spear_smi_wait_till_ready(9)

📦 version 7.3.1, in nixpkgs unstable

✨ spear_smi_wait_till_ready ✨

okay so bestie, this is a page from the Kernel API Manual (section 9, kernel-space vibes only 💅) and it's about one tiny but iconic helper — spear_smi_wait_till_ready. she's the one who sits there and waits for the flash to be done being busy. no cap, she's the patience of the group chat 🫶

🌸 NAME 🌸

spear_smi_wait_till_ready — wait till flash is ready 💖

like literally that's her whole job. she waits. until the flash is ready. queen behavior 👑

🦋 SYNOPSIS 🦋

int spear_smi_wait_till_ready (struct spear_smi *dev , u32 bank ,
       unsigned long timeout );

🎀 ARGUMENTS 🎀

  • dev — the structure of SMI information. this is the whole situation, the main character of the struct world 🌈
  • bank — the flash corresponding to this bank. yes, this bank specifically. gotta be specific, iykyk ✨
  • timeout — the timeout for the busy wait condition. your patience budget, fr fr ⏳

💜 DESCRIPTION 💜

so what she does: this routine checks for the WIP (write in progress) bit in the Status register. that's it. that's the whole mission 🎯

if it's successful, the routine returns 0 — slay, we're ready, go off 💅

else it returns -EBUSY. translation: still busy bestie, come back later 😭💀

ngl the -EBUSY return is the "leave me on read" of kernel error codes. not a crash, not a bug — just not yet 🙈

🔥 SEE ALSO 🔥

Kernel file ./drivers/mtd/devices/spear_smi.c

like, the whole squad is linked above — go read them too, they ate 💖✨

💫 and that's the page! brought to you by ./drivers/mtd/devices, dated October 2026, and of course the manual name spear_smi_wait_till_ready(9) — mwah, stan her, she waits so you don't have to 🎀🦋💅

📦 where this page comes from