tpm_cr50_i2c_int_handler(9)

📦 version 7.3.1, in nixpkgs unstable

💖 tpm_cr50_i2c_int_handler (9) — Kernel API Manual 💖

okay so bestie, buckle up, we're reading a real kernel manual page together — this one is tpm_cr50_i2c_int_handler(9) from the Kernel API Manual, and honestly? it's short, it's sweet, and it's lowkey iconic. ✨

🌸 NAME 🌸

tpm_cr50_i2c_int_handler — the cr50 interrupt handler, no cap. that's literally her whole job. 💅

🦋 SYNOPSIS 🦋

irqreturn_t tpm_cr50_i2c_int_handler (int dummy , void *tpm_info );

look at that signature, she's serving ✨function✨. two params, one of them is a whole lie (we'll get there, iykyk).

🎀 ARGUMENTS 🎀

  • dummy — unused parameter 🙈 like... it's literally in the name. it exists, it's there, it does nothing. we respect her for showing up anyway 🫶
  • tpm_info — TPM chip information 💜 the actual useful one. this is the data she cares about.

⭐ DESCRIPTION ⭐

okay so here's the vibe check: the cr50 interrupt handler signals the waiting threads that the interrupt has been asserted 🔥 that's the whole move.

and the plot twist? it does not do any interrupt-triggered processing. nope, none, zero. instead it's used to avoid fixed delays 💀 like yeah, she's an interrupt handler who doesn't handle interrupts — she's just here so we don't have to sit around waiting on hardcoded timers. main character energy honestly 👑

🌈 RETURN 🌈

IRQ_HANDLED — this means the irq was handled by this device 💅 slay. that's the whole return story bestie, she ate and left no crumbs.

🧚 SEE ALSO 🧚

the kernel file lives at ./drivers/char/tpm/tpm_tis_i2c_cr50.c and the struct is tpm_i2c_cr50_priv_data(9) — and here's the whole friend group, all linked up and thriving 💖:

like, that's the whole squad 🫶 go read them too, they're all serving in ./drivers/char/tpm.

and that's the page, bestie 🎀✨ source dir is ./drivers/char/tpm, dated October 2026, and the whole thing is filed under tpm_cr50_i2c_int_handler(9) — mwah, bye, drink some water 💜🍓

📦 where this page comes from