add_iaa_compression_mode(9)

💅 add_iaa_compression_mode(9) — the kernel API manual, bestie edition

okay so real quick: this is a page from the Kernel API Manual, section 9, and it's all about add_iaa_compression_mode. yes the title is a mouthful. no we're not renaming it. let's go 🫶

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✨ NAME ✨

add_iaa_compression_mode — literally just: add an IAA compression mode. that's it. that's the whole vibe. 🎀

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🌸 SYNOPSIS 🌸

int add_iaa_compression_mode (const char *name , const u32 *ll_table ,
       int ll_table_size , const u32 *d_table , int d_table_size ,
       iaa_dev_comp_init_fn_t init , iaa_dev_comp_free_fn_t free );

like, seven whole parameters. she's high maintenance but she's iconic for it 💅

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🦋 ARGUMENTS 🦋

• name — the name the compression mode will be known as. this is her government name, choose wisely ✨
• ll_table — the ll table. that's the whole description. the ll table. iykyk 🍓
• ll_table_size — the ll table size in bytes. yes, bytes. keep up 💀
• d_table — the d table. again, that's the entire explanation. she's mysterious. main character energy 🌈
• d_table_size — the d table size in bytes. same units as her sister above ⭐
• init — optional callback function to init the compression mode data. optional!! so you can skip her if you want, no pressure 🧚
• free — optional callback function to free the compression mode data. also optional, also important, don't forget the free fr fr 😭

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💖 DESCRIPTION 💖

Add a new IAA compression mode named name.

Returns 0 if successful, errcode otherwise.

that's the whole deal. zero means slay, anything else means the universe said no 🙈

ngl bestie, this is one of those pages where the synopsis does 90% of the talking and the description just shows up to say "yeah, it does the thing, and here's your return code." and honestly? respect. she's efficient. 👑

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👑 SEE ALSO 👑

• Kernel file ./drivers/crypto/intel/iaa/iaa_crypto_main.c
• set_iaa_sync_mode(9)
• remove_iaa_compression_mode(9)

go read those too, bestie, they're all in the same friend group 🫶

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and that's the page!! footer tea for the record keepers: this one lives under the source ./drivers/crypto/intel/iaa and it's dated October 2026, and it's filed as add_iaa_compression_mode(9). periodt. 💜✨