rtems: Generate <rtems/bspIo.h>

Change license to BSD-2-Clause according to file histories and
documentation re-licensing agreement.

Place the group into the I/O Manager group.  Add all source files to the
group.

Update #3899.
Update #3993.
Update #4482.

7 files changed, 28 insertions, 14 deletions

diff --git a/cpukit/libcsupport/src/getchark.c b/cpukit/libcsupport/src/getchark.c
index cfe9c022d6..2bb8bc64d2 100644
--- a/cpukit/libcsupport/src/getchark.c
+++ b/cpukit/libcsupport/src/getchark.c
@@ -1,7 +1,7 @@
 /**
  * @file
  *
- * @ingroup BSPIO
+ * @ingroup RTEMSAPIKernelCharIO
  *
  * @brief This source file contains the implementation of getchark().
  */
diff --git a/cpukit/libcsupport/src/printk.c b/cpukit/libcsupport/src/printk.c
index 444efab1f2..a93cd46cc1 100644
--- a/cpukit/libcsupport/src/printk.c
+++ b/cpukit/libcsupport/src/printk.c
@@ -1,8 +1,9 @@
 /**
- *  @file
+ * @file
  *
- *  @brief Kernel Printf Function
- *  @ingroup libcsupport
+ * @ingroup RTEMSAPIKernelCharIO
+ *
+ * @brief This source file contains the implementation of printk().
  */
 
 /*
diff --git a/cpukit/libcsupport/src/printk_plugin.c b/cpukit/libcsupport/src/printk_plugin.c
index 839a76e9c9..3ef3919732 100644
--- a/cpukit/libcsupport/src/printk_plugin.c
+++ b/cpukit/libcsupport/src/printk_plugin.c
@@ -1,8 +1,11 @@
 /**
- *  @file
+ * @file
  *
- *  @brief Plugin Printk
- *  @ingroup libcsupport
+ * @ingroup RTEMSAPIKernelCharIO
+ * @ingroup RTEMSPrintSupport
+ *
+ * @brief This source file contains the implementation of
+ *   rtems_printk_printer() and rtems_print_printer_printk().
  */
 
 /*
diff --git a/cpukit/libcsupport/src/putk.c b/cpukit/libcsupport/src/putk.c
index 87da29667d..4407405a22 100644
--- a/cpukit/libcsupport/src/putk.c
+++ b/cpukit/libcsupport/src/putk.c
@@ -1,8 +1,9 @@
 /**
- *  @file
+ * @file
  *
- *  @brief Write Character to Stream
- *  @ingroup libcsupport
+ * @ingroup RTEMSAPIKernelCharIO
+ *
+ * @brief This source file contains the implementation of putk().
  */
 
 /*
diff --git a/cpukit/libcsupport/src/rtems_put_char.c b/cpukit/libcsupport/src/rtems_put_char.c
index 53b368fd18..5836bcb9dc 100644
--- a/cpukit/libcsupport/src/rtems_put_char.c
+++ b/cpukit/libcsupport/src/rtems_put_char.c
@@ -1,5 +1,13 @@
 /* SPDX-License-Identifier: BSD-2-Clause */
 
+/**
+ * @file
+ *
+ * @ingroup RTEMSAPIKernelCharIO
+ *
+ * @brief This source file contains the implementation of rtems_put_char().
+ */
+
 /*
  * Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de)
  *
diff --git a/cpukit/libcsupport/src/rtems_putc.c b/cpukit/libcsupport/src/rtems_putc.c
index e27b1e4544..726893c2f1 100644
--- a/cpukit/libcsupport/src/rtems_putc.c
+++ b/cpukit/libcsupport/src/rtems_putc.c
@@ -3,7 +3,7 @@
 /**
  * @file
  *
- * @ingroup BSPIO
+ * @ingroup RTEMSAPIKernelCharIO
  *
  * @brief This source file contains the implementation of rtems_putc().
  */
diff --git a/cpukit/libcsupport/src/vprintk.c b/cpukit/libcsupport/src/vprintk.c
index 308872f71e..3131390372 100644
--- a/cpukit/libcsupport/src/vprintk.c
+++ b/cpukit/libcsupport/src/vprintk.c
@@ -1,8 +1,9 @@
 /**
- *  @file
+ * @file
  *
- *  @brief Print Formatted Output
- *  @ingroup libcsupport
+ * @ingroup RTEMSAPIKernelCharIO
+ *
+ * @brief This source file contains the implementation of vprintk().
  */
 
 /*