radeon_switc...o_can_switch(9)

📦 version 7.3.1, in nixpkgs unstable

✨ radeon_switcheroo_can_switch(9) ✨

okay so first things first, the full title is radeon_switcheroo_can_switch(9) and it lives in the Kernel API Manual (section 9, the fancy driver-internals club 💅). Strap in bestie, this one's small but mighty.

🎀 NAME 🎀

radeon_switcheroo_can_switch — literally just peeks in and tells you if the switcheroo state is allowed to change 👀

🦋 SYNOPSIS 🦋

bool radeon_switcheroo_can_switch (struct pci_dev *pdev );

That's it. That's the whole vibe check. It hands you back a bool 🫶

🌸 ARGUMENTS 🌸

  • pdev — a pci dev pointer, aka the little handle that says which PCI device we're talking about 💖

⭐ DESCRIPTION ⭐

So this function is a callback for the switcheroo driver — like, the switcheroo driver calls it up and is like "hey bestie, can we change things?" and this is the one who answers 📞

What it actually does: it checks if the switcheroo state can be changed. That's the whole job, no cap.

  • it returns true if the state can be changed ✅
  • it returns false if it can't ❌

And that's genuinely it, she's a short queen 👑✨

🌈 SEE ALSO 🌈

The kernel file this comes from is:

./drivers/gpu/drm/radeon/radeon_device.c

and here's the whole friend group, the entire radeon extended universe, no gatekeeping fr fr 💜:

💀 friendly reminder: the original manual spells it "Check of the switcheroo state can be changed" — yes, there's a typo in the source, and yes we're leaving the meaning exactly as-is. iykyk 😭

✨ that's the whole page!! ✨ this cutie ships out of ./drivers/gpu/drm/radeon, dated October 2026, and the page itself is signed radeon_switc...o_can_switch(9) 🎀 bye bestie, go check some switcheroo state 🦋💖

📦 where this page comes from