1config USB_EMUL 2 bool "Support for USB device emulation" 3 depends on SANDBOX 4 select DM_USB 5 select USB_HOST 6 help 7 Since sandbox does not have access to a real USB bus, it is possible 8 to use device emulators instead. This allows testing of the USB 9 stack on sandbox without needing a real device, or any host machine 10 USB resources. 11