I am currently creating a camera driver for an omap3530 processor based on omap3 camera support. I have it successfully configuring my camera and /dev/video0 shows up. However when I try to open the device using any program( xawtv , cat, etc.) The system soft locks. What I am trying to do is put printk s everywhere to track down the source of the lock. Currently I would like to know where in v4l2 would be a good place to add a printk to see it go farther than the generic open from fnctrl.h. Or maybe another technique to track down where the soft lock is occurring Thanks John Sarman -- 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