On Fri, 2016-03-11 at 19:08 +0800, Joseph Chang wrote: > I tested by >  ./ethtool -E eth0 magic 0x9620 offset 0 length 3 value 0xf1 value 0xf2 value 0xf3 > > I think ethtool need [ value N ] for each byte (so need three "value xx" in above command line),  > am I right? > > Oh, I can see it goes wrong~ Thanks~ [...] You can only pass one byte on the command line and that forces the length to be 1.  To set multiple bytes, you need to provide them on stdin instead. Ben. -- Ben Hutchings 73.46% of all statistics are made up.