LPT ECP problem

[Vojta]

Hello,

LTP is configured in Bios on host (win10)to ECP and guest system (winXP sp3) is cofigured by cmd commands:

Code: Select all

VBoxManage modifyvm "Windows XP SP3" --lptmode1 "LPT1:"
VBoxManage modifyvm "Windows XP SP3" --lpt1 0x378 7

(in host it is LPT1 and address is 0x378)

After use of this i see in guest LPT port but not ECP LTP port. I tried communicate with device, but there was no response.

Is it possible to have ECP mode configured in Virtual Box? If yes, how to configure it?

Thanks for the reply

[mpack]

Looking at the source code, I'd say that ECP mode is not supported.

  switch (enmMode) {
    case PDM_PARALLEL_PORT_MODE_SPP:
      iMode = IEEE1284_MODE_COMPAT;
      break;
    case PDM_PARALLEL_PORT_MODE_EPP_DATA:
      iMode = IEEE1284_MODE_EPP | IEEE1284_DATA;
      break;
    case PDM_PARALLEL_PORT_MODE_EPP_ADDR:
      iMode = IEEE1284_MODE_EPP | IEEE1284_ADDR;
      break;
    case PDM_PARALLEL_PORT_MODE_ECP:
    case PDM_PARALLEL_PORT_MODE_INVALID:
    default:
      return VERR_NOT_SUPPORTED;
  }

[socratis]

That's what I'd call "self-documenting code"!