ocs_hcu_get...mediate_data(9)

✨ ocs_hcu_get_intermediate_data — get intermediate data, bestie ✨

Okay so real quick before we dive in: this lil page lives in the Kernel API Manual (that's the manual name, cute right?), and the page itself is ocs_hcu_get...mediate_data(9) — yes the header truncates it, she's just being dramatic, the actual function is ocs_hcu_get_intermediate_data 💅

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🌸 NAME 🌸

ocs_hcu_get_intermediate_data — literally just get intermediate data 🎀

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🦋 SYNOPSIS 🦋

int ocs_hcu_get_intermediate_data (struct ocs_hcu_dev *hcu_dev , struct
ocs_hcu_idata *data , enum ocs_hcu_algo algo );

She returns an int, she takes three things, she slays. Periodt 💖

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👑 ARGUMENTS 👑

• hcu_dev — the target HCU device 🖥️ like, the one we're actually talking to.
• data — where to store the intermediate 🗂️ this is the lil container it goes into.
• algo — the algorithm being used 🧮 so she knows which one we're running.

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🔥 DESCRIPTION 🔥

So the whole vibe of this function is: it saves the current hashing process state, so you can pick it back up later 🔖 no cap, that's the entire point. It's giving "pause and resume, but for hashing" ⏸️▶️

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⭐ NOTE ⭐

Bestie, listen, this is important 👀 once all the data has been processed, the intermediate data actually contains the hashing result. So this same function is also how you retrieve the final result of a hashing process 🏁 like, one function, two jobs, she's multitasking and we love her for it 🫶

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🎀 RETURN 🎀

• 0 on success 🎉 (iconic)
• negative error code otherwise 😭 (not iconic)

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🌈 SEE ALSO 🌈

Kernel file ./drivers/crypto/intel/keembay/ocs-hcu.c — go read her, she's got lore 📖

• struct ocs_hcu_dma_entry(9)
• struct ocs_hcu_dma_list(9)
• ocs_hcu_wait_busy(9)
• ocs_hcu_set_intermediate_data(9)
• ocs_hcu_hw_cfg(9)
• ocs_hcu_clear_key(9)
• ocs_hcu_write_key(9)
• ocs_hcu_ll_dma_start(9)
• ocs_hcu_hash_init(9)
• ocs_hcu_hash_update(9)
• ocs_hcu_hash_finup(9)
• ocs_hcu_hash_final(9)
• ocs_hcu_digest(9)
• ocs_hcu_hmac(9)

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💖 okay that's the whole page, mwah 💖

This lil gem lives over at ./drivers/crypto/intel/keembay, dated October 2026, and her full fancy title is ocs_hcu_get...mediate_data(9) — write it down bestie, it's giving iykyk 💅✨🍓