uchcom_write_reg
uchcom_write_reg(sc, UCHCOM_REG_STAT1, val, UCHCOM_REG_STAT1, val);
uchcom_write_reg(sc, brk1, 0, 0, 0);
uchcom_write_reg(sc, UCHCOM_REG_BREAK1, brk1, UCHCOM_REG_LCR1,
uchcom_write_reg(sc, UCHCOM_REG_BPS_PRE, 0x82,
uchcom_write_reg(sc, 0x2c, 0x07, UCHCOM_REG_BPS_PAD, 0);