cec_notifier_get_conn(9)

💖 cec_notifier_get_conn — like, the whole notifier situation 💖

okay so bestie, welcome to the Kernel API Manual section for cec_notifier_get_conn(9) — yes that (9) is the section number, it's giving very "I live in the kernel docs" energy and we respect it 🫶

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✨ NAME ✨

cec_notifier_get_conn — find or create a new cec_notifier for the given device and connector tuple 💅

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🦋 SYNOPSIS 🦋

struct cec_notifier * cec_notifier_get_conn (struct device *hdmi_dev ,
const char *port_name );

like literally that's the whole signature, no notes 👑

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🌸 ARGUMENTS 🌸

• hdmi_dev — the device that sends the events 🎀 this is the one doing the most, main character energy fr
• port_name — the connector name from which the event occurs ✨ iykyk

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💜 DESCRIPTION 💜

okay so here's the vibe check on what actually happens when you call this 👇

If a notifier for device dev already exists, then it just increases the refcount and hands you back that notifier. Reuse era, environmentally friendly, we love to see it 🌈

If it doesn't exist? No problem bestie, it allocates a brand new notifier struct and returns a pointer to that new struct. Fresh out of the box, brand new, iconic 🎀

And if the memory could not be allocated, it returns NULL. 😭 that's the "it's giving out of memory" moment, so like, always check your return value ngl

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🌟 SEE ALSO 🌟

• Kernel file ./drivers/media/cec/core/cec-notifier.c — go read the source bestie, it's all there 📖💖

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lowkey important: this returns NULL on allocation failure, so don't just raw-dog the pointer without checking, fr fr 🙈

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and that's the page!! brought to you by the ./drivers/media/cec/core gang, dated October 2026, filed under cec_notifier_get_conn(9) — slay, periodt, go forth and notify 💅✨🍓🧚💜