nx_crypto_ctx_init(9)

💖 nx_crypto_ctx_init — Kernel API Manual, bestie edition 💖

okay so this is nx_crypto_ctx_init(9) from the Kernel API Manual and honestly? it's giving "small function, big responsibilities" ✨ because this is the one that literally creates and initializes a crypto api context. no cap, the whole thing is one function call and three arguments. we love a low-effort queen 👑

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✨ NAME ✨

nx_crypto_ctx_init — create and initialize a crypto api context 🎀

like yes, it does both. rookie move to think you'd need a separate init call. she said "I'll do it in one go" and honestly? periodt 💅

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🌸 SYNOPSIS 🌸

int nx_crypto_ctx_init (struct nx_crypto_ctx *nx_ctx , u32 fc , u32 mode
);

so the vibe check: it returns an int (iykyk), takes a pointer to a struct nx_crypto_ctx plus two u32s. look at all that space before the closing paren — she's quirky, we respect it 🙈

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🦋 ARGUMENTS 🦋

• nx_ctx — the crypto api context 💖 like, the actual context object. the main character. she's a struct nx_crypto_ctx * and she's about to get initialized, whether she's ready or not.
• fc — function code for the context ✨ this is the u32 that tells the context what kind of job it's doing. every context needs to know its function code, it's literally the whole personality.
• mode — the function code specific mode for this context 🌸 also a u32, and the key detail here is that it's function code specific — meaning it's not some universal, one-size-fits-all value. it depends on the fc you passed. so like, don't just throw a random number in there, bestie 😭

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👑 SEE ALSO 👑

okay so for further reading (because we stan doing our homework) — these all live in the kernel file ./drivers/crypto/nx/nx.c:

• nx_hcall_sync(9)
• nx_build_sg_list(9)
• nx_walk_and_build(9)
• trim_sg_list(9)
• nx_build_sg_lists(9)
• nx_ctx_init(9)
• nx_of_init(9)
• nx_register_algs(9)
• nx_crypto_ctx_exit(9)

like that's the whole girl squad right there, go look at all of them 🫶 and yes, nx_crypto_ctx_exit(9) is her opposite — the one who handles teardown — so maybe visit her too when you're done, that's just good manners ngl.

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💀 reminder: fc and mode are lowkey a matching set — mode is function code specific, so the value you pass needs to make sense for the fc you're using. don't mix and match, it's not a vibe.

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and that's the tea, bestie 🍓 this one belongs to ./drivers/crypto/nx, dated October 2026, and the manual section is nx_crypto_ctx_init(9). built different, documented adorable, slay 💅✨🌸🦋💜