Experimental Physics and
Industrial Control System

Andrew Johnson <[email protected]> · Mon, 15 Mar 2010 09:30:43 -0600

Hi Steve,

On Monday 15 March 2010 04:45:15 Steve Kinder wrote:
> Is there any length restriction on an INP field, before or after the
> expansion of any macros it may contain?

Unlike many places inside the IOC, there is no built-in length limitation to 
the value that can be placed in a link field using dbLoadRecords(), which 
means that the @parm part of a hardware link address can be as long as you 
like.

Of course if you want to read or update the field through CA there is a 40 
character limit to the string you can pass as a DBR_STRING, and with the new 
array-of-chars support in 3.14.11 using the @ field modifier I believe CA will 
still limit you to passing at most 72 characters to/from a link field.

HTH,

- Andrew
-- 
The best FOSS code is written to be read by other humans -- Harald Welte

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System