On 04/01/2018 18:45, Samuel Thibault wrote: > Paolo Bonzini, on jeu. 04 janv. 2018 18:11:00 +0100, wrote: >> On 04/01/2018 16:56, Samuel Thibault wrote: >>>> However, adding magic to "-device usb-braille" that creates both a >>>> front-end and a back-end is completely the opposite of sane... >>> Well, this is also what happens with -device usb-mouse, usb-kbd etc.: >>> they also plug with keyboard & mouse pipes of the qemu graphical >>> frontend. braille is just the same vein for the user. >> >> No, they don't create a new UI object magically that wasn't there >> before. They just let you add a device, e.g. a USB tablet, that listens >> on an _existing_ UI (GTK+ or SDL or similar). > > Technically for the qemu developper, yes. > > But for the user, no.
That's not true. With or without "-usbdevice tablet", you use the same mouse or keyboard device as the input source. Paolo
