Re: [libusb] How to use "android.hardware.usb.UsbManager" to request permission to use the UsbDevice with "libusb"

[chen_tso <che...@gm...>]

Hi, 

I'm relatively new to this too, but unfortunately you can't give the
permission unless you have a rooted phone. For a non-rooted phone the method
to get around this is to modify the libusb library (libusb_open()) function
to accept a file descriptor of the usb device.. which you have to first open
and obtain from the java side over to the jni side. 

Take a look at  https://github.com/martinmarinov/rtl_tcp_andro-
<https://github.com/martinmarinov/rtl_tcp_andro->   for the modifications in
the libusb library. Look for libusb_open2(...). 

For rooted phone, just use chmod command.



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