Thetrxcontrole of my icom ic-7300 is working with me.
I am working with linux mint 18.
I have first uninstald cqrlog and ham lib.
Then i have instald libhamlib2_3.0.1-1_amd64.deb
Then you can do rigctl -l..
Then i have instald cqrlog
373 Icom IC-7300 0.7.2 Stable
put this in preferences and it works
,now it works all ok with me.