v4l2_ctrl_to_v4l2_flash(9)

💅 v4l2_ctrl_to_v4l2_flash(9)

okay so real talk, this is a page straight out of the Kernel API Manual, and honestly? she's a short one, but she eats. bestie, this is your go-to for going from a control back up to the flash object that's holding it, iykyk 🦋

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✨ NAME ✨

v4l2_ctrl_to_v4l2_flash — literally returns a &struct v4l2_flash from the &struct v4l2_ctrl embedded on it. that's it. that's the whole vibe. one job, iconic, no notes 💅

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🌸 SYNOPSIS 🌸

struct v4l2_flash * v4l2_ctrl_to_v4l2_flash (struct v4l2_ctrl *c );

yes, she takes one arg and she gives you back a pointer. main character energy fr fr ✨

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🎀 ARGUMENTS 🎀

• c — pointer to struct v4l2_ctrl. this is the control you're starting from, and she's gonna walk you right on over to the flash struct it lives inside 🫶

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👑 SEE ALSO 👑

first up, the kernel file where all of this lives:

• ./include/media/v4l2-flash-led-class.h

and the whole friend group (go read these too, no cap):

• struct v4l2_flash_ctrl_data(9)
• struct v4l2_flash_ops(9)
• struct v4l2_flash_config(9)
• struct v4l2_flash(9)
• v4l2_subdev_to_v4l2_flash(9)
• v4l2_flash_init(9)
• v4l2_flash_indicator_init(9)
• v4l2_flash_release(9)

lowkey all of these are the supporting cast and they all matter, so don't skip them just because this page is tiny 😭

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and that's the whole page bestie, she's short and sweet 🌈 this cutie lives over in ./include/media, dated October 2026, and she's officially v4l2_ctrl_to_v4l2_flash(9). mwah, go forth and convert your controls 💖🎀