[BRLTTY] 5.6

[Mgr. Janusz Chmiel]

Dear Mr Mielke,
     I wish you good Saturday morning.
Here is procedure to reproduce The USB Braille device issue on Brltty 
for Android.
Use Brltty and when system do not send data to Braille device, 
disconnect it.
Try to use Talkback as normally for several minutes. You should get 
warning from Android System UI, Brltty has stop working. Sure, Brltty 
must be enabled from Accessibility dialog window as The accessibility 
service.
App will be terminated.
You can also turn display on and off when device have been disconnected.
I Am using Android 6.0 with latest stable updates.
I will also contact Lenovo corporation today since they have 
incorporated new feature to their Android release. In The accessibility 
settings, there is special function, enable fast Startup. It is 
something like hybernate function in Windows.
After using this function and when I turn on The tablet, Brltty also 
stop to work. Even if Tieman Braille Voyager is connected to USB port.
I hope, that Lenovo will inform Me, which programmers techniques must 
every developer make so this app will work after turning on The device 
when it have been turned off after enabling The feature enable fast 
startup in The accessibility dialog Window.
But this will be complex and it will depend, if Lenovo will have good 
will to inform me or other developers about their feature and how to 
make app which will be compatible with this.
Using this function has big advantage. User can turn off The tablet and 
it will be active after several seconds. It also depend on, if it is 
official feature which is build inside Android 66.0 kernel, or if it is 
specific Lenovo kernel Module or path.