Integrating Custom Peripherals with Windows IoT Core

I'm working on a Windows IoT Core project that requires interfacing with a custom SPI sensor. The sensor provides raw data that needs to be parsed and exposed via a simple HTTP API. Below is the code I'm using to initialize the SPI device:

using Windows.Devices.Spi;
using Windows.Devices.Enumeration;

public async Task<SpiDevice> InitSensorAsync()
{
    var settings = new SpiConnectionSettings(0)
    {
        ClockFrequency = 500000,
        Mode = SpiMode.Mode0
    };
    string spiAqs = SpiDevice.GetDeviceSelector("SPI0");
    var devicesInfo = await DeviceInformation.FindAllAsync(spiAqs);
    return await SpiDevice.FromIdAsync(devicesInfo[0].Id, settings);
}
        

When I try to read data, I receive 0xFF for all bytes. Has anyone encountered similar issues? Any tips on proper GPIO pin configuration or driver requirements would be greatly appreciated.