[BRLTTY] Technibraille alize 64 + debian 9

[Pierre Lorenzon]

Hi,

I installed a debian 9 on a very old PC driving a terminal
technibraille alize 64 on serial port.


The brllty service was not installed at installation process
since we did not catched the precise place to do it. Hence we
installed brltty after base installation by issuing apt-get
install brltty.


By default is suspect that brltty is configured to run in auto
mode. In fact if I plug an alva satellite 570 pro it is
immediatly detected and brllty is launched correctly. I suspect
that something is done by udev in this starting process, since
even if service is not active, it is activated by plugging the
alva terminal.

Anyway I do not want to drive the alva terminal on this PC but
an technibraille alize 64 that is not usb connected and hence
no autodetected even by udev nor by brltty itself. I modified
parameters in configuration file setting braille driver to tn
and braille device to ttyS0 (trying ttyS1 as well since there
are two serial ports on this machine and did not investigate
how udev names them). But after restarting the service nothing
happen. More precisely a brllty process is present but nothing
is displayed on the braille terminal except its own starting
message.


I must precise:

-- 1. We only change the system and nothing else i.e. no change
   on the PC nor braille terminal. This stuf has been working
   with a RH 8 (obsolete) and brllty 3.9 with parameters -b tn
   -d /dev/ttyS0 perfectly before.

-- 2. Current debian provided brltty version is 5.4 but I
   suspect that in fact tn driver has not change (we had
   discusssions about it on this list in the past.) Anyway
   things may have change in brllty upper layer making things
   no longer working with tn driver (not probable in my
   opinion.)


If someone get a technibraille alize 64 work with a recent
debian and (brltty Raphaël maybe !) please tell me how it was
configured.

If you have other configuration recommendations please tell me
as well.


Regards

Pierre