On Mon, 2022-04-25 at 17:45 +0200, Greg Kroah-Hartman wrote: > But back to the original question, what programs would use this that > today offer direct access to USB devices through libusb? I can maybe > think of some fingerprint scanners and some flatbed scanners > (printers?) > But those are generally rare and the fingerprint scanners only have > limited access to the device already. fingerprint readers are handled through a privileged daemon for the past 14 years: https://fprint.freedesktop.org/ Looking through libusb_open() users on the Debian repo[1], I could find those types of devices that could make use of sandboxing: - all manners of single-board computers and programmable chips and devices (avrdude, STLink, sunxi bootloader, flashrom, etc.) - 3D printers - scanners - LCD "displays" - user-space webcam and still cameras - game controllers - video/audio capture devices - sensors - software-defined radios - DJ/music equipment - protocol analysers There's also Rio500 support which I'm particularly attached to, and many many more device types, including one that should eventually get a kernel driver, because prototyping in user-space in Python or Javascript is probably easier than in C. [1]: https://codesearch.debian.net/search?q=libusb_open&literal=1&perpkg=1
