Re: [PATCH v2] usb: Un-deprecate -usbdevice (except for -usbdevice audio which gets removed)

[Samuel Thibault]

Daniel P. Berrangé, le mer. 10 mars 2021 15:31:48 +0000, a ecrit:
> On Wed, Mar 10, 2021 at 04:26:46PM +0100, Paolo Bonzini wrote:
> > On 10/03/21 16:02, Samuel Thibault wrote:
> > > > > When trying to remove the -usbdevice option, there were complaints 
> > > > > that
> > > > > "-usbdevice braille" is still a very useful shortcut for some people.
> > > > Pointer?  I missed it.
> > > 
> > > For instance
> > > https://lists.nongnu.org/archive/html/qemu-devel/2018-01/msg00693.html
> > 
> > In one sentence: "Braille is worth a special case because a subset of our
> > user base (blind people) will use it 100% of the time, plus it is not
> > supported by libvirt and hence virt-manager".
> 
> If simplicity of enabling braille support is critical, we could get
> something even simpler than "-usbdevice braille", and just provide
> a bare  "-braille" with no args required as a "do the right thing"
> option ?

That was discussed a bit earlier in the thread:

https://lists.nongnu.org/archive/html/qemu-devel/2018-01/msg00681.html
https://lists.nongnu.org/archive/html/qemu-devel/2018-01/msg00686.html
https://lists.nongnu.org/archive/html/qemu-devel/2018-01/msg00687.html

Just like keyboard/mouse, one would still want to specify whether the
braille device is to be connected through usb or serial, so at least
"-braille usb" and "-braille serial".

Note

https://lists.nongnu.org/archive/html/qemu-devel/2018-01/msg00689.html

Paolo wrote:
> Adding magic to "-device usb-braille" that creates both a
> front-end and a back-end is completely the opposite of sane...

The thing is: creating one without the other does not make sense.

Samuel