[BRLTTY] BrailleSense U2 mini key assigments

[Sergei V. Fleytin]

Hello,

While using bBrailleSense U2 Mini by Hims as a braille display with 
brltty on Android, I can not find which keys are assigned (if any) to 
simulate function keys on a PC keybord. I mean such keys as f1, f2, f3, 
etc. It is necessary, because these keys are assigned in brltty to 
perform generic keypresses on adroid devices, such as simulating home, 
back, recent apps and other buttons. Pressing space with routing keys 
does not help.

Any help would be appreciated.

WBR,

Sergei.