init_rs_internal(9)

💫 init_rs_internal(9) — the kernel API manual, but make it make sense 💫

okay so bestie, welcome to init_rs_internal(9) from the Kernel API Manual — this is the deep-lore Reed–Solomon one, so grab a boba and let's get into it 🧋✨

🌸 NAME 🌸

init_rs_internal — bestie. this one allocates an rs control block, then goes and finds a matching codec for you, or — if nothing matches — it allocates a brand new one. it's giving "matchmaker, but for Galois fields" 💅

✨ SYNOPSIS ✨

struct rs_control * init_rs_internal (int symsize , int gfpoly , int
(*gffunc)(int) , int fcr , int prim , int nroots , gfp_t gfp );

look at her. seven whole arguments. main character energy, no cap 👑

🎀 ARGUMENTS 🎀

• symsize — the symbol size, okay? and that means number of bits. that's it. that's the whole vibe 💖
• gfpoly — the extended Galois field generator polynomial coefficients, with the 0th coefficient in the low order bit. and fair warning bestie: the polynomial must be primitive — that's not a suggestion, that's the rule 🔥
• gffunc — pointer to a function that generates the next field element, or the multiplicative identity element if you hand it 0. this one gets used instead of gfpoly when gfpoly is 0 — so like, it's the backup dancer that gets promoted to lead 🩰
• fcr — the first consecutive root of the rs code generator polynomial, in index form. yes, index form. keep up, i believe in you 🫶
• prim — the primitive element used to generate the polynomial roots ✨
• nroots — the RS code generator polynomial degree, a.k.a. the number of roots. that's the count. literally just the count 🍓
• gfp — the GFP_ flags for allocations. you know the ones, the little allocation mood ring 💀

🦋 SEE ALSO 🦋

look at this little friend group omg 😭🫶

• Kernel file ./lib/reed_solomon/reed_solomon.c
• codec_init(9)
• free_rs(9)
• init_rs_gfp(9)
• init_rs_non_canonical(9)
• encode_rs8(9)
• decode_rs8(9)
• encode_rs16(9)
• decode_rs16(9)

and that's the whole page, bestie!! 💖 this one lives in ./lib/reed_solomon, the version vibe is October 2026, and the page is init_rs_internal(9) — slay, ate, left no crumbs, periodt ✨🎀🌈