Well, hello everybody, my first post.
This guide is just to late for me.
My gateway is up 
(AA555A0000001111).
IMST IC880A - RPI2 - native SPI.
I had to change loragw_spi.native.c just the same as @bitmorse in post#13 of thread “Receiving packets with an IMST IC880a not working?” (found that post to late too)
Is anyone else using a RPI with native SPI without this change?
same question, other words: is anyone using loragw_spi.native.c in its current state?