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Steffen Breitbach dfu-util at bebef.deOkay, I think I'll file a ticket/bug in Sourceforge then. On 17.2.2021 13:20, Steffen Breitbach wrote: > Hi everyone! > > I'm not sure what to make of this, so I thought it's probably a good > idea to ask here first before filing a bug. > > I'm flashing a GigaDevice GD32VF103TB (Pinecil) with dfu-util0.10. I > have compiled the latter from source, as there are supposedly some > issues with 0.9 and that's not available yet. > > I have two machines, a Dell notebook and a Razer notebook. Both use > the same USB3/Thunderbolt dock. > With the Dell machine, I get this output every time I run dfu-util like > this: > > sudo ./dfu-util-0.10/src/dfu-util -l > dfu-util 0.10 > > [cut the disclaimer] > > Found DFU: [28e9:0189] ver=0100, devnum=17, cfg=1, intf=0, > path="5-2.1", alt=1, name="@Option Bytes /0x1FFFF800/01*016Be", > serial="3TBJ" > Found DFU: [28e9:0189] ver=0100, devnum=17, cfg=1, intf=0, > path="5-2.1", alt=0, name="@Internal Flash /0x08000000/128*001Kg", > serial="3TBJ" > > However, when I connect it to my Razer, regardless of "directly" or > via the dock, the behaviour is like this: > > FIRST run of dfu-util -l: > sudo ./dfu-util-0.10/src/dfu-util -l > dfu-util 0.10 > > [cut the disclaimer] > > dfu-util: Cannot open DFU device 28e9:0189 > > From that, I just get nothing at all, just as if no dfu device was > connected at all. > > Looking into lsusb, the device is present before running dfu-util and > gone after running dfu-util. Like I said, I have tested several > connections, so my suspicion now is, that - for whatever reason - > running dfu-util on my Razer makes the SoC "crash" so that it won't be > recognized by the computer any more. > However, I don't see a reason for this. I have checked the dfu-util > binaries, they are identical. Also libusb versions and even the > kernels are identical. > > So, I'm not sure this is a bug in dfu-util and I have no expertise in > debugging this any further :( > > What could I do from here? > > Cheers > Steffen