rzg2l_oen_write_with_pwpr(9)

πŸ“¦ version 7.3.1, in nixpkgs unstable

πŸ’… rzg2l_oen_write_with_pwpr(9)

okay so bestie, welcome to the Kernel API Manual entry for rzg2l_oen_write_with_pwpr β€” yes that's a mouthful, yes it's iconic, no we're not skipping any of it ✨


πŸŽ€ NAME πŸŽ€

rzg2l_oen_write_with_pwpr β€” literally just writes to the OEN register, but with the PWPR protection handled for you 🫢


🌸 SYNOPSIS 🌸

void rzg2l_oen_write_with_pwpr (struct rzg2l_pinctrl *pctrl , u8 val );

that's it. that's the whole vibe. one shot, no return value, void and proud πŸ’€


πŸ¦‹ ARGUMENTS πŸ¦‹

  • pctrl β€” the pinctrl driver data, aka the main character of this function πŸ‘‘
  • val β€” the value you're writing into the OEN register, no cap, exactly what it says on the tin πŸ“

πŸ’– DESCRIPTION πŸ’–

So here's the tea β˜• β€” this function writes to the OEN register, and it handles the PWPR write protection if the hardware configuration requires it. Like, it checks the vibe and does the protection dance for you, so you don't have to πŸ™ˆ

⚠️ ok but seriously, listen to me on this one: it must be called with pctrl->lock held πŸ”’. Not "should", not "maybe", must. Lock it like you mean it, periodt πŸ’…

🌈 SEE ALSO 🌈

  • the kernel file ./drivers/pinctrl/renesas/pinctrl-rzg2l.c
  • struct rzg2l_register_offsets(9)
  • enum rzg2l_iolh_index(9)
  • struct rzg2l_hwcfg(9)
  • struct rzg2l_pinctrl_pin_settings(9)
  • struct rzg2l_pinctrl_reg_cache(9)

go read them, they're all lowkey useful, iykyk πŸ€“βœ¨


and that's a wrap, bestie πŸŽ€ this whole thing lives in ./drivers/pinctrl/renesas, dated October 2026, and it's giving niche kernel knowledge realness πŸ”₯ take the lock, write the value, slay πŸ’œ

πŸ“¦ where this page comes from