I have been working on communicating with USB devices from within VFP lately and I came across this great tool:
http://www.microsoft.com/whdc/device/stream/vidcap/UVCViewdwn.mspx?The tool shows the tree of all USB hubs and connected devices and each device's descriptors, with additional support for video devices. Another great link:
http://www.lvr.com/usb.htm
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"When the debate is lost, slander becomes the tool of the loser." - Socrates
Vita contingit, Vive cum eo. (Life Happens, Live With it.)
"Life is not measured by the number of breaths we take, but by the moments that take our breath away." -- author unknown
"De omnibus dubitandum"