1. The SVID you are using is incorrect. The SVID number of 0xFF01 is for DisplayPort Alt Mode. And all of the Mode is defined in the DisplayPort Alt Mode over Type-C. So that the value in the Mode is not the random value.
2. If you just want to change the mode of SVID, there no need additional firmware changes need in the project of PSoC Creator. Since the Alternate mode support information will be cached by firmware configure table. You just need update the config.c in the firmware or save to HEX file.
3. If you want to add additional SVID, the correct way is:
a. Select SVID Configuration and Add a node under SVID Configuration.
b. Edit the SVID and Mode as per your requirements.
c. And then, you need add the SVID into the project and customize the firmware of Alt mode folder. You could refer all of contents of code define and flow under Macro Define DP_DFP_SUPP or DP_UFP_SUPP to customize your firmware.
The issue I am having is that the UFP device is not sending the SVID that was defined with both the EZ-PD Configuration Utility and the config.c file that was generated from the utility tool. When the DFP sends a “Discovery Identity” message, the UFP incorrectly sends a SVID of 0xFF00 instead of the desired 0x134A SVID with the mode types defined for that SVID. What am I doing incorrectly?
UFP Discovery Identity Response:
You need change the default firmware (You are using CCG4 as per the screen shot) and refer below blog at first.
And then, add SVID additional -- Select SVID Configuration and click +Add, SVID 0 will be add under SVID Configuration. It means the CCG4 will have SVID 0 and SVID 1. The SVID = 0x19A5. And then, the CCG4 will reply the Discovery Identify with two SVIDs.