can you plug your webcam in and as a non-root user post the full contents of this command pls
lsusb | grep Logitech
it may be here
please confirm your product id is 0x092c
we know your product id is 0x046d
If so, leaping ahead now see if your module is loaded already?
I hope its unlikely, but your kernel for your distro may not offer module support for your webcam
go to /boot/config (your kernel) and open it with a text editor
search or scroll down to see this section
# Webcam devices
you should see things like
and you will need another one like
google suggests you need the 561A----but that is a MAC google hit.
but my config only has
CONFIG_USB_GSPCA_SPCA561=m whether its the same I don't know, ie is the linux driver SPCA561 or not?