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
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