RE: asyn record which is both input and output

[Mark Rivers via Tech-talk <tech-talk@aps.anl.gov>]

 

Ø  So, is there any type of records that can trigger `readXX()` and `writeXX()` functions so that almost a half  of the records need not to be built?

 

I don’t understand what you are asking.  Please give a specific example of what you want to do for one parameter. 

 

Many asynPortDriver drivers use SCAN=I/O Intr for the input so they are processed when the driver does callParamCallbacks().  This will only process the input record if the value has changed.

 

I this is a motor driver have you considered using the motor record and writing a driver based on the asynMotorController and asynMotorAxis base classes?

 

Mark

 

 

From: Tech-talk <tech-talk-bounces@aps.anl.gov> On Behalf Of ??? via Tech-talk
Sent: Sunday, January 5, 2020 12:49 AM
To: tech-talk <tech-talk@aps.anl.gov>
Subject: asyn record which is both input and output

 

Hello:

    I use asynPortDriver C++ library to interface my own motor drivers. As the tutorial did, one input record and one output record will be built to read and write one parameters in drivers. the `caput` to input record won't trigger the `writeXX()` functions just because it's an input record. So, is there any type of records that can trigger `readXX()` and `writeXX()` functions so that almost a half  of the records need not to be built?

 

    Thank you,

    Jasper