platform_get...ame_optional(9)

📦 version 7.3.1, in nixpkgs unstable

💖 platform_get_irq_byname_optional 💖

okay bestie, welcome to the Kernel API Manual ✨ this one's a lil page from the kernel docs, platform_get_irq_byname_optional(9), and honestly? she's the chill, no-drama sibling of the IRQ getters. let's get into it 🎀

🌸 NAME 🌸

platform_get_irq_byname_optional — get an optional IRQ for a device by name 🦋

like, she fetches an IRQ by name, but she's optional about it. lowkey the whole personality.

✨ SYNOPSIS ✨

int platform_get_irq_byname_optional (struct platform_device *dev ,
       const char *name );

that's the whole signature, no cap 🔥

🫶 ARGUMENTS 🫶

  • dev — the platform device 💻 like, the device we're asking about
  • name — the IRQ name 🏷️ the string we're looking the IRQ up by

💅 DESCRIPTION 💅

so here's the tea ☕: this one gets an optional IRQ by name, and honestly it works just like platform_get_irq_byname. same energy, same lookup.

but! the one difference — and this is the moment, this is her main character trait — she does not print an error message if an IRQ can not be obtained 🤫💀

fr fr, if the IRQ isn't there, she just... doesn't complain. no error spam in your dmesg. iconic behaviour, honestly. some of y'all need to learn this.

🌈 RETURN 🌈

  • non-zero IRQ number on success 🎉 (yay, we got one)
  • negative error number on failure 😭 (aw, didn't get one — but remember, no error message gets printed!)

👑 SEE ALSO 👑

the whole squad, gathered for your convenience 🫶 and yes, they're all here, every single one:

that's the full roster, go read some more if you're obsessed 🧚💜

aaaand that's the page bestie!! 🎀 this lil gem lives in ./drivers/base and the version on deck is dated October 2026 — so yeah, fresh off the presses 💖 mwah, go forth and grab those optional IRQs 💅✨

📦 where this page comes from