I would be willing to flash a kernel or even a ROM, but I need a solution that will minimize the rework of setting everything up and reinstalling her apps. When I unlocked and rooted, I had to rebuild her homescreens from memory. She was not happy about that.
Is there a kernel that I can flash that will enable OTG with minimal interruption?
I have finally unlocked and rooted my wife's Nexus 7 (1st gen). Thanks Wug! Now I need to work on support for OTG file access. I tried stickmount app but it didn't get me anywhere. I am using an OTG cable that has proven good with my Galaxy S4, so I assume it would work for the N7. TWRP recovery does see it and I was able to do a backup to the OTG/USB, so that also proves it works.