diff --git a/src/dev/devAiXy566DiL.c b/src/dev/devAiXy566DiL.c
new file mode 100644
index 000000000..df9682479
--- /dev/null
+++ b/src/dev/devAiXy566DiL.c
@@ -0,0 +1,132 @@
+/* devAiXy566DiL.c */
+/* share/src/dev $Id$ */
+
+/* devAiXy566DiL.c - Device Support Routines */
+
+
+#include	<vxWorks.h>
+#include	<types.h>
+#include	<stdioLib.h>
+
+#include	<alarm.h>
+#include	<cvtTable.h>
+#include	<dbDefs.h>
+#include	<dbAccess.h>
+#include	<devSup.h>
+#include	<link.h>
+#include	<module_types.h>
+#include	<aiRecord.h>
+
+long init_record();
+long get_ioint_info();
+long read_ai();
+long special_linconv();
+
+struct {
+	long		number;
+	DEVSUPFUN	report;
+	DEVSUPFUN	init;
+	DEVSUPFUN	init_record;
+        DEVSUPFUN       get_ioint_info;
+	DEVSUPFUN	read_ai;
+	DEVSUPFUN	special_linconv;
+} devAiXy566DiL={
+	6,
+	NULL,
+	NULL,
+	init_record,
+	get_ioint_info,
+	read_ai,
+	special_linconv};
+
+
+static long init_record(pai)
+    struct aiRecord	*pai;
+{
+    char message[100];
+    short value;
+    struct vmeio *pvmeio;
+    long status;
+
+    /* ai.inp must be an VME_IO */
+    switch (pai->inp.type) {
+    case (VME_IO) :
+	break;
+    default :
+	strcpy(message,pai->name);
+	strcat(message,": devAiXy566DiL (init_record) Illegal INP field");
+	errMessage(S_db_badField,message);
+	return(S_db_badField);
+    }
+
+    /* set linear conversion slope*/
+    pai->eslo = (pai->eguf -pai->egul)/4095.0;
+
+    /* call driver so that it configures card */
+    pvmeio = (struct vmeio *)&(pai->inp.value);
+    if(status=ai_driver(pvmeio->card,pvmeio->signal,XY566DIL,&value)) {
+	strcpy(message,pai->name);
+	strcat(message,": devAiXy566DiL (init_record) ai_driver error");
+	errMessage(status,message);
+	return(status);
+    }
+    return(0);
+}
+
+static long get_ioint_info(pai,io_type,card_type,card_number)
+    struct aiRecord     *pai;
+    short               *io_type;
+    short               *card_type;
+    short               *card_number;
+{
+    if(pai->inp.type != VME_IO) return(S_dev_badInpType);
+    *io_type = IO_AI;
+    *card_type = XY566DIL;
+    *card_number = pai->inp.value.vmeio.card;
+    return(0);
+}
+
+static long read_ai(pai)
+    struct aiRecord	*pai;
+{
+	short value;
+	struct vmeio *pvmeio;
+	long status;
+
+	
+	pvmeio = (struct vmeio *)&(pai->inp.value);
+	status=ai_driver(pvmeio->card,pvmeio->signal,XY566DIL,&value);
+        if(status==-1) {
+		status = 2; /*don't convert*/
+		if(pai->nsev<MAJOR_ALARM ) {
+                	pai->nsta = READ_ALARM;
+                	pai->nsev = MAJOR_ALARM;
+		}
+		return(status);
+        }else if(status==-2) {
+                status=0;
+                if(pai->nsev<MAJOR_ALARM ) {
+                        pai->nsta = HW_LIMIT_ALARM;
+                        pai->nsev = MAJOR_ALARM;
+                }
+        }
+	if(status!=0) return(status);
+	/*read into hardware as -0x7ff to +0x7ff */
+	/* normalize to 0 - 0xfff		*/
+	value = value + 0x800;
+	/* remove the sign bit */
+	value &= 0xfff;
+	pai->rval = value;
+	return(status);
+}
+
+static long special_linconv(pai,after)
+    struct aiRecord	*pai;
+    int after;
+{
+
+    if(!after) return(0);
+    /* set linear conversion slope*/
+    pai->eslo = (pai->eguf -pai->egul)/4095.0;
+    return(0);
+}