X-Git-Url: https://gerrit.automotivelinux.org/gerrit/gitweb?a=blobdiff_plain;ds=sidebyside;f=docs%2Freference.rst;h=e59a0c941fdaab2f0844a2f1af7dc05fe9c590a2;hb=07375a126337916f3a34ea94f8085b8f89d789a1;hp=372450bec7b34fc21b793565836d6ddff404daec;hpb=420265d39bab7f1de051e108f7123b8c3b844f89;p=apps%2Fagl-service-can-low-level.git

diff --git a/docs/reference.rst b/docs/reference.rst
index 372450be..e59a0c94 100644
--- a/docs/reference.rst
+++ b/docs/reference.rst
@@ -77,9 +77,10 @@ int_size                       Override the integer type of a field.
 type                           Type of the generated field. Default value
                                is *FT_DEFAULT*, which selects automatically.
                                You can use *FT_CALLBACK*, *FT_POINTER*,
-                               *FT_STATIC* or *FT_IGNORE* to force a callback
-                               field, a dynamically allocated field, a static
-                               field or to completely ignore the field.
+                               *FT_STATIC* or *FT_IGNORE* to
+                               force a callback field, a dynamically
+                               allocated field, a static field or to
+                               completely ignore the field.
 long_names                     Prefix the enum name to the enum value in
                                definitions, i.e. *EnumName_EnumValue*. Enabled
                                by default.
@@ -91,6 +92,8 @@ no_unions                      Generate 'oneof' fields as optional fields
                                instead of C unions.
 msgid                          Specifies a unique id for this message type.
                                Can be used by user code as an identifier.
+anonymous_oneof                Generate 'oneof' fields as anonymous unions.
+fixed_length                   Generate 'bytes' fields with constant length.
 ============================  ================================================
 
 These options can be defined for the .proto files before they are converted
@@ -198,25 +201,37 @@ The options can be defined in file, message and field scopes::
 pb.h
 ====
 
+pb_byte_t
+---------
+Type used for storing byte-sized data, such as raw binary input and bytes-type fields. ::
+
+    typedef uint_least8_t pb_byte_t;
+
+For most platforms this is equivalent to `uint8_t`. Some platforms however do not support
+8-bit variables, and on those platforms 16 or 32 bits need to be used for each byte.
+
 pb_type_t
 ---------
-Defines the encoder/decoder behaviour that should be used for a field. ::
+Type used to store the type of each field, to control the encoder/decoder behaviour. ::
 
     typedef uint_least8_t pb_type_t;
 
 The low-order nibble of the enumeration values defines the function that can be used for encoding and decoding the field data:
 
-==================== ===== ================================================
-LTYPE identifier     Value Storage format
-==================== ===== ================================================
-PB_LTYPE_VARINT      0x00  Integer.
-PB_LTYPE_SVARINT     0x01  Integer, zigzag encoded.
-PB_LTYPE_FIXED32     0x02  32-bit integer or floating point.
-PB_LTYPE_FIXED64     0x03  64-bit integer or floating point.
-PB_LTYPE_BYTES       0x04  Structure with *size_t* field and byte array.
-PB_LTYPE_STRING      0x05  Null-terminated string.
-PB_LTYPE_SUBMESSAGE  0x06  Submessage structure.
-==================== ===== ================================================
+=========================== ===== ================================================
+LTYPE identifier            Value Storage format
+=========================== ===== ================================================
+PB_LTYPE_VARINT             0x00  Integer.
+PB_LTYPE_UVARINT            0x01  Unsigned integer.
+PB_LTYPE_SVARINT            0x02  Integer, zigzag encoded.
+PB_LTYPE_FIXED32            0x03  32-bit integer or floating point.
+PB_LTYPE_FIXED64            0x04  64-bit integer or floating point.
+PB_LTYPE_BYTES              0x05  Structure with *size_t* field and byte array.
+PB_LTYPE_STRING             0x06  Null-terminated string.
+PB_LTYPE_SUBMESSAGE         0x07  Submessage structure.
+PB_LTYPE_EXTENSION          0x08  Point to *pb_extension_t*.
+PB_LTYPE_FIXED_LENGTH_BYTES 0x09  Inline *pb_byte_t* array of fixed size.
+=========================== ===== ================================================
 
 The bits 4-5 define whether the field is required, optional or repeated:
 
@@ -479,14 +494,14 @@ This function only considers the LTYPE of the field. You can use it from your fi
 
 Wire type mapping is as follows:
 
-========================= ============
-LTYPEs                    Wire type
-========================= ============
-VARINT, SVARINT           PB_WT_VARINT
-FIXED64                   PB_WT_64BIT  
-STRING, BYTES, SUBMESSAGE PB_WT_STRING 
-FIXED32                   PB_WT_32BIT
-========================= ============
+============================================= ============
+LTYPEs                                        Wire type
+============================================= ============
+VARINT, UVARINT, SVARINT                      PB_WT_VARINT
+FIXED64                                       PB_WT_64BIT
+STRING, BYTES, SUBMESSAGE, FIXED_LENGTH_BYTES PB_WT_STRING
+FIXED32                                       PB_WT_32BIT
+============================================= ============
 
 pb_encode_varint
 ----------------
@@ -641,7 +656,7 @@ This function is compatible with *writeDelimitedTo* in the Google's Protocol Buf
 
 pb_release
 ----------
-Releases any dynamically allocated fields.
+Releases any dynamically allocated fields::
 
     void pb_release(const pb_field_t fields[], void *dest_struct);