rxck_def
const struct rxck_def *def;
static const struct rxck_def _ck480M = {0x8, 0x2, 0x3, 0xf, 0x0, 0x9};
static const struct rxck_def _ck960M = {0x8, 0x2, 0x2, 0x8, 0x0, 0x9};
static const struct rxck_def _ck1920M = {0x8, 0x0, 0x2, 0x4, 0x6, 0x9};