diff --git a/gpiokeyer.c b/gpiokeyer.c
index 6232b2e..bd22131 100644
--- a/gpiokeyer.c
+++ b/gpiokeyer.c
@@ -613,9 +613,9 @@ int open_key_gpiokeyer(const char * name)
     int parm[NUM_PARMS];
 
     /* KC4UPR:  Read the GPIO keyer name, and parse out the pins for 
-     * left paddle, right paddle, keyer out, and T/R switch.  The last 
-     * two can be zero if that functionality is not desired, but they 
-     * must be present in the name string.
+     * left paddle, right paddle, keyer out, T/R switch, and "hang time"
+     * in milliseconds.  'Keyer out' and 'T/R switch' pins two can be
+     * zero if that functionality is not desired.
      */
     switch(sscanf(name, "gpio:%d,%d,%d,%d,%d", &parm[0], &parm[1], &parm[2], &parm[3], &parm[4])) {
         case 5:     // v0.2