Thread: Onyx Boox as monitor
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Old 10-03-2019, 05:50 AM   #701
mdp
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Quote:
Originally Posted by M4H35H View Post
Why not use a "data only" USB cable?
Preliminarly: finding them on the market. Could you please post some information about where to buy them data-only USB cables?

And in speculation: USB cables in which the "VCC", power (+5 volt) cable is disconnected (the rightmost when the four pins of the "flat" USB-A plug are facing upwards: in sequence they are "Ground, Data+, Data-, Power"), do not necessarily work - according to specifications, they easily may not.

But Android does have a flag which would disable battery charging (I think, along the lines of `echo 0 > /sys/class/power_supply/usb/device/charge` - not to be confused with other flags that only simulate power disconnection). But that is unavailable.

I think that, while there was discussion here about such cables in the past, nobody has tried them and posted results.
Last edited by mdp; 10-03-2019 at 05:53 AM.
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