Initial revision

lib/syslib/sys_in.c

@@ -0,0 +1,22 @@
+#include "syslib.h"
+
+/*===========================================================================*
+ *                                sys_in				     *
+ *===========================================================================*/
+PUBLIC int sys_in(port, value, type)
+int port; 				/* port address to read from */
+unsigned long *value;			/* pointer where to store value */
+int type;				/* byte, word, long */
+{
+    message m_io;
+    int result;
+
+    m_io.DIO_TYPE = type;
+    m_io.DIO_REQUEST = DIO_INPUT;
+    m_io.DIO_PORT = port;
+
+    result = _taskcall(SYSTASK, SYS_DEVIO, &m_io);
+    *value = m_io.DIO_VALUE;
+    return(result);
+}
+