026 — so like, future icon behavior honestly 👑✨ hope that cleared stuff up, mwah 💖 i2c_new_slav...otify_device(9) out! 💅