Ooops.
Thanks for catching that.
I had no ‘large transfer’ pieces of equipment and clearly I missed a line!
Change and updated ChangeLog applied to subversion repository.
> On Nov 19, 2014, at 10:53 AM, Bruno Martins <[email protected]> wrote:
>
> Hi all,
>
> I'm using drvAsynUSBTMC to talk to a Tektronix scope and found a bug.
>
> asynOctetRead (in drvAsynUSBTMC.c) tries to fill the passed 'data' pointer with data from 'pdpvt->bufp'. However, if 'maxchars' > 'pdpvt->bufCount' a new packet will be requested from the USB driver and be saved to 'pdpvt->bufp'. Then, in the next 'for' loop iteration, 'data' will be overwritten.
>
> The fix is to increment 'data' pointer by the appropriate amount. A patch is attached.
>
>
>
> Thanks,
>
> Bruno
> <usbtmc.patch>
--
Eric Norum
[email protected]
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