v4l2_async_...wnode_sensor(9)

💅 v4l2_async_nf_parse_fwnode_sensor ✨

okay so bestie, welcome to the Kernel API Manual 🎀 — this is the page for v4l2_async_...wnode_sensor(9) and it's lowkey a little gem. sit down, grab a strawberry smoothie 🍓, and let's get into it.

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🌸 NAME 🌸

v4l2_async_nf_parse_fwnode_sensor — the function that parses the common references on sensors for async sub-devices. it's giving matchmaker energy fr fr 💖

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⭐ SYNOPSIS ⭐

int v4l2_async_nf_parse_fwnode_sensor (struct device *dev , struct
v4l2_async_notifier *notifier );

that's the whole signature, no cap. 🫶

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🦋 ARGUMENTS 🦋

• dev — the device node whose properties get parsed for references. basically the main character we're reading the vibe of 👑
• notifier — the async notifier where the async subdevs will be added. this is the group chat they're all joining 💬

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💜 DESCRIPTION 💜

so what it does: it parses the common sensor properties for remote devices related to the sensor, and then sets up async sub-devices for them. iconic behaviour honestly ✨

⚠️ okay this part matters, don't skip it: any notifier populated using this function must be released with a call to v4l2_async_nf_release after it has been unregistered and the async sub-devices are no longer in use. and yes — even in the case the function returned an error. so like, don't ghost the cleanup, bestie, it's not cute 😭

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🌈 RETURN 🌈

• 0 — success, slay 💅
• -ENOMEM — memory allocation failed 🫠
• -EINVAL — property parsing failed 🙈

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🔥 SEE ALSO 🔥

kernel file ./drivers/media/v4l2-core/v4l2-fwnode.c — go read it, iykyk 📖

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okay that's the whole page!! this one lives in ./drivers/media/v4l2-core, dated October 2026, and it's literally v4l2_async_...wnode_sensor(9) — go forth and parse those fwnode sensors, bestie 🧚💜 periodt.