sa1111_probe(9)

📦 version 7.3.1, in nixpkgs unstable

💅 sa1111_probe — kernel API manual, but make it make sense

okay so this is sa1111_probe(9), bestie — a Kernel API Manual page, and honestly? it's short, it's sweet, and it's the literal first thing you gotta do before touching anything SA1111-related. no cap. let's get into it 🫶

✨ NAME ✨

sa1111_probe — probe for a single SA1111 chip. one chip. singular. that's the whole vibe 💅

🌸 SYNOPSIS 🌸

int sa1111_probe (struct platform_device *pdev );

copy it exactly like that, okay? the spacing before that last ) is iconic and we do not touch it 🙈

🎀 ARGUMENTS 🎀

  • pdev — the platform device. that's it, that's the whole argument list. she's low maintenance ✨

🦋 DESCRIPTION 🦋

okay so the whole job is: probe for a SA1111 chip. that's the assignment. that's what she does 🔥

but here's the part you cannot skip, and I mean it — this must be called before any other SA1111-specific code. like, before. before before. she's the main character and everyone else is waiting on her entrance, periodt 👑

💖 RETURN 💖

so she returns an int, and depending on how it goes, you get one of these bad boys:

  • -ENODEV — device not found 😭 the chip said "not today"
  • -ENOMEM — memory allocation failure 💀 ran out of memory, tragic, honestly
  • -EBUSY — physical address already marked in-use 🚫 someone else called dibs
  • -EINVAL — no platform data passed 🙈 you forgot to pass the goods
  • 0 — successful ⭐ slay! she ate! this is the one you want

🌈 SEE ALSO 🌈

the kernel file lives at ./arch/arm/common/sa1111.c, and once you've done the whole probe thing, go hang out with her friends:

the whole squad is there, iykyk 💜

real talk though: if you skip calling sa1111_probe first, everything downstream is gonna have a bad time. this is not a drill, bestie 🚨

okay that's the whole page, you're caught up 💖 go forth and probe responsibly. this little gem comes to you from ./arch/arm/common, dated October 2026 — yeah, from the future, no big deal, she's just built different ✨🎀🦋

📦 where this page comes from