Hy Arado, The OnStep rule is: KERNEL=="ttyUSB*", SUBSYSTEMS=="usb", ATTRS{idVendor}=="10c4", ATTRS{idProduct}=="ea60", MODE="0666", SYMLINK+="OnStep" About GPSD rule I don't touch nothing I only do it that Aj55 suggest it about to not use from boot moment. If you want I send it but is to large... (but I don't touch nothing inside). Thanks, PepRead More...