usb4_dp_port_set_nrd(9)

📦 version 7.3.1, in nixpkgs unstable

💅 usb4_dp_port_set_nrd — like, the Kernel API Manual page, bestie ✨

okay so this is the usb4_dp_port_set_nrd(9) page from the Kernel API Manual, and it's literally the glow-up-your-DP-adapter function 🎀

🌸 NAME 🌸

usb4_dp_port_set_nrd — Set non-reduced rate and lanes 💖

✨ SYNOPSIS ✨

int usb4_dp_port_set_nrd (struct tb_port *port , int rate , int lanes );

🫶 ARGUMENTS 🫶

  • port — the DP IN adapter, that's the one we're vibing with here 🦋
  • rate — the non-reduced rate, in Mb/s, no cap 📈
  • lanes — the non-reduced lanes, periodt 💅

🔥 DESCRIPTION 🔥

okay so listen 👑 — before the capabilities reduction happens, you can use this function to set the non-reduced values for the DP IN adapter. that's the whole plot. it's giving pre-reduction main character energy 😭✨

🌈 RETURN 🌈

  • 0 — on success, we ate 🍓
  • -EOPNOTSUPP — if the adapter does not support this, and it's literally telling you so 🙈
  • Negative errno — another error occurred 💀

💜 SEE ALSO 💜

the kernel file lives at ./drivers/thunderbolt/usb4.c, and here's the whole friend group of (9) pages — say hi to all of them 🧚:

ngl the SEE ALSO section is longer than the actual function. iconic behaviour, honestly 💀👑

k bye bestie, mwah 💋 — this page came from ./drivers/thunderbolt, dated October 2026, and that's the whole tea ☕🌸

📦 where this page comes from