On Mon, Jan 10, 2011 at 7:48 AM, daemeon271 wrote:
> -----------------------------------------
> libusb couldn't open USB device /dev/bus/usb/003/003: Permission denied.
> libusb requires write access to USB device nodes.
> Unable to set the device configuration
> -----------------------------------------
> A search of some sites suggest releasing the kernel lock on the device,
> using udev to remount the device within the user's privileges or running the
> script with root privileges. However, I was wondering what the preferred
> method for gaining read/write privileges to the device and how to accomplish
> this.
Hi, I would make a .rules file in /etc/udev/rules.d with something like this:
ACTION=="add", SUBSYSTEM=="usb", ATTRS{idVendor}=="413c",
ATTRS{idProduct}=="2005", MODE="660", GROUP="plugdev"
See "man udev" and the rules in /lib/udev/rules.d for more examples,
you can also match on other things than USB ID.
Cheers,
Tormod
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