LCD_FLAG_B
priv->flags |= LCD_FLAG_B;
priv->flags &= ~LCD_FLAG_B;
LCD_FLAG_C | LCD_FLAG_B;
LCD_FLAG_C | LCD_FLAG_B;
LCD_FLAG_D | LCD_FLAG_C | LCD_FLAG_B;
((hdc->hd44780_common_flags & LCD_FLAG_B) ?
((hdc->hd44780_common_flags & LCD_FLAG_B) ?
hdc->hd44780_common_flags |= LCD_FLAG_B;
hdc->hd44780_common_flags &= ~LCD_FLAG_B;