OpenHMD: Segmentation fault in rift.c/get_device_list with VR-Tek WVR2 on Ubuntu

After compiling OpenHMD from master with cmake in debug mode, I ran the simple example with the headset plugged in and got a segmentation fault. Here’s my backtrace from ddd:

in main () at simple.c:58
in ohmd_ctx_probe () at openhmd.c:120
in get_device_list () at rift.c:1081
wcscmp () at wcscmp.S:207

The relevant line in rift.c is:

if((wcscmp(cur_dev->manufacturer_string, L"Oculus VR, Inc.") == 0) &&

I figure something is wrong with cur_dev->manufacturer_string. The relevant line from lsusb is:

Bus 001 Device 007: ID 2833:0001

It looks like the name is empty. I hope that isn’t the source of the segfault.

I should also note that I have installed OpenHMD from apt and the experimental SteamVR drivers from Valve. I also added their udev rules from here but didn’t mess with OpenHMD udev rules. xrandr --props reports the headset as non-desktop.

EDIT: When I prepend if(cur_dev->manufacturer_string && to the above, the segfault moves to vrtek.c where it checks cur_dev->manufacturer_string against L"STMicroelectronics". It’s pointless to keep kicking this can down the road, so I would suggest assigning manufacturer_string (and others?) to an empty string if null earlier so as to avoid segfaulting wcscmp.

EDIT 2: Hmm. What’s hid_enumerate?