[BRLTTY] Probable bug for Focus 40 keyboard input support in svn

[Sergei V. Fleytin]

Hello, list!

I recently compiled svn snapshot of brltty and run it for some time
without any problem. But yesterday, when I needed to type something
using my Focus braille keyboard I noticed that instead of normal
behaviour pressing braille keys produce garbage. I am using revision
4916. Please, let me know which information I should to provide to
help us to trace problem.

Thanks and happy new year to all of you!

Sergei.