_io_ops
int rtw_init_io_priv(struct adapter *padapter, void (*set_intf_ops)(struct adapter *padapter, struct _io_ops *pops))
void sdio_set_intf_ops(struct adapter *adapter, struct _io_ops *ops)
struct _io_ops io_ops;
int rtw_init_io_priv(struct adapter *padapter, void (*set_intf_ops)(struct adapter *padapter, struct _io_ops *pops));
extern void sdio_set_intf_ops(struct adapter *padapter, struct _io_ops *pops);