Add USB support to applications that have optional USB support (e.g. cups)
| Package | “usb” Flag Description |
|---|---|
| app-crypt/ekeyd | Build the libusb-based userland daemon for accessing the EntropyKey (alternative to the CDC USB driver). It is suggested to use this option by default, as the CDC driver in the kernel often seems to be fragile (or the gadget implementation on the EntropyKey is too buggy), and can cause various problems. |
| app-crypt/gnupg | Build direct CCID access for scdaemon; requires dev-libs/libusb. |
| app-emulation/qemu | Enable USB passthrough via dev-libs/libusb |
| app-mobilephone/gammu | Enable USB suport |
| media-gfx/cura | Access 3D printers via USB |
| sys-apps/hwids | Install the usb.ids database |
| sys-firmware/ipxe | Build a bootable USB image for using PXE |