ocs_hcu_wait_busy(9)

💖 ocs_hcu_wait_busy(9) 💖

okay so welcome to the Kernel API Manual, bestie — this is the page for ocs_hcu_wait_busy(9), and it's giving "please wait for the hardware to be ready" energy.

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🌸 NAME 🌸

ocs_hcu_wait_busy — Wait for HCU OCS hardware to became usable.

(yes, "became" is literally what it says — keeping the original wording, no cap 🫶)

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🦋 SYNOPSIS 🦋

int ocs_hcu_wait_busy (struct ocs_hcu_dev *hcu_dev );

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🎀 ARGUMENTS 🎀

• hcu_dev — OCS HCU device to wait for. like, that's the whole device we're waiting on, bestie.

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✨ RETURN ✨

• 0 — if device free. slay, you're clear 💅
• -ETIMEOUT — if device busy and internal timeout has expired. not the vibe, but important 😭

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🔥 SEE ALSO 🔥

the whole friend group, periodt:

• Kernel file ./drivers/crypto/intel/keembay/ocs-hcu.c
• struct ocs_hcu_dma_entry(9)
• struct ocs_hcu_dma_list(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_digest(9)
• ocs_hcu_hmac(9)

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mwah 💋 — source/version: ./drivers/crypto/intel/keembay · date: October 2026 · page: ocs_hcu_wait_busy(9). periodt. 🌈👑