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  1. Hi Folks, I'm testing the M4 board with Armbian Buster, I'm having the following problems with the GPIO: How can I use gpio without root? I've checked and there isn't a /dev/gpiomem device so I can give permissions to other users. Only a few of the GPIO pins can be set. Most of them don't show up as configurable through gpio readall. A few of them show as ALT and although I can change their mode (input / output), I cannot change/read their value, it seems those are shared with i2c-3, so this can be the problem, but I don't know how to disable i2c-3 and use them. Also, can all the 6 cores work at the same time? Or the BIG.little architecture enforces choosing between the fast or the slow ones? Best regards,
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