greg4959@greg4959-desktop:~/greg4959/source$ sudo insmod ./pac7311.ko
insmod: error inserting './pac7311.ko': -1 Unknown symbol in module
greg4959@greg4959-desktop:~/greg4959/source$
greg4959@greg4959-desktop:~/greg4959/source$ dmesg
[10301.272852] pac7311: Unknown symbol gspca_frame_add
[10301.272947] pac7311: Unknown symbol gspca_debug
[10301.273194] pac7311: Unknown symbol gspca_disconnect
[10301.273288] pac7311: Unknown symbol gspca_resume
[10301.273381] pac7311: Unknown symbol gspca_auto_gain_n_exposure
[10301.273496] pac7311: Unknown symbol gspca_dev_probe
[10301.273605] pac7311: Unknown symbol gspca_suspend
greg4959@greg4959-desktop:~/greg4959/source$