The present situation is... my pi is RaspberryPi 3 B+ my usb camera is SPCA 2100 pc camera made by Sunplus IT I want to CROSS_COMPILE RaspberryPi and Qt 5.12.3 so that the camera screen can be shown on RaspberryPi. Now I have succeeded in cross-compiling and launching another webcam. But when I use the SPCA 2100 camera, the screen does not turn on. However It turns on when I turn on the SPCA 2100 camera in my laptop without cross-compiling.
So I put this camera directly into the RaspberryPi and ran it. And then VLC media player, cheese and so on... It was not run in many software, but the Camera only worked in 'Guvcview'. Why??? I've been searching hard for an answer in recent weeks, but I didn't find the answer. Please tell me what I should do.
