Am 26.10.2016 um 02:04 schrieb Maciej S. Szmigiero: > > I have tried dosemu, dosbox and as far I remember also VirtualBox > with an old, DOS car service app. > Wasn't able to make it communicate until I booted true DOS. > That machine had old-style ISA serial ports so it was possible. > This is because it most likely uses the K-Line protocol, which needs to output two bytes at 5 (in words: FIVE) baud at the very beginning of each package. It's no possible to have such a bitrate through any standard driver. Those old car service apps tweak the UART hardware heavily to output that signalling. It literally needs a 8250 chip. May even fail with some SuperIO "16550" emulations in current mainboards. Newer cars have CAN, but these K-Line cars (up to model year 2005 I think) can give you headaches. Kind regards Jan -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html