Messages in this thread | | | Date | Mon, 22 Oct 2012 11:50:04 -0700 | From | Greg KH <> | Subject | Re: usbview 2.0 release |
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On Tue, Oct 23, 2012 at 12:09:00AM +0530, Anil Nair wrote: > Hello Greg, > > I had only one doubt though the tool seems to work for rooted users only? > when i try to launch it as a normal user it gives me error saying, > > " > Can not open the file /sys/kernel/debug/usb/devices > > Verify that you have USB compiled into your kernel, > have the USB core modules loaded, and have the > usbdevfs filesystem mounted > > "
Ugh, that old usbdevfs name should go away, it's debugfs that is being used now, thanks for pointing it out.
> That problem gets solved when using root user, is it because of the > reason that i have to mount usbdevfs for my current user? > The earlier usbview v1.1 tool required that that is why i am asking you.
No, debugfs needs to be mounted at /sys/kernel/debug/ Is it not mounted that way for you? Perhaps it is mounted with root-only access (default for 3.7-rc1 and newer kernels)?
I should just port the thing to use libusb instead of debugfs, but that's a larger job for such a low-priority tool.
thanks,
greg k-h
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