The Elipsa 2E runs on a new SoC, as of writing this, the only things that support it are FBInk, KOReader & rmkit; and there may be dragons in hiding, because I don't have access to the device. On the upside, rmkit's author has one, though
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USBNet will require someone with the device to figure out the proper configfs setup to handle it right, so, that's an expected failure, too. Patches very welcome for that, as, again, I don't have the device
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(Sidebar: you're in the wrong forum, this belongs in the Dev subforum).