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rbino / ems-qart

A Qt application to flash EMS 64M cartridges
GNU General Public License v3.0
179 stars 13 forks source link

`LIBUSB_ERROR_IO` during connecting #18

Open e7p opened 2 years ago

e7p commented 2 years ago

Whenever I try to connect to my EMS Cartridge with ems-qart on Arch Linux, after a couple of seconds, the GUI opens up however not connected to the cart. In the Terminal the error reads:

Failed to open device, libusb error:  LIBUSB_ERROR_IO

It is definitely unrelated to the udev-rules or the like, because without the udev rule the error message reads LIBUSB_ERROR_ACCESS.

How to solve this? My cart usually worked with the official Windows tool and the PCB reads "GB64USB-12".

rbino commented 2 years ago

How recently did you try to use the cart with the official Windows tool? Can you try with that?

LIBUSB_ERROR_IO makes me think of a problem at the cart level (which is not so uncommon with EMS Carts, even the ones that were working fine until they don't).

e7p commented 2 years ago

Right now I tested the Windows Tool and it at least also didn't show stored games and couldn't dump the savegame.

However, I also found out, that ems-qart runs perfectly fine under Windows. So if that is a unique bug only happening with my cart, this could be closed. I will at least test ems-qart again under Linux when I rebooted next time.

rbino commented 1 year ago

@e7p do you still have the issue? Could you try the workaround mentioned in #21 so we can determine if it's the same issue?