encode_rs8(9)

✨ NAME ✨

okay bestie, this is encode_rs8(9) from the Kernel API Manual, and its whole gig is: Calculate the parity for data values (8bit data width). 💅

🌸 SYNOPSIS 🌸

int encode_rs8 (struct rs_control *rsc , uint8_t *data , int len ,
       uint16_t *par , uint16_t invmsk );

🎀 ARGUMENTS 🎀

• rsc — the rs control structure. your main character struct, basically.
• data — data field of a given type. yes, given type, keep up bestie 🫶
• len — data length. the amount of data we're working with.
• par — parity data, must be initialized by caller (usually all 0). so like, caller, please handle that first 🔥
• invmsk — invert data mask (will be xored on data). it's giving mask-with-a-job.

🦋 DESCRIPTION 🦋

okay so the parity uses a uint16_t data type to enable symbol size > 8. iconic, honestly.

the calling code must take care of encoding of the syndrome result for storage itself. no cap, that part is on the caller.

👑 SEE ALSO 👑

Kernel file ./lib/reed_solomon/reed_solomon.c — plus these related faves: codec_init(9), free_rs(9), init_rs_internal(9), init_rs_gfp(9), init_rs_non_canonical(9), decode_rs8(9), encode_rs16(9), decode_rs16(9).

source/version shoutout: ./lib/reed_solomon, dated October 2026, on the encode_rs8(9) page. byeee bestie 💖✨🫶