diff --git a/drivers/staging/ks7010/ks7010_sdio.h b/drivers/staging/ks7010/ks7010_sdio.h
index 5aa593af82dd..d04fccc606b6 100644
--- a/drivers/staging/ks7010/ks7010_sdio.h
+++ b/drivers/staging/ks7010/ks7010_sdio.h
@@ -76,8 +76,6 @@ enum gen_com_reg_b {
 };
 
 /* Wakeup Register */
-/* #define WAKEUP			0x008104 */
-/* #define WAKEUP_REQ		0x00 */
 #define WAKEUP			0x008018
 #define WAKEUP_REQ		0x5a
 
@@ -87,9 +85,6 @@ enum gen_com_reg_b {
 
 #define KS7010_IRAM_ADDRESS	0x06000000
 
-/*
- * struct define
- */
 struct hw_info_t {
 	struct ks_sdio_card *sdio_card;
 	struct workqueue_struct *ks7010sdio_wq;
@@ -105,35 +100,62 @@ struct ks_sdio_card {
 /* Tx Device struct */
 #define	TX_DEVICE_BUFF_SIZE	1024
 
+/**
+ * struct tx_device_buffer - Queue item for the tx queue.
+ * @sendp: Pointer to the send request data.
+ * @size: Size of @sendp data.
+ * @complete_handler: Function called once data write to device is complete.
+ * @arg1: First argument to @complete_handler.
+ * @arg2: Second argument to @complete_handler.
+ */
 struct tx_device_buffer {
-	unsigned char *sendp;	/* pointer of send req data */
+	unsigned char *sendp;
 	unsigned int size;
 	void (*complete_handler)(struct ks_wlan_private *priv,
 				 struct sk_buff *skb);
 	struct sk_buff *skb;
 };
 
+/**
+ * struct tx_device - Tx buffer queue.
+ * @tx_device_buffer: Queue buffer.
+ * @qhead: Head of tx queue.
+ * @qtail: Tail of tx queue.
+ * @tx_dev_lock: Queue lock.
+ */
 struct tx_device {
 	struct tx_device_buffer tx_dev_buff[TX_DEVICE_BUFF_SIZE];
-	unsigned int qhead;	/* tx buffer queue first pointer */
-	unsigned int qtail;	/* tx buffer queue last pointer */
-	spinlock_t tx_dev_lock;
+	unsigned int qhead;
+	unsigned int qtail;
+	spinlock_t tx_dev_lock;	/* protect access to the queue */
 };
 
 /* Rx Device struct */
 #define	RX_DATA_SIZE	(2 + 2 + 2347 + 1)
 #define	RX_DEVICE_BUFF_SIZE	32
 
+/**
+ * struct rx_device_buffer - Queue item for the rx queue.
+ * @data: rx data.
+ * @size: Size of @data.
+ */
 struct rx_device_buffer {
 	unsigned char data[RX_DATA_SIZE];
 	unsigned int size;
 };
 
+/**
+ * struct rx_device - Rx buffer queue.
+ * @rx_device_buffer: Queue buffer.
+ * @qhead: Head of rx queue.
+ * @qtail: Tail of rx queue.
+ * @rx_dev_lock: Queue lock.
+ */
 struct rx_device {
 	struct rx_device_buffer rx_dev_buff[RX_DEVICE_BUFF_SIZE];
-	unsigned int qhead;	/* rx buffer queue first pointer */
-	unsigned int qtail;	/* rx buffer queue last pointer */
-	spinlock_t rx_dev_lock;
+	unsigned int qhead;
+	unsigned int qtail;
+	spinlock_t rx_dev_lock;	/* protect access to the queue */
 };
 
 #define	ROM_FILE "ks7010sd.rom"