ssb_arch_reg...llback_sprom(9)

💖 NAME 💖

ssb_arch_register_fallback_sprom — the function that registers a method providing a fallback SPROM when no SPROM is found. basically a little safety net for your SPROM-less devices, and yes she ate 🎀

okay so real quick — this whole page lives in the Kernel API Manual, and honestly? it's giving "niche but important" and we're obsessed 💅

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✨ SYNOPSIS ✨

int ssb_arch_register_fallback_sprom (int (*sprom_callback)(struct ssb_bus *bus, struct ssb_sprom *out) );

like, that's the whole vibe right there. one function, one callback, no cap 🌸

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🎀 ARGUMENTS 🎀

• sprom_callback — bestie. this is the callback function. that's the assignment. that's what she does 🫶

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🦋 DESCRIPTION 🦋

So here's the tea, okay? With this function, the architecture implementation may register a callback handler which fills the SPROM data structure. iconic behavior, truly. ✨

But listen — the fallback is only used for PCI based SSB devices, specifically the ones where no valid SPROM can be found in the shadow registers. no valid SPROM? no problem. we got a callback for that 💖

This function is literally made for weird architectures that have a half-assed SSB device hardwired to their PCI bus. yes, that's the actual energy of the original docs and honestly it's giving relatable 😭

💀 Heads up bestie, this is important: it does only work with PCI attached SSB devices. PCMCIA devices currently don't use this fallback. Periodt. No exceptions, no workarounds being implied here.

And also — architectures must provide the SPROM for native SSB devices anyway, so the fallback also isn't used for native devices. so like... don't come for her for something she was never meant to do 🙈

One more thing, and this is kinda the main character energy detail: this function is available for architecture code, only. So it is not exported. she's exclusive. iykyk 👑

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⭐ SEE ALSO ⭐

• Kernel file ./drivers/ssb/sprom.c — go read her, she's right there fr fr 📖

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and that's the whole page bestie, we love a compact queen 🍓

mwah — this little moment comes to you from ./drivers/ssb, dated October 2026, and she'll always be ssb_arch_reg...llback_sprom(9) to us 🧚💜