[BRLTTY] How to send parameter to BRLTTY by systemd ?

[Alexandre ARNAUD]

Hi everybody! I'm trying to send paramater to BRLTTY by systemd like 
"-b". How do you do that ?
When I've tried with "/etc/init.d/brltty start -beu -dttyUSB0" nothing 
works.

My configuration :
- Debian Sid
- BRLTTY 5.2dev rev BRLTTY-5.1-794-g565e9b1b

Best regards,
Alex.