I want to have an IN EP and an OUT EP under the same interface, but when I write

MyDevice_::MyDevice (void): PluggableUSBModule(2, 1, epType) {
 epType[0] = EP_TYPE_INTERRUPT_IN;
 epType[1] = EP_TYPE_INTERRUPT_OUT;
 PluggableUSB().plug(this);
}

for example (epType has size of 2), the pluggedInterface and pluggedEndpoint are all set to 0, and the OS fails to detect my interface (not showing up on lsusb -vd VID:PID).

Using numEps = 1 and numIfs = 1 the OS detects my interface but I know it will not work properly.

EDIT: Possibly related: #4005