diff --git a/qse/include/qse/si/aio-sck.h b/qse/include/qse/si/aio-sck.h
index 496fb582..69ca6dcb 100644
--- a/qse/include/qse/si/aio-sck.h
+++ b/qse/include/qse/si/aio-sck.h
@@ -84,7 +84,6 @@ struct QSE_AIO_PACKED qse_aio_ip6addr_t
 };
 typedef struct qse_aio_ip6addr_t qse_aio_ip6addr_t;
 
-
 struct QSE_AIO_PACKED qse_aio_ethhdr_t
 {
 	qse_uint8_t  dest[QSE_AIO_ETHADDR_LEN];
diff --git a/qse/include/qse/si/aio.h b/qse/include/qse/si/aio.h
index 6afdb0a6..638c9c01 100644
--- a/qse/include/qse/si/aio.h
+++ b/qse/include/qse/si/aio.h
@@ -230,7 +230,7 @@ struct qse_aio_wq_t
 
 #define QSE_AIO_DEV_HEADERS \
 	qse_aio_t*          aio; \
-	qse_size_t      dev_size; \
+	qse_size_t          dev_size; \
 	int                 dev_capa; \
 	qse_aio_dev_mth_t*  dev_mth; \
 	qse_aio_dev_evcb_t* dev_evcb; \
@@ -295,9 +295,9 @@ extern "C" {
 #endif
 
 QSE_EXPORT qse_aio_t* qse_aio_open (
-	qse_mmgr_t*   mmgr,
-	qse_size_t    xtnsize,
-	qse_size_t    tmrcapa,  /**< initial timer capacity */
+	qse_mmgr_t*       mmgr,
+	qse_size_t        xtnsize,
+	qse_size_t        tmrcapa,  /**< initial timer capacity */
 	qse_aio_errnum_t* errnum
 );
 
@@ -330,10 +330,10 @@ QSE_EXPORT void qse_aio_stop (
 
 QSE_EXPORT qse_aio_dev_t* qse_aio_makedev (
 	qse_aio_t*          aio,
-	qse_size_t      dev_size,
+	qse_size_t          dev_size,
 	qse_aio_dev_mth_t*  dev_mth,
 	qse_aio_dev_evcb_t* dev_evcb,
-	void*            make_ctx
+	void*               make_ctx
 );
 
 QSE_EXPORT void qse_aio_killdev (
@@ -351,12 +351,12 @@ QSE_EXPORT int qse_aio_dev_watch (
 	qse_aio_dev_t*          dev,
 	qse_aio_dev_watch_cmd_t cmd,
 	/** 0 or bitwise-ORed of #QSE_AIO_DEV_EVENT_IN and #QSE_AIO_DEV_EVENT_OUT */
-	int                  events
+	int                     events
 );
 
 QSE_EXPORT int qse_aio_dev_read (
 	qse_aio_dev_t*         dev,
-	int                 enabled
+	int                    enabled
 );
 
 /**
@@ -379,10 +379,10 @@ QSE_EXPORT int qse_aio_dev_write (
 
 QSE_EXPORT int qse_aio_dev_timedwrite (
 	qse_aio_dev_t*           dev,
-	const void*           data,
+	const void*              data,
 	qse_aio_iolen_t          len,
-	const qse_ntime_t*   tmout,
-	void*                 wrctx,
+	const qse_ntime_t*       tmout,
+	void*                    wrctx,
 	const qse_aio_devaddr_t* dstaddr
 );
 
@@ -424,7 +424,7 @@ QSE_EXPORT qse_aio_tmrjob_t* qse_aio_gettmrjob (
 QSE_EXPORT int qse_aio_gettmrjobdeadline (
 	qse_aio_t*            aio,
 	qse_aio_tmridx_t      index,
-	qse_ntime_t*      deadline
+	qse_ntime_t*          deadline
 );
 
 /* ========================================================================= */
diff --git a/qse/lib/si/aio-sck.c b/qse/lib/si/aio-sck.c
index f17b745c..a4f2b983 100644
--- a/qse/lib/si/aio-sck.c
+++ b/qse/lib/si/aio-sck.c
@@ -87,7 +87,7 @@ void qse_aio_closeasyncsck (qse_aio_t* aio, qse_aio_sckhnd_t sck)
 
 int qse_aio_makesckasync (qse_aio_t* aio, qse_aio_sckhnd_t sck)
 {
-	return qse_aio_makesyshndasync (aio, (qse_aio_syshnd_t)sck);
+	return qse_aio_makesyshndasync(aio, (qse_aio_syshnd_t)sck);
 }
 
 qse_aio_sckhnd_t qse_aio_openasyncsck (qse_aio_t* aio, int domain, int type, int proto)
@@ -451,7 +451,7 @@ static int dev_sck_make_client (qse_aio_dev_t* dev, void* ctx)
 	qse_aio_dev_sck_t* rdev = (qse_aio_dev_sck_t*)dev;
 	qse_aio_syshnd_t* sck = (qse_aio_syshnd_t*)ctx;
 
-	/* nothing special is done here except setting the sock et handle.
+	/* nothing special is done here except setting the socket handle.
 	 * most of the initialization is done by the listening socket device
 	 * after a client socket has been created. */
 
@@ -1399,7 +1399,7 @@ static int dev_evcb_sck_ready_stateful (qse_aio_dev_t* dev, int events)
 		qse_aio_scklen_t len;
 
 		len = QSE_SIZEOF(errcode);
-		if (getsockopt (rdev->sck, SOL_SOCKET, SO_ERROR, (char*)&errcode, &len) == -1)
+		if (getsockopt(rdev->sck, SOL_SOCKET, SO_ERROR, (char*)&errcode, &len) == -1)
 		{
 			/* the error number is set to the socket error code.
 			 * errno resulting from getsockopt() doesn't reflect the actual
diff --git a/qse/samples/si/aio01.c b/qse/samples/si/aio01.c
index ce382e5a..0894c0bb 100644
--- a/qse/samples/si/aio01.c
+++ b/qse/samples/si/aio01.c
@@ -520,7 +520,7 @@ int main ()
 	SSL_library_init ();
 #endif
 
-	aio = qse_aio_open (QSE_MMGR_GETDFL(), 0, 512, QSE_NULL);
+	aio = qse_aio_open(QSE_MMGR_GETDFL(), 0, 512, QSE_NULL);
 	if (!aio)
 	{
 		printf ("Cannot open aio\n");
@@ -561,7 +561,7 @@ int main ()
 	tcp_make.on_write = tcp_sck_on_write;
 	tcp_make.on_read = tcp_sck_on_read;
 	tcp_make.on_disconnect = tcp_sck_on_disconnect;
-	tcp[0] = qse_aio_dev_sck_make (aio, QSE_SIZEOF(tcp_server_t), &tcp_make);
+	tcp[0] = qse_aio_dev_sck_make(aio, QSE_SIZEOF(tcp_server_t), &tcp_make);
 	if (!tcp[0])
 	{
 		printf ("Cannot make tcp\n");
@@ -581,7 +581,7 @@ int main ()
 	qse_inittime (&tcp_conn.connect_tmout, 5, 0);
 	tcp_conn.on_connect = tcp_sck_on_connect;
 	tcp_conn.options = QSE_AIO_DEV_SCK_CONNECT_SSL;
-	if (qse_aio_dev_sck_connect (tcp[0], &tcp_conn) <= -1)
+	if (qse_aio_dev_sck_connect(tcp[0], &tcp_conn) <= -1)
 	{
 		printf ("qse_aio_dev_sck_connect() failed....\n");
 		/* carry on regardless of failure */
@@ -594,7 +594,7 @@ int main ()
 	tcp_make.on_read = tcp_sck_on_read;
 	tcp_make.on_disconnect = tcp_sck_on_disconnect;
 
-	tcp[1] = qse_aio_dev_sck_make (aio, QSE_SIZEOF(tcp_server_t), &tcp_make);
+	tcp[1] = qse_aio_dev_sck_make(aio, QSE_SIZEOF(tcp_server_t), &tcp_make);
 	if (!tcp[1])
 	{
 		printf ("Cannot make tcp\n");