dtusb module

[Klarich , Terry J .]

My plan is to provide both driver and libusb support.  The module will check to 
see if the dtusb kernel module is loaded.  If not, libusb will be used.

My long-term plan is to see if I can get speekup to use the kernel driver so 
boot up and shutdown are accessible.  I would like the dtusb module to work 
with speakup to both release and take over the kernel driver as 
speech-dispatcher is started.  We'll see how it goes.

I have been doing some debugging.  But, have not resolved my problem as yet.  
Speech dispatcher is starting my module just fine.  SD sends dtusb a "init\n".  
dtusb receives it.  Dtusb then sends a "299-dtusb: Initialized\n".  SD never 
receives it or acknowledges it (not sure).

Here's the log info:

Speech-dispatcher.log:
[Wed Mar  4 17:26:03 2015 : 239741] speechd:  Initializing output module dtusb 
with binary /usr/lib64/speech-dispatcher-modules/sd_dtusb and configuration 
/etc/speech-dispatcher/modules/dtusb.conf
[Wed Mar  4 17:26:03 2015 : 239753] speechd:   Output module is logging to file 
/var/log/speech-dispatcher/dtusb.log
[Wed Mar  4 17:26:03 2015 : 240073] speechd:  Module dtusb loaded.
[Wed Mar  4 17:26:03 2015 : 240092] speechd:    Trying to initialize dtusb.
[Wed Mar  4 17:26:03 2015 : 240107] speechd:     Command sent to output module: 
|INIT
| (0)

I know SD is waiting  because if I configure speech.conf to load something 
after sd_dtusb, nothing happens.

Dtusb.log:
[root at oke11528 speech-dispatcher]# cat dtusb.log
starting up
Waiting for INIT
recieved: INIT
send: 299-STUSB: Initialized successfully
Reading configuration file
send: 299 dtusb version 0.1, ready

At this point, dtusb is waiting for a command.  SD has not acknowledged the 299 
statements.

Is there something I need to do to the pipe as a module for stdout?  Got any 
ideas where to look?  I used sd_dummy as a template to make sure I understood 
the documentation.  When running dtusb from the commandline, it works as 
expected.

Many THANKS!
Terry
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