pvr_cr_poll_reg32(9)

📦 version 7.3.1, in nixpkgs unstable

💅 pvr_cr_poll_reg32(9) — the kernel API manual, bestie edition 🎀

Okay so this is the page for pvr_cr_poll_reg32, straight out of the Kernel API Manual. Buckle up, it's a polling function and it's lowkey iconic.

✨ NAME ✨

pvr_cr_poll_reg32 — the way you wait for a 32-bit register to match a given value... by polling. Yes bestie, we're watching it. Patiently. In a loop. 👀

🌸 SYNOPSIS 🌸

int pvr_cr_poll_reg32 (struct pvr_device *pvr_dev , u32 reg_addr , u32
reg_value , u32 reg_mask , u64 timeout_usec );

That's the whole vibe. Five args, one int coming back at you. 🫶

🦋 ARGUMENTS 🦋

  • pvr_dev — your target PowerVR device 💖 like, the actual GPU bestie we're stalking.
  • reg_addr — address of the register. The exact spot. No guessing. 📍
  • reg_value — the expected register value, after masking. So it's the value you're hoping to see once the mask does its thing ✨
  • reg_mask — the mask of bits that are valid for comparison with reg_value. Everything else? Not invited to the comparison party 🙈
  • timeout_usec — how long you're willing to wait, in us. That's microseconds, queen. ⏳

🔥 RETURN 🔥

  • 0 on success — slay, it matched, we're done here 👑
  • -ETIMEDOUT on timeout — it never matched and honestly? rude. 💀

🌈 SEE ALSO 🌈

Everything else in the PowerVR cinematic universe, all from the kernel file ./drivers/gpu/drm/imagination/pvr_device.h:

Reading list longer than my screen time report ngl 😭 but every single one of them ate, fr fr.

And that's the page, bestie! 💅✨ This little beauty lives in ./drivers/gpu/drm/imagination, dated October 2026 — so mark your calendars and stan the GPU driver docs. Mwah 🫶🎀

📦 where this page comes from