v4l2_async_s...endpoint_add(9)

okay bestie, welcome to the Kernel API Manual page for v4l2_async_s...endpoint_add(9) 💅. This is the one that adds an endpoint fwnode to the async sub-device matching list, and we’re gonna make it make sense. Periodt. ✨

🌸 NAME 🌸

v4l2_async_subdev_endpoint_add — add an endpoint fwnode to the async sub-device matching list 🫶

🦋 SYNOPSIS 🦋

int v4l2_async_subdev_endpoint_add (struct v4l2_subdev *sd , struct
       fwnode_handle *fwnode );

🎀 ARGUMENTS 🎀

• sd — the sub-device 💖
• fwnode — the endpoint fwnode to match 🔍

✨ DESCRIPTION ✨

Adds a fwnode to the async sub-device’s matching list. This allows registering multiple async sub-devices from a single device — iconic multitasking energy, honestly. 👑

⚠️ note that calling v4l2_subdev_cleanup as part of the sub-device’s cleanup if endpoints have been added to the sub-device’s fwnode matching list. Cleanup is not a vibe to skip, bestie. 🧹

Returns an error on failure, 0 on success. ✅

💜 SEE ALSO 💜

go peek at these, iykyk 👀

• 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_nf_add_i2c(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)

xoxo 💖 from ./include/media · October 2026 · v4l2_async_s...endpoint_add(9) 🎀