webcam support for a WM8850 7" netbook???

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http://forums.androidcentral.com – hi all, new member Q please... -just bought a netbook that uses a wm8850 processor and jellybean 4.1 it has a built in webcam but I would like to connect a usb webcam. -can you help with how to get the netbook to recognise an alternative/usb webcam? the netbook has two usb ports and 'sees' a usb mouse but not a webcam. -any ideas please? would software sort it or a specific webcam? thanks for any help! (HowTos)