dvb_generic_ioctl(9)

💅 dvb_generic_ioctl — from the Kernel API Manual, bestie 🎀

okay so first things first, the manual name is Kernel API Manual and the star of the show is dvb_generic_ioctl(9). yes we're in kernel-land, yes it's giving main character energy, no you don't need to panic ✨

---

🌸 NAME 🌸

dvb_generic_ioctl — the Digital TV close function, used by DVB devices 💖

yes, girl, the manpage literally calls it the close function and i'm not gonna fight it, that's what it says, i'm just the messenger 🫶

---

✨ SYNOPSIS ✨

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

literally that's the whole signature. three args. one return type. slay 💅

---

🦋 ARGUMENTS 🦋

• file — a pointer to struct file. yes, that struct file. the big one. she's a pointer, she's iconic 🌈
• cmd — the ioctl name. this is the whole "which ioctl are we doing today" of it all 👑
• arg — the ioctl argument. it's an unsigned long and it's carrying the payload, no cap 🔥

---

💜 DESCRIPTION 💜

so what's actually happening under the hood? the function checks if a DVB devnode and struct dvbdev.kernel_ioctl are still valid 🧚 and if they are — if the vibe check passes — it calls dvb_usercopy 💖

that's it. that's the whole description. short, sweet, and honestly kind of obsessed with how tidy that is 😭

---

🌟 SEE ALSO 🌟

the whole friend group 💀 grab a snack, this list is long:

• the Kernel file ./include/media/dvbdev.h
• enum dvb_device_type(9)
• struct dvb_adapter(9)
• struct dvb_device(9)
• struct dvbdevfops_node(9)
• dvb_device_get(9)
• dvb_device_put(9)
• dvb_register_adapter(9)
• dvb_unregister_adapter(9)
• dvb_register_device(9)
• dvb_remove_device(9)
• dvb_unregister_device(9)
• dvb_create_media_graph(9)
• dvb_register_media_controller(9)
• dvb_get_media_controller(9)
• dvb_generic_open(9)
• dvb_generic_release(9)
• dvb_usercopy(9)
• dvb_module_probe(9)
• dvb_module_release(9)
• dvb_attach(9)
• dvb_detach(9)

like i said. the whole group chat. read them all, they're all baddies 🌸

---

and that's a wrap, bestie 💜 this page lives over in ./include/media, dated October 2026, and it's the dvb_generic_ioctl(9) page from the Kernel API Manual. mwah 🫶🎀✨