3 files changed, 40 insertions, 0 deletions
diff --git a/cpukit/sapi/include/confdefs.h b/cpukit/sapi/include/confdefs.h
index 0dda508462..75e6a23a19 100644
--- a/cpukit/sapi/include/confdefs.h
+++ b/cpukit/sapi/include/confdefs.h
@@ -300,6 +300,15 @@ rtems_driver_address_table Device_drivers[] = {
 #endif  /* CONFIGURE_HAS_OWN_DEVICE_DRIVER_TABLE */
 
 /*
+ *  Default the number of drivers per node.  This value may be
+ *  overridden by the user.
+ */
+
+#ifndef CONFIGURE_MAXIMUM_DRIVERS
+#define CONFIGURE_MAXIMUM_DRIVERS   10
+#endif
+
+/*
  *  Default the number of devices per device driver.  This value may be
  *  overridden by the user.
  */
@@ -993,6 +1002,7 @@ rtems_configuration_table Configuration = {
   CONFIGURE_MICROSECONDS_PER_TICK,
   CONFIGURE_TICKS_PER_TIMESLICE,
   CONFIGURE_MAXIMUM_DEVICES,
+  CONFIGURE_MAXIMUM_DRIVERS,
   sizeof (Device_drivers)/
     sizeof(rtems_driver_address_table),      /* number of device drivers */
   Device_drivers,                            /* pointer to driver table */
diff --git a/cpukit/sapi/include/rtems/config.h b/cpukit/sapi/include/rtems/config.h
index bd8d972fc2..eba53a6818 100644
--- a/cpukit/sapi/include/rtems/config.h
+++ b/cpukit/sapi/include/rtems/config.h
@@ -104,6 +104,7 @@ typedef struct {
   unsigned32                        microseconds_per_tick;
   unsigned32                        ticks_per_timeslice;
   unsigned32                        maximum_devices;
+  unsigned32                        maximum_drivers;
   unsigned32                        number_of_device_drivers;
   rtems_driver_address_table       *Device_driver_table;
   unsigned32                        number_of_initial_extensions;
diff --git a/cpukit/sapi/include/rtems/io.h b/cpukit/sapi/include/rtems/io.h
index 4d8b3c027c..60d7ea2d53 100644
--- a/cpukit/sapi/include/rtems/io.h
+++ b/cpukit/sapi/include/rtems/io.h
@@ -100,11 +100,40 @@ SAPI_EXTERN rtems_driver_name_t        *_IO_Driver_name_table;
 
 void _IO_Manager_initialization(
   rtems_driver_address_table *driver_table,
+  unsigned32                  drivers_in_table,
   unsigned32                  number_of_drivers,
   unsigned32                  number_of_devices
 );
 
 /*
+ *  rtems_io_register_driver
+ *
+ *  DESCRIPTION:
+ *
+ *  Register a driver into the device driver table.
+ *
+ */
+
+rtems_status_code rtems_io_register_driver(
+    rtems_device_major_number   major,
+    rtems_driver_address_table *driver_table,
+    rtems_device_major_number  *registered_major
+);
+
+/*
+ *  rtems_io_unregister_driver
+ *
+ *  DESCRIPTION:
+ *
+ *  Unregister a driver from the device driver table.
+ *
+ */
+
+rtems_status_code rtems_io_unregister_driver(
+    rtems_device_major_number major
+);
+
+/*
  *  rtems_io_register_name
  *
  *  DESCRIPTION: