adv748x_csi2_register_link(9)

📦 version 7.3.1, in nixpkgs unstable

okay so bestie, welcome to the Kernel API Manual entry for adv748x_csi2_register_link. this one's a little glue function in the adv748x csi2 world and it is lowkey iconic for how much it does with so few lines 👑

✨ NAME ✨

adv748x_csi2_register_link — Register and link internal entities 🫶

🦋 SYNOPSIS 🦋

int adv748x_csi2_register_link (struct adv748x_csi2 *tx , struct
       v4l2_device *v4l2_dev , struct v4l2_subdev *src , unsigned int src_pad ,
       bool enable );

that's the whole signature, no cap — literally copy it exactly like that if you're calling it 💯

🎀 ARGUMENTS 🎀

  • tx — the CSI2 private entity 💫 this is the one getting linked to, bestie.
  • v4l2_dev — the Video registration device 🌈 the official grown-up registry of the party.
  • src — the Source subdevice to establish link 🔗 you know, the one doing the sourcing.
  • src_pad — Pad number of source to link to this tx 🧚 pads are like the little connection points, and this is the number of the one we're plugging in.
  • enable — Link enabled flag 🌸 a bool, so it's basically a yes/no vibe check on the link.

💖 DESCRIPTION 💖

so what does it actually do, you ask? two things, and they're both very much giving setup energy:

  1. Ensure that the subdevice is registered against the v4l2_device ✅ like, make sure it's actually in the system before we start linking stuff.
  2. Link the source pad to the sink pad of the CSI2 bus entity 🔥 source pad → sink pad, that's the bridge, that's the connection, that's the moment.

that's it. that's the function. she's simple, she's necessary, she eats every time 💅

👑 SEE ALSO 👑

  • Kernel file ./drivers/media/i2c/adv748x/adv748x-csi2.c 📂 — that's where the source lives, iykyk.

⭐ sign-off ⭐

this page came to you from the directory ./drivers/media/i2c/adv748x, dated October 2026 🌙 and titled adv748x_csi2_register_link(9) — so now you know exactly where it's from, periodt 💜🦋✨

📦 where this page comes from