[BRLTTY] how to start and stop brltty

[Didier Spaier]

Because simple is not funny, John :D

As an aside I have also an issue with 6.3 in Slint, people can't get brl 
through
orca at boot, they have to first kill the daemon with a signal 9 (15 doesn't
work). I have a power user testing to investigate further right now (I am
sighted, do not read Braille and don't have display anyway). Not using 
systemd
in Slint so could be a completely unrelated issue though. But i suspect 
USB is
involved as if I start brltty -b tt -d /dev/tty2 I do get the expected 
output
in /dev/tty2.

Best,
Didier

Le 22/02/2021 à 07:18, John Covici a écrit :
> A bit more information, both pcspkr and uinput are loaded, so I don't
> know why those modprobes are failing and unplugging and replugging the
> braille device does not do anything.
> 
> I think it keeps trying to start a braille device instance, but its
> always failing, not sure why.  It seems to be unable to execute
> /libexec/brltty/systemdd-wrapper, but its there.  Very strange.  Why
> is this so complicated?
> 
> 
> On Sun, 21 Feb 2021 22:35:18 -0500,
> Dave Mielke wrote:
>>
>> [quoted lines by John Covici on 2021/02/21 at 15:58 -0500]
>>
>>> Also, looking at the only service unit, it says RefuseManualStart=true
>>> so I seem to have no way to just say systemctl start brltty
>>
>> Okay, I understand your question, now. If you really want to just start brltty
>> then start the brltty.path unit.
>>
>> Just starting brltty, these days, isn't necessarily the right thing to do. This
>> is because udev also starts brltty. If you don't have brltty's udev rules then
>> just starting brltty is okay. If, however, you do have them then you should
>> configure the general brltty to not look for USB devices. An easy way to do
>> this would be to have this line in brltty.conf:
>>
>>     braille-device bluetooth:
>>
>> By the way: It's often handy to check the description within a systemd unit
>> file. The brltty.path unit contains this line:
>>
>>     Description=Default BRLTTY Instance
>>
>> -- 
>> I believe the Bible to be the very Word of God: http://Mielke.cc/bible/
>> Dave Mielke            | 2213 Fox Crescent | WebHome: http://Mielke.cc/
>> EMail: Dave at Mielke.cc  | Ottawa, Ontario   | Twitter: @Dave_Mielke
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>>
>