Bug#728050: tethering with iOS 7 devices fails

Hi with ipheth-utils 1.0-3+b2 and kernel 3.13.10-1 i get those: [179241.364174] usb 2-1.3: new high-speed USB device number 18 using ehci-pci [179241.462084] usb 2-1.3: New USB device found, idVendor=05ac, idProduct=12a0 [179241.462091] usb 2-1.3: New USB device strings: Mfr=1, Product=2, SerialNu

Bug#598031: long strings make python-qrencode dump core

there is a simple fix for segfault here: https://github.com/Arachnid/pyqrencode/pull/2 supplied string is over QR code size limit which depends on version and error correction level used according to wikipedia [https://en.wikipedia.org/wiki/QR_Code#Storage] size limit for version 40 with lowest er