cp210x_write_u16_reg
ret = cp210x_write_u16_reg(port, CP210X_EMBED_EVENTS, CP210X_ESCCHAR);
ret = cp210x_write_u16_reg(port, CP210X_EMBED_EVENTS, 0);
ret = cp210x_write_u16_reg(port, CP210X_SET_LINE_CTL, bits);
ret = cp210x_write_u16_reg(port, CP210X_SET_MHS, control);
return cp210x_write_u16_reg(port, CP210X_SET_BREAK, state);
result = cp210x_write_u16_reg(port, CP210X_IFC_ENABLE, UART_ENABLE);
cp210x_write_u16_reg(port, CP210X_IFC_ENABLE, UART_DISABLE);
cp210x_write_u16_reg(port, CP210X_PURGE, PURGE_ALL);
cp210x_write_u16_reg(port, CP210X_IFC_ENABLE, UART_DISABLE);