cwfg_write
int cwfg_write(struct cwfg_softc *, uint8_t, uint8_t);
if ((error = cwfg_write(sc, MODE_REG, mode)) != 0)
if ((error = cwfg_write(sc, BATINFO_REG(n), val)) != 0)
if ((error = cwfg_write(sc, CONFIG_REG, config)) != 0)
if ((error = cwfg_write(sc, MODE_REG, mode)) != 0)
if ((error = cwfg_write(sc, MODE_REG, mode)) != 0)