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Matching device not found

Honored Contributor II

I am using De2i-150 board. I am trying to inface fpga and yocto. I am using driver files for pci express communication.I have generated the .ko file and loaded it with the configuration file into the kernel and it was showing me "Matching device found".Now I am wring my own application.I have generated an sof file for that and downloaded it in fpga.After i rebooted the system again I tried to load the driver.But now it is showing :Matching device not found". Please provide some solution for this

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