[libhid-discuss] hid_force_open & non-root access using udev and also other platforms

[Xiaofan Chen]

On 10/8/07, Folkert van Heusden <folkert at vanheusden.com> wrote:
> Hi,
>
> In test_libhid.c I found the following code/text regarding hid_force_open:
>
> >  * To open the HID, you need permission to the file in the /proc usbfs
> >  * (which must be mounted -- most distros do that by default):
> >  *   mount -t usbfs none /proc/bus/usb
> >  * You can use hotplug to automatically give permissions to the device on
> >  * connection. Please see
> >  *   http://cvs.ailab.ch/cgi-bin/viewcvs.cgi/external/libphidgets/hotplug/
> >  * for an example. Try NOT to work as root!
>
> Now I was wondering:
> - is there an udev solution for this?


Of course. Actually udev rules are preferred in newer distros since
they may not support hotplug rules.

Here is a good reference.
http://piklab.sf.net/files/libusb_udev_hotplug.txt

Xiaofan