[omtinez]

> Does it work with Raspberry Pis and the CSI cameras? What about my Logitech USB camera?

I don't know details about the Raspberry Pi cameras, but if it's a UVC camera (quite likely) then it should be supported by this library according to the documentation. A USB Logitech camera should also be supported. The gotcha is that unless those cameras expose advanced functionality (3A, multiple stream support, etc) then you don't get any benefit over using the standard V4L drivers.

> Would it support receiving a picture from eg a flatbed scanner over a parallel port?

I don't think scanners identify themselves as camera devices, but someone can correct me if I'm wrong.

[mpol]

For flatbed scanners you would use something like SANE or Vuescan. Most devices have a different driver.