The rule SUBSYSTEM=="usb", SYSFS{idVendor}=="040d", MODE="0666"
would actually give access to the device, but the problem might be that your user may not have the permission for accessing the device.
Because you are not giving the groups for the rule, I don't know which group will have the default access to the device (i'm guessing maybe the udev
group will have it), and if you would have followed the google's path of device setup (see section 3, third point, subsection a), you will realize that you have missed out the GROUP clause in the rule.
So basically your rule should be.
UBSYSTEM=="usb", ATTR{idVendor}=="04e8", MODE=="0666", GROUP="plugindev"
also check if you are in the group plugindev
using the command groups
. else you can give there whatever as long as you are in the group