In case you ever want to debug a libusb program via ltrace, here's a
file which you can save as ~/.ltrace.conf . This will help ltrace to
decipher some of the parameters to libusb calls.
Admittedly, it's not as useful as strace can be (since ltrace doesn't
know how to dump structures or arbitrary binary data), but ltrace
gives a bit more visibility into the actual libusb library calls.
- Charles Lepple