Man page 9 : init_rs

init_rs - Find a matching or allocate a new rs control structure

struct rs_control * init_rs(int  symsize , int  gfpoly , int  fcr , int  prim , int  nroots );

symsize
    the symbol size (number of bits)

gfpoly
    the extended Galois field generator polynomial coefficients, with the 0th coefficient in the low order bit. The polynomial must be primitive;

fcr
    the first consecutive root of the rs code generator polynomial in index form

prim
    primitive element to generate polynomial roots

nroots
    RS code generator polynomial degree (number of roots)

Thomas Gleixner <>
    Author.