On a very basic level, I'd expect some LEDs to blink on the USB Wi-Fi adapter when it's recognized by the OS.how to check USB Wi-Fi adapter Red Pitaya in your OS image?
Normally, I connect to the Red Pitaya command line interface via wired Ethernet or USB and check it with the ifconfig command.
My question isn't about the IP address. It's about the RedPitaya Wi-Fi hotspot.I can not see IP of Red Pitaya when using your image.
If the USB Wi-Fi adapter works with the SD card image based on Alpine Linux, then the RedPitaya Wi-Fi hotspot should be listed as one of available Wi-Fi hotspots by the software that you're using for Wi-Fi.
Does the Wi-Fi client on your PC see a Wi-Fi hotspot called RedPitaya?