Use library in non-android environment

[andyrozman]

Hi !
So I need something like your library (core part), to work on desktop java. But your core has so many dependencies on android specific stuff that I can't even add it to the maven. Woudl it be possible to create core build that wouldn't have all that inside? I will try to exclude android stuff (kotlin,androidx.annotations), but I am not sure if afterwards library will even work.

I need to access USB device (https://protocols.glucometers.tech/lifescan/onetouch-verio-2015) and so far it seems that your library, might do what I need.

Any ideas?
Thanks for answers in advance,
Andy

[andyrozman]

So after looking at this, it seems that this library is too android "infested" to be any use to me... So I started looking at its predecessor "norani/libaums-develop". I managed to integrate old project with usb4java and run it on desktop computer (I don't care about partition part, I just need access to SCSI command interface).
So I was wondering does the old interface work (without changes you have added into this library)? So I manaaged to connect to device, but eveything fails when I try to create Block device... I am not sure if there is problem with my implementation or with usb4ava library or with your old libaums implementation... Would you have some time, for a talk or if you can answer here...

When we are creating Block device, are we expecting some data back?

`
21:08:10,674 INFO [UsbMassStorageDevice:315] - Create Block Device for 14cd:1212

21:08:10,677 INFO [Usb4JavaUsbDeviceCommunication:69] - BulkOutTransfer (data=[85, 83, 66, 67, 0, 0, 0, 0, 36, 0, 0, 0, -128, 0, 6, 18, 0, 0, 0, 36, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],length=31)

21:08:10,679 INFO [Usb4JavaUsbDeviceCommunication:83] - 31 bytes sent to device

21:08:10,679 INFO [Usb4JavaUsbDeviceCommunication:133] - BulkInTransfer (data=[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],length=36)

21:08:10,679 INFO [Usb4JavaUsbDeviceCommunication:149] - 36 bytes read from device

21:08:10,680 DEBUG [Usb4JavaUsbDeviceCommunication:154] - No data: java.nio.DirectByteBuffer[pos=0 lim=36 cap=36]

21:08:10,680 INFO [Usb4JavaUsbDeviceCommunication:133] - BulkInTransfer (data=[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],length=13)

21:08:10,680 INFO [Usb4JavaUsbDeviceCommunication:149] - 13 bytes read from device

21:08:10,680 DEBUG [Usb4JavaUsbDeviceCommunication:154] - No data: java.nio.DirectByteBuffer[pos=0 lim=13 cap=13]

21:08:10,681 ERROR [CommandStatusWrapper:81] - unexpected dCSWSignature 0
`

You can find my code on dev branch of https://github.com/andyrozman/libaums-usb4java sample is in com.atech.library.usb.libaums.usb4java.examples.ExampleCreateScsiBlockDevice.

[andyrozman]

Ok, solved... I will make release soon, if anybody needs library for desktop java.