v4l2_async_nf_add_i2c(9)

💅 v4l2_async_nf_add_i2c(9) — Kernel API Manual ✨

okay bestie, welcome to the Kernel API Manual, the one and only place where this page lives. today's main character is v4l2_async_nf_add_i2c, and honestly? she's a whole vibe. let's get into it 🎀

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🌸 NAME 🌸

v4l2_async_nf_add_i2c — allocate and add an i2c async subdev to the notifier's master asc_list. no cap, that's literally her whole job 💖

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✨ SYNOPSIS ✨

v4l2_async_nf_add_i2c (notifier , adapter , address , type );

like yeah, four things go in. she's not complicated, she's just precise 🫶

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🦋 ARGUMENTS 🦋

• notifier — pointer to struct v4l2_async_notifier. this is your main character struct, the one holding it all together ✨
• adapter — I2C adapter ID to be matched. iykyk which bus you're on 🔥
• address — I2C address of the connection to be matched. the exact spot you're looking for 📍
• type — type of the driver's async connection struct. and here's the ✨important✨ part: the struct v4l2_async_connection shall be the first member of the driver's async connection struct, i.e. both begin at the same memory address. that's not a suggestion, bestie, that's a requirement — they gotta start at the exact same memory address or it's giving undefined chaos 💀

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💜 DESCRIPTION 💜

same as v4l2_async_nf_add_fwnode but for I2C matched connections. that's it, that's the whole tea 🍓 she's the I2C-flavoured sibling of the fwnode version, and she ate 👑

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👑 SEE ALSO 👑

• Kernel file ./include/media/v4l2-async.h
• enum v4l2_async_match_type(9)
• struct v4l2_async_match_desc(9)
• struct v4l2_async_connection(9)
• struct v4l2_async_notifier_operations(9)
• struct v4l2_async_notifier(9)
• struct v4l2_async_subdev_endpoint(9)
• v4l2_async_debug_init(9)
• v4l2_async_nf_init(9)
• v4l2_async_subdev_nf_init(9)
• v4l2_async_nf_add_fwnode(9)
• v4l2_async_nf_add_fwnode_remote(9)
• v4l2_async_subdev_endpoint_add(9)
• v4l2_async_connection_unique(9)
• v4l2_async_nf_register(9)
• v4l2_async_nf_unregister(9)
• v4l2_async_nf_cleanup(9)
• v4l2_async_register_subdev(9)
• v4l2_async_register_subdev_sensor(9)
• v4l2_async_unregister_subdev(9)

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bestie, that's the whole friend group right there — go read them, they're all iconic in their own way 🌈

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and that's a wrap, babe 🧚 this page came straight out of ./include/media, dated October 2026, and it's filed under v4l2_async_nf_add_i2c(9). mwah 💋 periodt 💅