/usr/share/doc/libusb-dev/html/ is in libusb-dev 2:0.1.12-30.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/libusb-dev/html/api-device-interfaces.html
/usr/share/doc/libusb-dev/html/api-return-values.html
/usr/share/doc/libusb-dev/html/api-synchronous.html
/usr/share/doc/libusb-dev/html/api-timeouts.html
/usr/share/doc/libusb-dev/html/api-types.html
/usr/share/doc/libusb-dev/html/api.html
/usr/share/doc/libusb-dev/html/examples-code.html
/usr/share/doc/libusb-dev/html/examples-other.html
/usr/share/doc/libusb-dev/html/examples-tests.html
/usr/share/doc/libusb-dev/html/examples.html
/usr/share/doc/libusb-dev/html/function.usbbulkread.html
/usr/share/doc/libusb-dev/html/function.usbbulkwrite.html
/usr/share/doc/libusb-dev/html/function.usbclaiminterface.html
/usr/share/doc/libusb-dev/html/function.usbclearhalt.html
/usr/share/doc/libusb-dev/html/function.usbclose.html
/usr/share/doc/libusb-dev/html/function.usbcontrolmsg.html
/usr/share/doc/libusb-dev/html/function.usbdetachkerneldrivernp.html
/usr/share/doc/libusb-dev/html/function.usbfindbusses.html
/usr/share/doc/libusb-dev/html/function.usbfinddevices.html
/usr/share/doc/libusb-dev/html/function.usbgetbusses.html
/usr/share/doc/libusb-dev/html/function.usbgetdescriptor.html
/usr/share/doc/libusb-dev/html/function.usbgetdescriptorbyendpoint.html
/usr/share/doc/libusb-dev/html/function.usbgetdrivernp.html
/usr/share/doc/libusb-dev/html/function.usbgetstring.html
/usr/share/doc/libusb-dev/html/function.usbgetstringsimple.html
/usr/share/doc/libusb-dev/html/function.usbinit.html
/usr/share/doc/libusb-dev/html/function.usbinterruptread.html
/usr/share/doc/libusb-dev/html/function.usbinterruptwrite.html
/usr/share/doc/libusb-dev/html/function.usbopen.html
/usr/share/doc/libusb-dev/html/function.usbreleaseinterface.html
/usr/share/doc/libusb-dev/html/function.usbreset.html
/usr/share/doc/libusb-dev/html/function.usbresetep.html
/usr/share/doc/libusb-dev/html/function.usbsetaltinterface.html
/usr/share/doc/libusb-dev/html/function.usbsetconfiguration.html
/usr/share/doc/libusb-dev/html/functions.html
/usr/share/doc/libusb-dev/html/index.html
/usr/share/doc/libusb-dev/html/intro-overview.html
/usr/share/doc/libusb-dev/html/intro-support.html
/usr/share/doc/libusb-dev/html/intro.html
/usr/share/doc/libusb-dev/html/preface.html
/usr/share/doc/libusb-dev/html/ref.bulk.html
/usr/share/doc/libusb-dev/html/ref.control.html
/usr/share/doc/libusb-dev/html/ref.core.html
/usr/share/doc/libusb-dev/html/ref.deviceops.html
/usr/share/doc/libusb-dev/html/ref.interrupt.html
/usr/share/doc/libusb-dev/html/ref.nonportable.html