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Quoth · 10-21-2019, 12:22 PM

Some readers don't actually have OTG hardware, only USB slave.
Without a schematic and the CPU details (the USB ports are often part of the CPU SoC), we can't tell. Obviously the Kindle PW3 has OTG USB hardware and some sort of Kernel support.

10-21-2019, 12:22 PM	#5
Quoth Still reading Posts: 14,156 Karma: 105212035 Join Date: Jun 2017 Location: Ireland Device: All 4 Kinds: epub eink, Kindle, android eink, NxtPaper	Some readers don't actually have OTG hardware, only USB slave. Without a schematic and the CPU details (the USB ports are often part of the CPU SoC), we can't tell. Obviously the Kindle PW3 has OTG USB hardware and some sort of Kernel support.