tpm_chip_stop(9)

💅 tpm_chip_stop(9) — like, the Kernel API Manual page, bestie 🎀

Okay so we're in the Kernel API Manual today and the vibe is: turning a TPM off. That's it. That's the whole thing. Let's get into it ✨

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🌸 NAME 🌸

tpm_chip_stop — power off the TPM 🫶

Like literally, that's what it does. Off. Lights out. Bye 👋

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🦋 SYNOPSIS 🦋

void tpm_chip_stop (struct tpm_chip *chip );

No cap, that's the whole signature. Void return, one pointer in, zero drama 💅

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🍓 ARGUMENTS 🍓

• chip — a TPM chip to use 💖 that's the one you're powering off, bestie. Pick your fave chip and send it to sleep.

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✨ RETURN ✨

So here's the thing — it's void, but the manpage still lists what to expect, and we're keeping all of it 🎀

• The response length — OK ✅
• -errno — a system error 💀

Ngl, an error path on a power-off function is giving main character energy. Just know it's there, iykyk 🙈

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👑 SEE ALSO 👑

Kernel file ./drivers/char/tpm/tpm-chip.c — go read it, it's iconic 🌈

Then the whole friend group of related functions, fr fr:

• tpm_chip_start(9)
• tpm_try_get_ops(9)
• tpm_put_ops(9)
• tpm_default_chip(9)
• tpm_dev_release(9)
• tpm_class_shutdown(9)
• tpm_chip_alloc(9)
• tpmm_chip_alloc(9)

🫶 friendly heads up: that last one really is spelled tpmm_chip_alloc(9) with two m's. Not a typo, not me being chaotic — it's copied exactly, so don't come for me 😭

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okay that's the page, you ate that, periodt 💅✨

This little cutie lives in ./drivers/char/tpm and it was stamped October 2026 — mwah, love that for us 🎀💖