v4l2_device_put(9)

💅 v4l2_device_put — like, the Kernel API Manual, but make it cute

okay so bestie, welcome to v4l2_device_put(9), straight out of the Kernel API Manual. it's a tiny little function with one job and honestly? it ate. let's get into it 🎀

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✨ NAME ✨

v4l2_device_put — bestie, it puts a V4L2 device reference. that's the whole vibe. it's putting it down. releasing it. letting it go 🦋

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🌸 SYNOPSIS 🌸

int v4l2_device_put (struct v4l2_device *v4l2_dev );

look at her. one argument, returns an int. lowkey iconic of her tbh 💅

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🫶 ARGUMENTS 🫶

• v4l2_dev — a pointer to struct v4l2_device. yeah. just a pointer. that's it. that's the whole argument. no cap ✨

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💖 DESCRIPTION 💖

so here's the tea, bestie: this is an ancillary routine — like a little sidekick function, not the main character — and its whole purpose in life is to decrement the usage for the struct v4l2_device that v4l2_dev is pointing at. that's it. that's the job. one ref down, nothing more, nothing less 🔥

she's the counterpart to getting a reference, so like… you grabbed one, now you're putting it back. balance. harmony. the way that a refcount should be 🌈

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👑 SEE ALSO 👑

okay this list is long and honestly kind of giving family reunion, but here's the whole crew, no skipping, fr fr:

• the kernel file ./include/media/v4l2-device.h, plus struct v4l2_device(9)
• v4l2_device_get(9)
• v4l2_device_register(9)
• v4l2_device_set_name(9)
• v4l2_device_disconnect(9)
• v4l2_device_unregister(9)
• v4l2_device_register_subdev(9)
• v4l2_device_unregister_subdev(9)
• __v4l2_device_register_subdev_nodes(9)
• v4l2_device_register_subdev_nodes(9)
• v4l2_device_register_ro_subdev_nodes(9)
• v4l2_subdev_notify(9)
• v4l2_device_supports_requests(9)
• v4l2_device_for_each_subdev(9)
• __v4l2_device_call_subdevs_p(9)
• __v4l2_device_call_subdevs(9)
• __v4l2_device_call_subdevs_until_err_p(9)
• __v4l2_device_call_subdevs_until_err(9)
• v4l2_device_call_all(9)
• v4l2_device_call_until_err(9)
• v4l2_device_mask_call_all(9)
• v4l2_device_mask_call_until_err(9)
• v4l2_device_has_op(9)
• v4l2_device_mask_has_op(9)

like, twenty-four entries. she knows everyone. main character energy fr 💀✨

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ngl bestie, double-check your refcounts before you call her — putting a reference you never got is a whole mess, and nobody wants that vibe check 🫶

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and that's the page!! 💜 this lil gem lives in ./include/media, dated October 2026, and it's the v4l2_device_put(9) page out of the Kernel API Manual. mwah, go forth and decrement responsibly 😭🎀