[BRLTTY] Android BRLTTY problem

[Andrew Jelly]

On 02/17/2015 12:23 AM, Dave Mielke wrote:
> [quoted lines by Andrew Jelly on 2015/02/16 at 13:54 +0100]
>
>> I tried to use BRLTTY (version 5.2) for Android (4.0.3) but for
>> different displays, it has different behaviors.
>> One display - Focus 14 from Freedom Scientific is connected properly
>> and running.
>> Another - BraillePen12T from Harpo cannot connect.
>
> Are you letting the driver auto-detect, or have you selected a specific driver?
> If you've selected a specific driver, which one?

I used "auto-detect driver selection".

> The BP12 is interesting in that it uses protocols implemented by other drivers.
> Older BP12s need the Voyager driver whereas newer ones default to needing the
> Alva driver (although there's a way to switch them back to the Voyager
> protocol).

Ok, after selecting the "Voyager" driver it worked better.
Although, I did not find the "Home" and "Back" default Android keys :)

> BRLTTY uses the device's Bluetooth device name to direct it to the correct
> driver. I don't yet know what the Bluetooth name of a Braille Pen looks like,
> so it isn't in brltty's Bluetooth device name table. Can you send me exactly
> what it's Bluetooth device name is. Note that things like case and where spaces
> are are important.

Exact name in my case:
EL12-00:A0:96:16:81:A3


>> adb logcat print an error
>> either:
>> E/org.a11y.brltty.android.BluetoothConnection (1068): Bluetooth
>> connect failed:
>> 00:A0:96:16:81:A3: [JSR82] connect: Connection is not created (failed
>> or aborted).
>>
>> or:
>> D/org.a11y.brltty.android.BluetoothConnection (1068): Bluetooth input
>> exception: 00:A0:96:16:81:A3: [JSR82] read: read () failed.
>
> I can't see enough in your logs to know exactly what brltty was doing at the
> time. Could you please go into brltty's Advanced Settings screen and set the
> Log Level to Debug, as well as enable the log category named Bluetooth I/O?

My log level was on "Notice", and I could not see the message

"D/brltty  (  403): braille driver not found"

Mea culpa.


> One thing your log does contain is a lot more Android debug information for
> Bluetooth. I don't (yet) know how to get it to do that. Would you mind giving
> me a lesson (or more) on how to get Android to log this additional information?
>

I use this command like:

adb logcat | grep -i -E "(brltty|bluetooth)"

But, it must be known that I have access to Android's source code and I 
can insert a debug print wherever I need.
This will not work for all users :(

Anyways, thank you for your help!

/wbr, Andrew

-- 
Local Observer