devm_regulator_irq_helper(9)

📦 version 7.3.1, in nixpkgs unstable

💅 devm_regulator_irq_helper(9) — from the Kernel API Manual, bestie

okay so picture this: it's a kernel API manual page, it's called devm_regulator_irq_helper(9), and it's literally the resource managed registration of an IRQ based regulator event/error notifier. like, that's the whole vibe. no cap. ✨

🌸 NAME 🌸

devm_regulator_irq_helper — resource managed registration of IRQ based regulator event/error notifier. it's giving "I handle your IRQ-driven regulator events AND I clean up after myself." main character energy fr fr 💅

🎀 SYNOPSIS 🎀

void * devm_regulator_irq_helper (struct device *dev , const struct
regulator_irq_desc *d , int irq , int irq_flags , int common_errs , int
*per_rdev_errs , struct regulator_dev **rdev , int rdev_amount );

she takes eight arguments, she's high maintenance, we love her 🫶

🦋 ARGUMENTS 🦋

  • dev — the device whose lifetime the helper's lifetime is bound to. basically they're attached at the hip, devm-style 💖
  • d — the IRQ helper descriptor. the whole blueprint of the operation, iykyk.
  • irq — the IRQ that's used to inform events/errors to be notified. the messenger 🧚
  • irq_flags — extra IRQ flags, and they get OR'ed with the default IRQF_ONESHOT when requesting the (threaded) irq. so like, you're adding sprinkles to the default sprinkle situation ✨
  • common_errs — errors which can be flagged by this IRQ for all rdevs. and here's the tea: when the IRQ is re-enabled, these errors will be cleared from all associated regulators. automatic cleanup, we stan 🌈
  • per_rdev_errs — optional error flag array describing errors specific to only some of the regulators. these errors will be or'ed with common errors. if you pass this, the array should contain rdev_amount flags. can be set to NULL if there are no regulator specific error flags for this IRQ. optional queen behavior 👑
  • rdev — array of pointers to regulators associated with this IRQ.
  • rdev_amount — how many regulators are associated with this IRQ. the headcount bestie 💀

⭐ RETURN ⭐

you get a handle to irq_helper, or an ERR_PTR encoded negative error number. so like... check it, bestie. don't just assume it slayed 🙈

🔥 SEE ALSO 🔥

Kernel file ./drivers/regulator/devres.c, plus the whole friend group:

and that's the page, periodt 🎀

sign-off tea: this whole masterpiece lives in ./drivers/regulator, and it's dated October 2026. the page itself is devm_regulator_irq_helper(9). go read it again, it's iconic 💜🌸
📦 where this page comes from