Segmentation fault on every function call about python-libusb1 HOT 3 CLOSED

Unfortunately I do not have access to macOS, so it will be difficult for me to debug this issue.

What version of libusb1 are you using ? What version of python-libusb1 ? Is there any way to get a callstack of the point at which the segfault occurs ? (maybe running python under gdb)

About resetDevice, while it should work, I can imagine it could cause issues (IIRC the device gets a new address, and I do not remember off the top of my head if the handle remains valid). For the purpose of dividing the issue, claimInterface could be an interesting method to try: it does not involve the USB bus, only the kernel state. String descriptor retrieval (ex getManufacturer) would be another, which should involve the USB bus (...unless macOS caches these, but I believe it should not).

About _bulkTransfer, this is not public API. It would be best to use the corresponding public method, bulkWrite or bulkRead.

from python-libusb1.

@Mini-Exploit

Please post the full python test code. I have access to Mac Mini M1 and I can try to check if there is a issue or not.

from python-libusb1.

Closing this issue as it has been idle for a year now without the beginning of a lead.

from python-libusb1.