Yuri Benditovich

@YanVugenfirer it is not a trivial change but I think it can be done with subsystem/subvendor id in the device (exactly as the spec allows) and with the driver that...

@YanVugenfirer and another option (probably requiring additional integration) is the vendor-specific configuration in the configuration chain, i.e. little more complicated but more flexible

@heywji Did you try to reproduce the problem using virtio-net adapter on QEMU and Windows guest?

@zjmletang !IUC, we need the steps to reproduce the case when we get more than 256 fragments.

@AiCabal Which kind of transfer you try to cancel by aborting the pipe?

@P5-2005 Disclaimer: If I'm not mistaken: Aborting of the control pipe does not do anything and this does not depend on UsbDk. Control transaction has its own timeout of 5...

@Jevon-V For Win7: do you have https://learn.microsoft.com/en-us/security-updates/SecurityAdvisories/2015/3033929?redirectedfrom=MSDN installed?

@Jevon-V 1.0.21 behaves the same?

@Jevon-V I suggest to try manual install, see https://github.com/daynix/UsbDk/wiki/Troubleshooting-UsbDk-installation

@Jevon-V which WDF you have on your Win7 (check the version of drivers\wdf01000.sys)?