R92C_LEDCFG1
reg = urtwn_read_1(sc, R92C_LEDCFG1) & R92E_LEDSON;
urtwn_write_1(sc, R92C_LEDCFG1, reg |
reg = urtwn_read_1(sc, R92C_LEDCFG1) &
urtwn_write_1(sc, R92C_LEDCFG1, reg);