Raspberry PI: Bypassing IR TX/RX

[Rajendra P. <raj...@ya...>]

Hello LIRC Group Members:
I am revisiting this group after a long time(2015 or so). So please pardon me if this is not the right address for the request.
I am successfully using RPI3B+ to transmit IR code to a connected device IR receiver, both inside an enclosure; so directly wire-able to bypass the IR TX/RX HW with a simple wires from GPIO.
Previously, I tried solution of rebuilding the Raspbian kernel etc and modifying the IR config file. But I could not succeed.
I am wondering if there is any more robust solution to the problem. I am using Raspbian Stretch:
    uname -a
    Linux SS-P1 4.19.66-v7+ #1253 SMP Thu Aug 15 11:49:46 BST 2019 armv7l GNU/Linux
I greatly appreciate your help.
Thanks,Raj