Re: [libusb] linux: permission denied opening USB device

[Bob S. <bo...@gm...>]

I didn't know about udev. I set the rule to

ATTR{idVendor}=="0fcf", ATTR{idProduct}=="1008", MODE+="666"

in /etc/udev/rules.d/70-persistent-net.rules

I know that I could/should put the rule in some other file, but don't know
what to name it. This seems to work.



On Thu, Oct 23, 2014 at 9:45 AM, Xiaofan Chen <xia...@gm...> wrote:

> On Thu, Oct 23, 2014 at 8:42 PM, Bob Self <bo...@gm...> wrote:
> >
> > I'm getting the following error whe I try to open a USB ANT stick,
> vendor =
> > 0fcf, product = 1008.
> >
> > libusb: error [_get_usbfs_fd] libusb couldn't open USB device
> > /dev/bus/usb/003/026: Permission denied
> > libusb: error [_get_usbfs_fd] libusb requires write access to USB device
> > nodes.
> >
> > I think that this worked a few weeks ago. I was working on the Windows
> > version of my application, then came back
> > to the linux version to test it and now I get this. What is the best way
> to
> > fix this? This is on Ubuntu 14.04.
> >
>
> Have you set up the correct udev rules for your device? Do you know if
> any kernel driver is attaching to the USB ANT stick?
>
>
> --
> Xiaofan
>