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

[Samuel Thibault]

Hello,

Okash Khawaja, on sam. 29 avril 2017 14:28:01 +0100, wrote:
> Sounds good! We have all the patches. Apart from the patch you are
> reviewing in this thread there is
> http://linux-speakup.org/pipermail/speakup/2017-April/060645.html
> which is not yet signed off (we haven't had feedback on decext).

Ah, sorry, I missed adding my Reviewed-by tag, now done so.

> Do you want me to post all of them here as one patch set? Because since
> I last posted, one of them has been upstreamed.

I'd say no need for a new post for review, they are fine. Posting them
for people to be able to test them could be useful, though.

Samuel