vtpm_proxy_fops_write(9)

✨ NAME ✨

vtpm_proxy_fops_write — bestie, this is the one that writes TPM responses on the 'server side' 🫶

(also hi, you're reading the <pink>vtpm_proxy_fops_write(9)</pink> page from the Kernel API Manual, welcome to the function, it's cozy here)

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🌸 SYNOPSIS 🌸

ssize_t vtpm_proxy_fops_write (struct file *filp , const char __user
*buf , size_t count , loff_t *off );

okay so the way that signature just sits there? iconic. type it exactly like that, spaces and all, no cap 💅

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🎀 ARGUMENTS 🎀

• filp — the file pointer. literally just a file pointer, that's the whole vibe 🦋
• buf — the write buffer. this is where your bytes live before they go out ✨
• count — number of bytes to write. yes bestie, it's counting 🔥
• off — the offset. keeping track of where we're at, main character energy 👑

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💜 RETURN 💜

Number of bytes read or negative error value 😭

ngl the page says "bytes read" on the write function and I'm just the messenger here — I'm not gonna gaslight you and pretend it says something else. copy it as-is, periodt. 💀

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/char/tpm/tpm_vtpm_proxy.c
• vtpm_proxy_fops_read(9)
• vtpm_proxy_fops_undo_open(9)
• vtpmx_ioc_new_dev(9)

go read the read one, it's giving sibling energy 🧚

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okay that's the whole page, you ate that 💅✨ mwah 💖

signed, sealed, shipped from ./drivers/char/tpm — October 2026 — and yeah, this was vtpm_proxy_fops_write(9), bestie, go forth and write those TPM responses 🎀🌸🦋