I use several EasyDAQ USB16PRMxN cards ( along with several Phidgets 1073 SBCs). Everything works fine using Yosemite . But I just tried to upgrade to El Capitan.
With El Capitan and no other changes, Indigo could no longer communicate with any of the EasyDAQ cards. After several restarts, including powering down, I finally restored the system to Yosemite. Now everything works again. My Indigo version is 6.1.4 and the EasyDAQ driver is v1.1.7.
Has anyone else had this problem with EasyDAQ USB cards?