Experimental Physics and
Industrial Control System

Dirk Zimoch via Core-talk <core-talk at aps.anl.gov> · Thu, 06 Oct 2022 19:50:41 -0000

Hmm… We have a driver that sets ROFF to -512. I’ll need to see how I can modify it. My first attempt was to simply use EOFF instead (properly scaled of course) but that does not work with breakpoint tables. Another case was a user who had set ROFF to a negative value in his template or from another record or something like that (with another driver which does not use ROFF).
I guess we cannot have both, full 32 bit unsigned AND negative values unless ROFF was a double (or 64 bit signed int).

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https://bugs.launchpad.net/bugs/1991765

Title:
  Problem with ROFF change in ai/ao

Status in EPICS Base:
  New

Bug description:
  In commit ffcbd4ca, ROFF of ai and ao have been changed from LONG to ULONG.
  This has caused problems when migrating from EPICS 3.14 to 7.0 in multiple cases where ROFF was negative and thus became a huge positive value.
  There seems to be no workaround for this regression.

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Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System