Adaptec USBXchange USB to SCSI adapter on Windows 11

I have an Adaptec USBXchange USB to SCSI adapter that works up to Windows XP, but there are no newer drivers. I reverse-engineered the Windows 98 driver by capturing the USB packets as after it is inserted. It uses a Cypress low cost microcontroller that requires the firmware to be loaded into its RAM by the driver. It then resets and re-enumerates on the USB bus. I created a small Windows app that replicates the firmware upload, and the device now appears as an Adaptec USBXchange Adapter device in Device Manger. However, there is still no driver for it. I thought this would make it work, as I

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