v4l2_kioctl(9)

✨ NAME ✨

okay so bestie, welcome to the v4l2_kioctl(9) page in the Kernel API Manual 💅 this one is short and sweet: v4l2_kioctl is a typedef used to pass an ioctl handler. that’s the whole plot. no cap 🎀

🌸 SYNOPSIS 🌸

the signature is giving “just pass the handler through” energy:

long v4l2_kioctl (struct file *file , unsigned int cmd , void *arg );

🎀 ARGUMENTS 🎀

• file — pointer to struct file. literally the file pointer, bestie 📁
• cmd — ioctl name. that’s the command vibe ⭐
• arg — ioctl argument. the payload, the little extra 🍓

🦋 SEE ALSO 🦋

okay so if you wanna keep reading, these are the linked icons 👑

• Kernel file ./include/media/v4l2-ioctl.h 👀
• struct v4l2_ioctl_ops(9)
• v4l2_norm_to_name(9)
• v4l2_video_std_frame_period(9)
• v4l2_video_std_construct(9)
• v4l_video_std_enumstd(9)
• v4l_printk_ioctl(9)
• var v4l2_field_names(9)
• var v4l2_type_names(9)
• v4l2_compat_ioctl32(9)
• video_usercopy(9)
• video_ioctl2(9)

mwah 💋 — from ./include/media, dated October 2026, page v4l2_kioctl(9) ✨🫶