Re: active sensing

On Fri, Jul 01, 2016 at 11:40:21PM -0400, Luc Tanguay wrote:
> Hi.
> 
> I'm using midish to send program change to DR-3 and DD-65 drum machines (to
> change drum kits from Linux scripts).  I have one issue when I send PC to DR-3
> because midish sends Active Sensing when it flushes the output buffer.  When
> DR-3 receives Active Sensing it stops if it does not continue to receive such
> messages in a timely fashion. 
> 
> So, (1) why midish sends Active Sensing? (2) Can it be turned off?
> 
> Here's how I use midish in a bash script:
> 
>     midi_dev_port="36:0"
>     pc=2 # from 0 to 99
>     midish -b <<END
>     dnew 0 "$midi_dev_port" wo
>     onew dr3 {0 9}
>     oaddev {pc dr3 $pc}
>     p
>     END
> 

there's no knob to turn it off.  You could just comment the code
sending the active sensing until we add the knob to control it

Index: mididev.c
===================================================================
RCS file: /var/anoncvs/midish/midish/mididev.c,v
retrieving revision 1.54
diff -u -p -u -p -r1.54 mididev.c
--- mididev.c	13 Sep 2013 08:47:06 -0000	1.54
+++ mididev.c	3 Jul 2016 09:03:05 -0000
@@ -515,9 +515,11 @@ mididev_puttic(struct mididev *o)
 void
 mididev_putack(struct mididev *o)
 {
+#if 0
 	mididev_out(o, MIDI_ACK);
 	if (o->sync)
 		mididev_flush(o);
+#endif
 }
 
 /*