logitech quickcam messenger webcam windows 10 driver

Just above the logo are a few analog support circuits. Starting at the bottom, we find the ST logo and a 2002 copyright date. Finally, on the bottom left are some analog support functions. The blue area around it contains analog processing circuits that are sensitive to light the blue layer keeps them in the dark. The grey area slightly above the centre line on the right is the camera sensor: this is where the webcam’s lens focuses the image. The green/blue blocks on the top left are memory areas, used to store raw data and processed pictures. This implements the USB interface and all digital data processing required. The large green area with horizontal stripes is a big block of digital circuits. Zooming in on the die, we see several things. Most likely it’s simply a custom part made for Logitech by ST. Googling “VV6422C001” gives little information other than distributors claiming to be able to supply it. This chip contains a CMOS image sensor, readout electronics and a complete USB interface.Īfter desoldering we find that it was made by ST. It ended up on my junk pile, and when I later disassembled it I found that it contains just a single chip, packaged in a ceramic QFN package with a glass cover. I would have thought that this thing would use some generic USB camera driver, but as it turned out it would only work with a custom Logitech driver that didn’t run on anything newer than Windows XP. Many years later, when I needed to use a webcam on my PC for something I tried to use it again, but to my surprise there was no way of getting it to work on Windows 7. I remember using it for that purpose a few times, but once the novelty wore off it just ended up gathering dust in a corner somewhere. Although I didn’t keep any pictures of the webcam itself, I recall that it was a Logitech Quickcam Messenger, a cheap USB camera meant to be used with MSN Messenger and other instant messenging programs. It came out of an old webcam that I used on my PC back in the early 2000’s. A while ago, I found this little PCB in my junk pile:

Logitech quickcam messenger webcam windows 10 driver