Thanks for getting back.
I don't think this is the case. The code works fine in Windows, so unless something different should be done in Linux... I've included my open and close code so you can check.
I've also looked around for a way to reinitialize a usb device. I tried "umount /proc/bus/usb; mount -t usbfs none /proc/bus/usb" but that doesn't seem to do it.
I tried commenting out the viClose(rm); line in my Close() function, but this didn't seem to change anything. I've also tried simply killing my program, so that neither the instrument or RM are closed, but this doesn't seem to do much.
Jeff
int VisaInstrument::Close()
{
if (DeviceState==VIS_CLOSED)
{
return VIR_SUCCESS;
}
else if (DeviceState==VIS_OPENBUSY)
{
return VIR_BUSY;
}
else
{
viClose(vi);
viClose(rm);
DeviceState=VIS_CLOSED;
return VIR_SUCCESS;
}
}
int VisaInstrument::Open(string Device, int TO)
{
if (DeviceState!=VIS_CLOSED)
{
return VIR_ALREADYOPENED;
}
status=viOpenDefaultRM(&rm);
if (status<VI_SUCCESS)
{
return VIR_OPENFAILURE;
}
status=viOpen(rm,(ViChar*)Device.c_str(),VI_NULL,VI_NULL,&vi);
if (status<VI_SUCCESS)
{
viClose(rm);
return VIR_OPENFAILURE;
}
status=viSetAttribute(vi,VI_ATTR_TMO_VALUE,TO);
if (status<VI_SUCCESS)
{
viClose(vi);
viClose(rm);
return VIR_OPENFAILURE;
}
DeviceState=VIS_OPENFREE;
TimeOut=TO;
return VIR_SUCCESS;
}
