Hi Mingcheng, On Monday 19 December 2011 19:09:18 Zhu, Mingcheng wrote: > Hi Laurent, > > I have a problem here. Take following example that we have two video dev > nodes as: > /dev/video0: this node is for WIFI capture WIFI capture ? I'm curious about that, what do you mean exactly ? > /dev/video1: this is the camera driver. > > Is it possible for the user space to find out video1 is the camera without > open and query each video node's capabilities? If the drivers that expose those nodes are media-controller aware, one possible solution is to open the media controller device(s) and enumerate the entities. I'm not sure that would be faster than opening and querying the video nodes though. -- Regards, Laurent Pinchart -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
