pack_fields_u16(9)

🌸 pack_fields_u16(9) — the kernel API manual, bestie edition 🌸

Okay so we're doing pack_fields_u16(9) today, and it's giving kernel API manual but make it cute. Buckle up 🎀

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✨ NAME ✨

pack_fields_u16 — Pack array of fields. That's it, that's the whole vibe 💅

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🦋 SYNOPSIS 🦋

void pack_fields_u16 (void *pbuf , size_t pbuflen , const void *ustruct
, const struct packed_field_u16 *fields , size_t num_fields , u8 quirks
);

Six arguments, zero chill. Let's go through every single one because we are not skipping anybody 🙈

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💖 ARGUMENTS 💖

• pbuf — Pointer to a buffer holding the packed value. Like, this is where the packed stuff lives, periodt.
• pbuflen — The length in bytes of the packed buffer pointed to by pbuf. Gotta know how big the thing is, obviously ✨
• ustruct — Pointer to CPU-readable structure holding the unpacked value. It is expected (but not checked — and yes that's a little scary 👀) that this has the same data type as all struct packed_field_u16 definitions.
• fields — Array of packed_field_u16 field definitions. They must not overlap. Like, no cap, don't do that 🙅‍♀️
• num_fields — Length of the fields array. Counting is self-care 🧚
• quirks — A bit mask of QUIRK_LITTLE_ENDIAN, QUIRK_LSW32_IS_FIRST and QUIRK_MSB_ON_THE_RIGHT. Three little flags, one big vibe check 💀

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🔥 DESCRIPTION 🔥

Use the pack_fields macro instead of calling this directly. Fr fr, that's the whole bit — the macro is the main character here, this function is just backstage 💜

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🌈 SEE ALSO 🌈

Kernel file ./lib/packing.c and its whole friend group: calculate_box_addr(9), pack(9), unpack(9), packing(9), pack_fields_u8(9), unpack_fields_u8(9), unpack_fields_u16(9). They all ate, honestly 👑

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lowkey the most important part: that ustruct type match is expected but not checked, so the vibes are on you to get it right. No refunds, no safety net 😭

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byeeeee bestie 🫶 this iconic lil page came from the source <purple>./lib</purple> and was dated October 2026 — stan forever 💅✨🍓