Hello,  

In the past 3-4 months the cgminer library on github.com has seemed to be shreaded. IMHO.  
The only version of cgminer that works with the gekko miner is 4.10.0... THE BOYS are updating the cgminer code from what I can tell.

There is a version of 4.10.0 with the gekko driver installed.  You have to do all the pre-requisites...then procede throuth the compile procedures.

Where does this cgminer live?  I had to DIG in github quite a bit to find it.   Search in GitHub for this branch AJJJJ-Master  (that is 4 J's)

Using a usb 3.0 hub, adds to the mix... rpi's all/any are USB2.0 devices.  I run an Orico 20 port, USB 2.0 hub, 150WATT Powersupply.  I have 11 gekko's running at 117Ghz.  I use SLUSHPOOL / COINBASE as my pool and repository.  IMHO the drive is just an anchor...  Save all the USB power for your hub and Pi.  I'd suggest finding a real USB2.0 hub.  

I'm having the problem of it locking up my gekko setup... I'm digging here for that.  There may be 2 solutions. 1 of them is working on my Pi2b 7-port USB2.0 hub, six icarus 333mhz chips & one USB fan in the middle.  It has been running 3 days & counting.  chewing up 2.01 ghz ... hey it's a nCoin.  

This versioin of cgminer works with the gekko.  The locking up thing, I'm digging...  IMHO ditch the USB3.0 hub.  It has no advantage in a controller (aka Pi) and devices (aka Gekko's) that are all USB2.0.  good luck & please report back.  I've been running gekko's ~1.5 years & asics 333's for almost 4 (on & off... Moving & crap)

I'm stuck in an Amps-Volts-Watts loop.  It is turning into a syphon.

I'm running cgminer 4.9.2 on a PiZW, the little single cpu is sleepy when I have cgminer running.

I have a 20 port USB2.0 hub. The specifications on the hub are 150 Watts. I'm in USA 110 Volts on 60 cycles.

I had this running on a Pi3b in June 2018.  Family happened.  I come back to v4.9.2.  I've met all the dependencies, compiled it appropriately (been using cgminer with 333mhz ASIC miners for YEARS.

I have up to 11 working 2pac miners.  I have a very reliabloe 5v USB set of fans. I have a 150 Watt powered USB device.  It also has 20 ports, I'm using up to 5 so far.  Lots of PiZ's to bring up.

I'm starting with 4 sticks. U-L lists 4 devices, I can not get them to go online.  What is glaring at me?  Thank you!