On Wed, 3 Jun 2009, abhishekkumar wrote: > In /sys/class/usb_host/usb_host3 ,I have 2 soft links device and subsystem > > And 2 files companion and uevent. Are you sure you're running a kernel built with CONFIG_USB_DEBUG enabled? If you are then I guess you need to look in a different directory (this file was moved recently). Do: mount -t debugfs none /sys/kernel/debug and then look in the /sys/kernel/debug/usb/ehci/sb_05/ directory. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html