SUBSYSTEMS=="usb", KERNEL=="ttyUSB*", ATTRS{bInterfaceNumber}=="00". SYMLINK+="Reader1"
SUBSYSTEMS=="usb", KERNEL=="ttyUSB*", ATTRS{bInterfaceNumber}=="01". SYMLINK+="Reader2"
SUBSYSTEMS=="usb", KERNEL=="ttyUSB*", ATTRS{bInterfaceNumber}=="02". SYMLINK+="Reader3"
SUBSYSTEMS=="usb", KERNEL=="ttyUSB*", ATTRS{bInterfaceNumber}=="03". SYMLINK+="Reader4"
bei mehreren "Quadmäusen" hilft nur noch die ID weiter, z.B.
SUBSYSTEMS=="usb", KERNEL=="ttyUSB*", ID=="1-2:1.0", ATTRS{bInterfaceNumber}=="00". SYMLINK+="Reader1"
SUBSYSTEMS=="usb", KERNEL=="ttyUSB*", ID=="1-2:1.1", ATTRS{bInterfaceNumber}=="01". SYMLINK+="Reader2"
SUBSYSTEMS=="usb", KERNEL=="ttyUSB*", ID=="1-2:1.2", ATTRS{bInterfaceNumber}=="02". SYMLINK+="Reader3"
SUBSYSTEMS=="usb", KERNEL=="ttyUSB*", ID=="1-2:1.4", ATTRS{bInterfaceNumber}=="03". SYMLINK+="Reader4"
SUBSYSTEMS=="usb", KERNEL=="ttyUSB*", ID=="1-4:1.0", ATTRS{bInterfaceNumber}=="00". SYMLINK+="Reader5"
SUBSYSTEMS=="usb", KERNEL=="ttyUSB*", ID=="1-4:1.1", ATTRS{bInterfaceNumber}=="01". SYMLINK+="Reader6"
SUBSYSTEMS=="usb", KERNEL=="ttyUSB*", ID=="1-4:1.2", ATTRS{bInterfaceNumber}=="02". SYMLINK+="Reader7"
SUBSYSTEMS=="usb", KERNEL=="ttyUSB*", ID=="1-4:1.4", ATTRS{bInterfaceNumber}=="03". SYMLINK+="Reader8"