diff --git a/src/drv/drvMz8310.h b/src/drv/drvMz8310.h
new file mode 100644
index 000000000..82896eaf2
--- /dev/null
+++ b/src/drv/drvMz8310.h
@@ -0,0 +1,74 @@
+/* drvMz8310.c */
+/* share/src/drv$Id$*/
+/*
+ * Routines specific to the MZ8310. Low level routines for the AMD STC in
+ * stc_driver.c
+ *      Author: Jeff Hill
+ *      Date:   Feb 1989
+ *
+ *      Experimental Physics and Industrial Control System (EPICS)
+ *
+ *      Copyright 1991, the Regents of the University of California,
+ *      and the University of Chicago Board of Governors.
+ *
+ *      This software was produced under  U.S. Government contracts:
+ *      (W-7405-ENG-36) at the Los Alamos National Laboratory,
+ *      and (W-31-109-ENG-38) at Argonne National Laboratory.
+ *
+ *      Initial development by:
+ *              The Controls and Automation Group (AT-8)
+ *              Ground Test Accelerator
+ *              Accelerator Technology Division
+ *              Los Alamos National Laboratory
+ *
+ *      Co-developed with
+ *              The Controls and Computing Group
+ *              Accelerator Systems Division
+ *              Advanced Photon Source
+ *              Argonne National Laboratory
+ *
+ * Modification History
+ */
+
+
+
+
+#define MZ8310_SUCCESS  0
+
+typedef long mz8310Stat;
+
+mz8310Stat mz8310_one_shot_read(
+int                     *preset,        /* TRUE or COMPLEMENT logic */
+double                  *edge0_delay,   /* sec */
+double                  *edge1_delay,   /* sec */
+int                     card,           /* 0 through ... */
+int                     channel,        /* 0 through channels on a card */
+int                     *int_source     /* (FALSE)External/(TRUE)Internal src */
+);
+
+mz8310Stat mz8310_one_shot(
+int     preset,         /* TRUE or COMPLEMENT logic */
+double  edge0_delay,    /* sec */
+double  edge1_delay,    /* set */
+int     card,           /* 0 through ... */
+int     channel,        /* 0 through channels on a card */
+int     int_source,     /* (FALSE)External/ (TRUE)Internal source */
+void    *event_rtn,     /* subroutine to run on events */
+int     event_rtn_param /* parameter to pass to above routine */
+);
+
+int     mz8310_cmd(
+unsigned        value,
+unsigned        card,
+unsigned        chip
+);
+
+int mz8310_rdata(int card, int chip);
+
+int mz8310_wdata(
+unsigned        value,
+int             card,
+int             chip
+);
+
+