My eink ioctl() updates now work for 5.1.0 firmware, which uses a critical internal structure that changed layout but kept the same name, and broke compatibility with 5.0.x firmware. Worse, the eink header file changed and it is now incompatible with 5.0.x firmware. I removed the header files from gmplay-1.5, and that gmlib code will be used in future versions of all of my eink C code.
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