I have the above USB tuner.
After installing usbtuner_0.7.3_all.ipk I discovered it was not recognised.
However, some other Typhoon/Freecom devices were included in usbtnrsetup.sh.
Therefore I ran
to find the ID.
ID 14aa:0160 WideView Technology Inc. Astra 5400U
Next I patched usbtnrsetup.sh with this device ID (simply pasting "14aa:0160" over the USB ID in another "WideView" line.
After a reboot the tuner was then recognised and I was able to install the drivers.
I hope this can help someone else in the same situation.