USB Device Permissions In Fedora 11

[Harald Hoyer]

On 05/16/2009 12:57 AM, Wolfgang S. Rupprecht wrote:
> Robert L Cochran<cochranb at speakeasy.net>  writes:
>> Having to do this chmod step annoys me. Is there some way to automate the detection and setting of permissions on the device such that everything is done correctly a moment or so after I connect the Blackberry over USB?
>
> You can put rules down in /etc/udev/ruled.d/ and have them fire when the
> appropriate device is plugged in.    Here is one that I have for my gps:
>
> /etc/udev/rules.d/55-wsrcc-hotplug.rules:
>
> # SIRF-III usb gps (Globalstar bu-XXX)
> #
> # added by wsr 2006-05-02
> # /sys/devices/pci0000:00/0000:00:13.1/usb3/3-2
> # manufacturer="Prolific Technology Inc."
> # idProduct=2303
> # idVendor=067b
> # version=" 1.10"
> # product=USB-Serial Controller
> # add this too??
> # SYSFS{idVendor}=="067b"
> KERNEL=="ttyUSB*", SYSFS{idProduct}=="2303", SYMLINK+="gps" GROUP="staff" MODE="
> 0666"
>
> It takes a bit of playing with "lsusb -v" to figure out what unique
> product or vendor name you can latch onto.  Once you figure that out you
> can chmod the device or even make a symlink to have a generic name you
> can access it with.
>
> -wolfgang


This should be done with ConsoleKit and HAL... MODE="0666" will make it writable 
by _every_ user on your computer, while it should only be writable by the actual 
console user, plugging it in.

Have a look at /usr/share/hal/fdi/policy/* and watch out for "<merge 
key="access_control....."