omap4_cminst...module_ready(9)

📦 version 7.3.1, in nixpkgs unstable

💅 omap4_cminst_wait_module_ready — a Kernel API Manual moment

okay bestie so you're reading the Kernel API Manual page for omap4_cminst...module_ready(9) and honestly? this one is a whole vibe check on a hardware module. let's get into it 🫶

✨ NAME ✨

omap4_cminst_wait_module_ready — literally the function that waits for a module to be in 'func' state. that's it, that's the job. no cap. 🌸

✨ SYNOPSIS ✨

int omap4_cminst_wait_module_ready (u8 part , s16 inst , u16
clkctrl_offs , u8 bit_shift );

it returns an int, and it takes four lil arguments — say hi to them below 👑<br>(they're also listed under ARGUMENTS in the original, same info, same order, we don't gatekeep)

✨ ARGUMENTS ✨

  • part — the PRCM partition ID that the CM_CLKCTRL register exists in. so like, which neighbourhood the register lives in 🏡
  • inst — CM instance register offset, aka the *_INST macro. it's giving "which house on the street" 🦋
  • clkctrl_offs — the Module clock control register offset, aka the *_CLKCTRL macro. which room inside, iykyk 💅
  • bit_shift — bit shift for the register — and heads up bestie, it's ignored for OMAP4+. literally does nothing there 🙈

✨ DESCRIPTION ✨

so the whole point: wait for the module IDLEST to be functional. that's the wait. ⏳

but here's the tea — if the idle state is in any of the non functional states (trans, idle or disabled), the module and thus the sysconfig cannot be accessed, and that will probably lead to an "imprecise external abort" 😭💀

fr fr do not skip the wait. that abort is not the cute kind of plot twist.

✨ SEE ALSO ✨

sibling functions, all in the kernel file ./arch/arm/mach-omap2/cminst44xx.c — go say hi, they're all (9) section icons 🎀

and that's the whole page, bestie 🌈 this came out of ./arch/arm/mach-omap2 and it's dated October 2026 — yeah, a whole month, eating. slay, drink water, and don't poke a module in a non functional state 💖✨🍓

📦 where this page comes from