diff --git a/bsp/usb.c b/bsp/usb.c
index 7f69048..226d861 100644
--- a/bsp/usb.c
+++ b/bsp/usb.c
@@ -310,6 +310,14 @@ void Fx3UsbUnstallEp0(void)
   Fx3SetReg32(FX3_PROT_CS, FX3_PROT_CS_SETUP_CLR_BUSY);
 }
 
+void Fx3UsbHSUnstallEp0(void)
+{
+  Fx3ClearReg32(FX3_DEV_EPI_CS+0,FX3_DEV_EPI_CS_STALL);
+  Fx3ClearReg32(FX3_DEV_EPO_CS+0,FX3_DEV_EPO_CS_STALL);
+  Fx3UtilDelayUs(1);
+  Fx3SetReg32(FX3_DEV_CS, FX3_DEV_CS_SETUP_CLR_BUSY);
+}
+
 void Fx3UsbDmaDataOut(uint8_t ep, volatile void *buffer, uint16_t length)
 {
   uint16_t d = Fx3DmaAllocateDescriptor();
diff --git a/bsp/usb.h b/bsp/usb.h
index 7ac3b9a..3d6cfa5 100644
--- a/bsp/usb.h
+++ b/bsp/usb.h
@@ -84,6 +84,7 @@ extern void Fx3UsbInit(const struct Fx3UsbCallbacks *callbacks);
 extern void Fx3UsbConnect(void);
 extern void Fx3UsbStallEp0(void);
 extern void Fx3UsbUnstallEp0(void);
+void Fx3UsbHSUnstallEp0(void);
 extern void Fx3UsbDmaDataOut(uint8_t ep, volatile void *buffer,
 			     uint16_t length);
 extern void Fx3UsbDmaDataIn(uint8_t ep, const volatile void *buffer,
diff --git a/descriptors.c b/descriptors.c
index bee605c..658117a 100644
--- a/descriptors.c
+++ b/descriptors.c
@@ -1,10 +1,33 @@
 #include <stdint.h>
 #include <stddef.h>
-
+#include <bsp/uart.h>
 #include <bsp/usb.h>
 
 #include "descriptors.h"
 
+static const struct __attribute__((packed)) {
+  uint8_t length, descriptor_type;
+  uint16_t usb_version;
+  uint8_t device_class, sub_class, protocol, max_packet_size;
+  uint16_t vendor, product, dev_version;
+  uint8_t manuf_index, product_index, serial_index, num_configurations;
+} highspeed_device_descriptor = {
+  .length = sizeof(highspeed_device_descriptor),
+  .descriptor_type = FX3_USB_DESCRIPTOR_DEVICE,
+  .usb_version = 0x0200,
+  .device_class = 0xff,
+  .sub_class = 0xff,
+  .protocol = 0xff,
+  .max_packet_size = 64 /* 2^9 */,
+  .vendor = 0x04b4,
+  .product = 0x00f3,
+  .dev_version = 0x0001,
+  .manuf_index = 1,
+  .product_index = 2,
+  .serial_index = 3,
+  .num_configurations = 1
+};
+
 static const struct __attribute__((packed)) {
   uint8_t length, descriptor_type;
   uint16_t usb_version;
@@ -168,7 +191,13 @@ const void *GetDescriptor(uint8_t descriptor_type, uint8_t descriptor_no)
 
 const void *GetDescriptorHS(uint8_t descriptor_type, uint8_t descriptor_no)
 {
-   (void)(descriptor_type);
-   (void)(descriptor_no);
+  switch(descriptor_type) {
+  case FX3_USB_DESCRIPTOR_DEVICE:
+    if (descriptor_no == 0)
+        //Fx3UartTxString("\nim here!\n");
+      return &highspeed_device_descriptor;
+    break;
+   }
+   //(void)(descriptor_no);
    return NULL;
 }
\ No newline at end of file
diff --git a/main.c b/main.c
index addd8c7..7c8c9fe 100644
--- a/main.c
+++ b/main.c
@@ -171,7 +171,7 @@ static void SetupDataHS(uint8_t request_type, uint8_t request, uint16_t value,
         *(const uint16_t *)(descr+2) : *descr);
     if (len < length)
       length = len;
-    Fx3UsbUnstallEp0();
+    Fx3UsbHSUnstallEp0();
     Fx3UsbDmaDataIn(0, descr, length);
     return;