[Discuss-gnuradio] tunnel.py and PS3

[Tim Meehan]

Hello all,


tunnel.py  (examples/python/digital) hardcodes   a value

     TUNSETIFF = 0x400454ca


This does not seem to be compatible with the PS3.  

running tunnel.py returns 

    ifs = ioctl(tun, TUNSETIFF, struct.pack("16sH", "gr%d", mode))
IOError: [Errno 22] Invalid argument


Changing the hardcoded value to

     TUNSETIFF = 0x800454ca   (changed 4004 to 8004)

allows tunnel.py to function properly on PS3.

Question:  Anyone have a good way to set these values other than hard coding them?  

i.e. how can we get the values directly out of linux/if_tun.h?


Tim