Modified comments

iocBoot/iocvxWorks/ipUnidig.cmd

@@ -14,10 +14,14 @@
 # portName  = name to give this asyn port
 # carrier     = IPAC carrier number (0, 1, etc.)
 # slot        = IPAC slot (0,1,2,3, etc.)
-# msecPoll    = polling time for input bits in msec.  Default=100.
+# msecPoll    = polling time for input bits that don't use interrupts in msec.
 # intVec      = interrupt vector
 # risingMask  = mask of bits to generate interrupts on low to high (24 bits)
 # fallingMask = mask of bits to generate interrupts on high to low (24 bits)
+
+# Note: We have the quadEM connected to channel 3 (starting from 1).  Its driver will
+# enable interrupts on one edge of the pulses, so we don't need to do it here.  All other
+# inputs generate interrupts on both rising and falling edge
 initIpUnidig("Unidig1", 0, 1, 2000, 116, 0xfffffb, 0xfffffb)
 
 # IP-Unidig binary I/O