diff --git a/hal/hal_hci/hal_usb.c b/hal/hal_hci/hal_usb.c
index 7961a82..196e204 100644
--- a/hal/hal_hci/hal_usb.c
+++ b/hal/hal_hci/hal_usb.c
@@ -319,18 +319,9 @@ int usb_async_write32(struct intf_hdl *pintfhdl, u32 addr, u32 val)
 
 u8 usb_read8(struct intf_hdl *pintfhdl, u32 addr)
 {
-	u8 requesttype;
-	u16 wvalue;
-	u16 index;
-	u16 len;
+	u16 wvalue = (u16)(addr & 0x0000ffff);
 	u8 data = 0;
 
-
-	requesttype = 0x01;/* read_in */
-	index = 0;/* n/a */
-
-	wvalue = (u16)(addr & 0x0000ffff);
-	len = 1;
 	
 /* WLANON PAGE0_REG needs to add an offset 0x8000 */
 #if defined(CONFIG_RTL8710B)
@@ -338,7 +329,7 @@ u8 usb_read8(struct intf_hdl *pintfhdl, u32 addr)
 		wvalue |= 0x8000;
 #endif
 
-	usbctrl_vendorreq(pintfhdl, wvalue, index, &data, len, requesttype);
+	usbctrl_vendorreq(pintfhdl, wvalue, 0, &data, 1, VENDOR_READ);
 
 
 	return data;
@@ -346,26 +337,16 @@ u8 usb_read8(struct intf_hdl *pintfhdl, u32 addr)
 
 u16 usb_read16(struct intf_hdl *pintfhdl, u32 addr)
 {
-	u8 requesttype;
-	u16 wvalue;
-	u16 index;
-	u16 len;
-	u16 data = 0;
+	u16 wvalue = (u16)(addr & 0x0000ffff);
+	u16 data;
 
-
-	requesttype = 0x01;/* read_in */
-	index = 0;/* n/a */
-
-	wvalue = (u16)(addr & 0x0000ffff);
-	len = 2;
-	
 /* WLANON PAGE0_REG needs to add an offset 0x8000 */
 #if defined(CONFIG_RTL8710B)
 	if(wvalue >= 0x0000 && wvalue < 0x0100)
 		wvalue |= 0x8000;
 #endif
 
-	usbctrl_vendorreq(pintfhdl, wvalue, index, &data, len, requesttype);
+	usbctrl_vendorreq(pintfhdl, wvalue, 0, &data, 2, VENDOR_READ);
 
 
 	return data;
@@ -374,18 +355,8 @@ u16 usb_read16(struct intf_hdl *pintfhdl, u32 addr)
 
 u32 usb_read32(struct intf_hdl *pintfhdl, u32 addr)
 {
-	u8 requesttype;
-	u16 wvalue;
-	u16 index;
-	u16 len;
-	u32 data = 0;
-
-
-	requesttype = 0x01;/* read_in */
-	index = 0;/* n/a */
-
-	wvalue = (u16)(addr & 0x0000ffff);
-	len = 4;
+	u16 wvalue = (u16)(addr & 0x0000ffff);
+	u32 data;
 	
 /* WLANON PAGE0_REG needs to add an offset 0x8000 */
 #if defined(CONFIG_RTL8710B)
@@ -393,7 +364,7 @@ u32 usb_read32(struct intf_hdl *pintfhdl, u32 addr)
 		wvalue |= 0x8000;
 #endif
 
-	usbctrl_vendorreq(pintfhdl, wvalue, index, &data, len, requesttype);
+	usbctrl_vendorreq(pintfhdl, wvalue, 0, &data, 4, VENDOR_READ);
 
 
 	return data;