ocs_hcu_digest(9)

🎀 ocs_hcu_digest(9) 🎀

okay so bestie, welcome to the Kernel API Manual — this is the page for ocs_hcu_digest, and it's literally the "compute me a hash digest" function. no cap, it's giving crypto-core and we're obsessed 💅

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✨ NAME ✨

ocs_hcu_digest — Compute hash digest. that's it, that's the whole name section, and honestly? iconic. 🫶

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🌸 SYNOPSIS 🌸

int ocs_hcu_digest (struct ocs_hcu_dev *hcu_dev , enum ocs_hcu_algo algo
, void *data , size_t data_len , u8 *dgst , size_t dgst_len );

yes the spacing is exactly like that, do not come for me, I don't make the rules 🧚

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💖 ARGUMENTS 💖

• hcu_dev — the OCS HCU device you wanna use. main character energy, everything happens through them 🦋
• algo — the hash algorithm to use. pick your fighter ✨
• data — the input data to process, the raw material, the moment before the glow-up 💫
• data_len — the length of data. gotta know how much we're working with 📏
• dgst — the buffer where the computed digest gets saved. this is the reveal, the big finale 👑
• dgst_len — the length of dgst. yes, we respect buffer boundaries in this house 🙈

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⭐ RETURN ⭐

0 on success; negative error code otherwise. so like, 0 = slay, anything negative = not slay, check your errno vibes 😭🔥

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🌈 SEE ALSO 🌈

• the Kernel file ./drivers/crypto/intel/keembay/ocs-hcu.c
• struct ocs_hcu_dma_entry(9)
• struct ocs_hcu_dma_list(9)
• ocs_hcu_wait_busy(9)
• ocs_hcu_get_intermediate_data(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_hmac(9)

like, read them all, they're the friend group, the whole squad, iykyk 💀💜

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aaaand that's the page!! brought to you with love from ./drivers/crypto/intel/keembay, timestamped October 2026, still answering to ocs_hcu_digest(9) the way it always has. go forth and hash bestie 🍓🌸💖