USBKit

what:
hacker boy tries to connect nexus 6p to op-1

why:
chill beats, and libaums doesn't support FAT16

how:
matthias treydte's fat32-lib

will it work:
let's see

license:
MIT (edit:...might end up GPL if test 3 works out)

ways to go:

1. use getExternalFilesDir for the disk, get root of that, then pass the File to fat32-lib
2. use UsbManager, use openAccessory, convert ParcelFileDescriptor to File somehow...?
3. use https://github.com/alt236/USB-Device-Info---Android to get usb device path -> File
4. use UsbDevice and go through the UsbInterfaces and UsbEndpoints for clues
5. use getExternalFilesDir, get root of given path, request File for root path

ways to go, mark two:

1. find a path, make a file, pass to fat32-lib
2. find the device, go from there

passes:

1. test 1, find a path: getExternalFilesDir
2. test 2, find the device: UsbManager
3. test 3, libaums with jnode fs implementation set

hail mary's:

1. usbdevice -> usbdeviceconnection -> getfiledescriptor -> fileinputstream -> getfilechannel, modify FileDisk to use raw filechannels instead of only from File

final update got FAT16 reads working with test 3, using libaums + jnode-fs. nice. no need for this then.