Following are simple steps to get everything started:

1) Build MySQL server. Please note libevent 1.4.12 is linked statically into daemon memcached.

2) Start MySQL server. (make sure libmemcached.so and innodb_engine.so are copied to MySQL plugin directory).

3) Create the configure table and a demo table by running innodb_memcached_config.sql

mysql < scripts/innodb_memcached_config.sql

4) Install the memcached daemon plugin:

mysql> install plugin daemon_memcached soname "libmemcached.so";

5) Test it out
telnet 127.0.0.1 11211

set a11 0 0 9
123456789
STORED
get a11
VALUE a11 0 9
123456789
END

6) Run memcapable
Memcapable is part of libmemcached package, it is available at "https://code.launchpad.net/~libmemcached-developers/libmemcached/trunk". If you did not install libevent by yourself, you might need to set LD_LIBRARY_PATH to point libevent.so in the libevent directory.

jy@jy-laptop:~/work2/mysql-5.6-labs-innodb-memcached/bld/mysql-test$ memcapable -v
ascii quit                              [pass]
ascii version                           [pass]
ascii verbosity                         [pass]
ascii set                               [pass]
ascii set noreply                       [pass]
ascii get                               [pass]
ascii gets                              [pass]
ascii mget                              [pass]
ascii flush                             [pass]
ascii flush noreply                     [pass]
ascii add                               [pass]
ascii add noreply                       [pass]
ascii replace                           [pass]
ascii replace noreply                   [pass]
ascii cas                               [pass]
ascii cas noreply                       [pass]
ascii delete                            [pass]
ascii delete noreply                    [pass]
ascii incr                              [pass]
ascii incr noreply                      [pass]
ascii decr                              [pass]
ascii decr noreply                      [pass]
ascii append                            [pass]
ascii append noreply                    [pass]
ascii prepend                           [pass]
ascii prepend noreply                   [pass]
ascii stat                              [pass]
binary noop                             [pass]
binary quit                             [pass]
binary quitq                            [pass]
binary set                              [pass]
binary setq                             [pass]
binary flush                            [pass]
binary flushq                           [pass]
binary add                              [pass]
binary addq                             [pass]
binary replace                          [pass]
binary replaceq                         [pass]
binary delete                           [pass]
binary deleteq                          [pass]
binary get                              [pass]
binary getq                             [pass]
binary getk                             [pass]
binary getkq                            [pass]
binary incr                             [pass]
binary incrq                            [pass]
binary decr                             [pass]
binary decrq                            [pass]
binary version                          [pass]
binary append                           [pass]
binary appendq                          [pass]
binary prepend                          [pass]
binary prependq                         [pass]
binary stat                             [pass]
All tests passed

7) memcached command line options now can be set by specifying MySQL configure variable "daemon_memcached-option"

8) You can also configure the commit batch size by specifying boot time system variable "daemon_memcached-w_batch_size" and "daemon_memcached-r_batch_size" (--loose-daemon_memcached-w_batch_size=100).

9) To enable binlog, please turn on server configure variable
"innodb_direct_access_enable_binlog" along with "log-bin" at server boot time:
msqld ... --log-bin --innodb_direct_access_enable_binlog=1