doc: posix: mark posix device io as complete

Mark the POSIX_DEVICE_IO Option Group as commplete. This Option
Group is required for PSE51, PSE52, PSE53, PSE54, and most of
the interesting applications involving file descriptors and
sockets.

Signed-off-by: Chris Friedt <cfriedt@tenstorrent.com>

doc/services/portability/posix/aep/index.rst

@@ -50,7 +50,7 @@ The *Minimal Realtime System Profile* (PSE51) includes all of the
 
     :ref:`POSIX_C_LANG_JUMP <posix_option_group_c_lang_jump>`, yes,
     :ref:`POSIX_C_LANG_SUPPORT <posix_option_group_c_lang_support>`, yes,
-    :ref:`POSIX_DEVICE_IO <posix_option_group_device_io>`,, :kconfig:option:`CONFIG_POSIX_DEVICE_IO`
+    :ref:`POSIX_DEVICE_IO <posix_option_group_device_io>`, yes, :kconfig:option:`CONFIG_POSIX_DEVICE_IO`
     :ref:`POSIX_SIGNALS <posix_option_group_signals>`,, :kconfig:option:`CONFIG_POSIX_SIGNALS`
     :ref:`POSIX_SINGLE_PROCESS <posix_option_group_single_process>`, yes, :kconfig:option:`CONFIG_POSIX_SINGLE_PROCESS`
     :ref:`XSI_THREADS_EXT <posix_option_group_xsi_threads_ext>`, yes, :kconfig:option:`CONFIG_XSI_THREADS_EXT`

doc/services/portability/posix/option_groups/index.rst

@@ -271,6 +271,10 @@ required for error and event handling.
 POSIX_DEVICE_IO
 ===============
 
+.. note::
+   When using Newlib, Picolibc, or other C libraries conforming to the ISO C Standard, the
+   C89 components of the ``POSIX_DEVICE_IO`` Option Group are considered supported.
+
 .. csv-table:: POSIX_DEVICE_IO
    :header: API, Supported
    :widths: 50,10
@@ -281,48 +285,48 @@ POSIX_DEVICE_IO
     FD_ZERO(),yes
     clearerr(),yes
     close(),yes
-    fclose(),
-    fdopen(),
-    feof(),
-    ferror(),
-    fflush(),
-    fgetc(),
-    fgets(),
-    fileno(),
-    fopen(),
+    fclose(),yes
+    fdopen(), yes
+    feof(),yes
+    ferror(),yes
+    fflush(),yes
+    fgetc(),yes
+    fgets(),yes
+    fileno(), yes
+    fopen(),yes
     fprintf(),yes
     fputc(),yes
     fputs(),yes
-    fread(),
-    freopen(),
-    fscanf(),
+    fread(),yes
+    freopen(),yes
+    fscanf(),yes
     fwrite(),yes
-    getc(),
-    getchar(),
-    gets(),
+    getc(),yes
+    getchar(),yes
+    gets(),yes
     open(),yes
     perror(),yes
     poll(),yes
     printf(),yes
-    pread(),
-    pselect(),
+    pread(),yes
+    pselect(),yes
     putc(),yes
     putchar(),yes
     puts(),yes
-    pwrite(),
+    pwrite(),yes
     read(),yes
-    scanf(),
+    scanf(),yes
     select(),yes
-    setbuf(),
-    setvbuf(),
-    stderr,
-    stdin,
-    stdout,
-    ungetc(),
+    setbuf(),yes
+    setvbuf(),yes
+    stderr,yes
+    stdin,yes
+    stdout,yes
+    ungetc(),yes
     vfprintf(),yes
-    vfscanf(),
+    vfscanf(),yes
     vprintf(),yes
-    vscanf(),
+    vscanf(),yes
     write(),yes
 
 .. _posix_option_group_barriers: