Pinout USB device

[Hackxd]

Is there any way to pinout a usb device?
I want to connect an iMac webcam to a usb cable, but the colors don't match the usb color scheme (I have brown, violet, grey and black)
Any help would be appreciated
Thanks in advance!

 

[davenn]

The colours are unimportant ... they vary from manuf. to manuf
the purpose of the wires is what counts
does the iMac web cam come out to a standard USB ?
that is ... is it fully USB compatable

Dave

 

[Hackxd]

It uses a proprietary connector, but is detected as an USB device, hence 2 of the 4 cables are D+ and D-, and the other 2 are + and -
I assume the easy way would be measuring the voltage directly form the motherboard when plugged in to determine + and -, but since I only have the webcam and cable, I wanted to know if there's a way to determine which cable are which without plugging it in
Thank you for your input

 

[Hackxd]

Here's a pic of the camera with the cable:

 

[Hackxd]

Any help please?