staging: speakup: add send_xchar, tiocmset and input functionality for tty

[Samuel Thibault]

Okash Khawaja, on sam. 29 avril 2017 09:47:23 +0100, wrote:
> On Fri, Apr 28, 2017 at 11:23:58PM +0200, Samuel Thibault wrote:
> 
> > So I guess now we need to be more pushy with serdev.
> Haven't heard from Rob Herring yet. What do you suggest?

I'd say assume that it's fine, and work on writing a patch that works,
for more concrete discussion, and possibly mere integration by gkh
without going through Rob.

Samuel