R92C_RSV_CTRL
error = urtwn_write_1(sc, R92C_RSV_CTRL, 0);
urtwn_write_1(sc, R92C_RSV_CTRL, 0x0E);
reg = urtwn_read_1(sc, R92C_RSV_CTRL + 1);
urtwn_write_1(sc, R92C_RSV_CTRL + 1, reg & ~0x08);
urtwn_write_1(sc, R92C_RSV_CTRL + 1, reg | 0x08);