short rtl8192_tx(struct net_device *dev, struct sk_buff* skb);
u32 read_cam(struct net_device *dev, u8 addr);
void write_cam(struct net_device *dev, u8 addr, u32 data);
short rtl8192_tx(struct net_device *dev, struct sk_buff* skb);
u32 read_cam(struct net_device *dev, u8 addr);
void write_cam(struct net_device *dev, u8 addr, u32 data);