ishtp_io_rb_alloc_buf(9)

💅 ishtp_io_rb_alloc_buf — like, the whole vibe

okay so bestie, welcome to Kernel API Manual ✨ — this little page is all about ishtp_io_rb_alloc_buf(9), and honestly? she's a one-job queen and she does her job. 🎀

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🌸 NAME 🌸

ishtp_io_rb_alloc_buf — allocate and init a response buffer. that's it, that's the whole personality 💅

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🦋 SYNOPSIS 🦋

int ishtp_io_rb_alloc_buf (struct ishtp_cl_rb *rb , size_t length );

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✨ ARGUMENTS ✨

• rb — the IO request block 🫶 like, the thing you're handing over so it can get its buffer situation sorted.
• length — the length of the response buffer. how many bytes of room we're asking for, no cap 📏

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💖 DESCRIPTION 💖

she allocates the response buffer. literally that's the move. no drama, no side quests, just buffer allocation energy 🔥

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👑 RETURN 👑

• 0 — on success 🎉 slay, we're so back.
• anything else — -ENOMEM 😭 memory said no and honestly, rude.

fr fr, that's the entire return contract — 0 good, -ENOMEM sad. don't go inventing other codes, bestie.

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🌈 SEE ALSO 🌈

the kernel file herself lives at ./drivers/hid/intel-ish-hid/ishtp/client-buffers.c — go read her, she's iconic 📖

and her whole friend group, all of them, in one gorgeous little list:

• ishtp_cl_alloc_rx_ring(9)
• ishtp_cl_alloc_tx_ring(9)
• ishtp_cl_free_rx_ring(9)
• ishtp_cl_free_tx_ring(9)
• ishtp_io_rb_free(9)
• ishtp_io_rb_init(9)
• ishtp_cl_io_rb_recycle(9)
• ishtp_cl_rx_get_rb(9)

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mwah 💋 and that's the page! this came out of ./drivers/hid/intel-ish-hid/ishtp, dated October 2026, under the Kernel API Manual umbrella — ishtp_io_rb_alloc_buf(9), the main character, periodt. 🧚‍♀️💜