Experimental Physics and Industrial Control System

I don’t see why it’s not printing the error message returned from the driver.

Mark


Sent from my iPhone

On Jul 17, 2019, at 1:28 PM, Eric Norum <[email protected]<mailto:[email protected]>> wrote:

I  checked that autoConnect code and it does print the error message supplied by the driver:

    if (!pdpCommon->connected) {
        epicsMutexMustLock(pport->synchronousLock);
        status = pasynCommon->connect(drvPvt,pasynUser);
        epicsMutexUnlock(pport->synchronousLock);
    }
    if(status!=asynSuccess) {
        asynPrint(pasynUser,ASYN_TRACE_ERROR,
            "%s %s %d autoConnect could not connect\n",
            pasynUser->errorMessage,pport->portName,addr);
    }

So the fact that there’s nothing printed between the time and the port name implies that the USBTMC connect method is returning a value other than asynSuccess but is not filling in an error message.
I had a look through drvAsynUSBTMC.c and can see no place that its connect method returns asynError without filling a value into pasynUser->errorMessage.
What version of ASYN are you using?
Mark, any idea what’s going on here?

On Jul 17, 2019, at 9:55 AM, Christopher Herrmann <[email protected]<mailto:[email protected]>> wrote:

I tried the command you suggested. Here is the output when running the IOC.

usbtmcConfigure("U0", 0x05E6, 0x2230, "", 0, 0)
Will connect to first USB TMC device found with vendor ID 0x05e6 and product ID 0x2230.
2019/07/17 12:53:34.209 U0 -1 autoConnect could not connect

References:

USBTMC Device can not autoConnect Christopher Herrmann via Tech-talk

Re: USBTMC Device can not autoConnect Eric Norum via Tech-talk

Re: USBTMC Device can not autoConnect Eric Norum via Tech-talk

Re: USBTMC Device can not autoConnect Eric Norum via Tech-talk

Navigate by Date:

Prev: Re: USBTMC Device can not autoConnect Eric Norum via Tech-talk

Next: Add widgets to Phoebus Hasbroucq Dorian via Tech-talk

Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  <2019>  2020  2021  2022  2023  2024 

Navigate by Thread:

Prev: Re: USBTMC Device can not autoConnect Eric Norum via Tech-talk

Next: RE: USBTMC Device can not autoConnect Mark Rivers via Tech-talk

Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  <2019>  2020  2021  2022  2023  2024