Hi Tapas,
You have incuded CPIA , GSPCA and UVC drivers in make file of SRC directory . I think that all the drivers that you have incuded in make file should work . Please correct me if I am not correct. The UVC driver for my laptop is not working . I am trying to make it work.
I tried the UVC driver, but unfortunately this driver does not support video capturing trough the read system call. To make it work you have to add the code for capturing video through shared memory. You should have a look into the the V4L2 documentation for that.
Ciao, Dirk.