On Thursday 24 June 2004 06:34, Greg KH wrote: > On Wed, Jun 23, 2004 at 06:04:27PM +0100, Hugo Costelha wrote: > > The code that runs in the robots is the same for every robot. It's > > important to us that when our program starts it now which cameras is > > /dev/video0 and which cameras is /dev/video1 (the left one, or the right > > one, etc..). With the firewire cameras I read the serial number of the > > cameras to fin out which is which, can I do the same with USB cameras? > > How? > > Sure, use udev to manage your /dev tree, and make a rule based off of > the serial numbers. > > Hope this helps, > > greg k-h
Well, I'm more or less a newbie and don't understand that much. Using your advice, how could I know the serial number, or make the assigment based on the serial number? How can I make the rule you talk about? That is, I have like a a file with 16 cameras listed, but only to of those are connected to the laptop and I want to be able to determine that those are the available cameras on that laptop. You see, it doesn't matter to me if the camera get's /dev/video0 or /dev/video20 as long as I'm able to determine which is which. Isn't there an USB API that can let me retreive the serial number? Thanks for your advice and sorry for my lack of knowledge in this matter. Hugo Costelha ------------------------------------------------------- This SF.Net email sponsored by Black Hat Briefings & Training. Attend Black Hat Briefings & Training, Las Vegas July 24-29 - digital self defense, top technical experts, no vendor pitches, unmatched networking opportunities. Visit www.blackhat.com _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
