diff --git a/src/userland/usb/main.c b/src/userland/usb/main.c
index 7633554..99f196d 100644
--- a/src/userland/usb/main.c
+++ b/src/userland/usb/main.c
@@ -99,9 +99,25 @@
     }
     operational->deviceNotificationControl = 2;
     operational->configure |= 16;
-    DeviceContext *context = malloc(sizeof(DeviceContext));
+    DeviceContextArray *deviceContextArray = malloc(sizeof(DeviceContextArray));
     operational->deviceContextArray =
-        (uint64_t)U32(getPhysicalAddress(context));
+        (uint64_t)U32(getPhysicalAddress(deviceContextArray));
+    uint32_t maxScratchpatchBufferCount =
+        ((capabilities->capabilityParameters2 >> 27) & 0x1F) |
+        ((capabilities->capabilityParameters2 >> 16) & 0xE0);
+    if (maxScratchpatchBufferCount) {
+        printf("creatng scratchpad buffers\n");
+        uint64_t *scratchpadBuffers =
+            malloc(sizeof(uint64_t) * maxScratchpatchBufferCount);
+        for (uint32_t i = 0; i < maxScratchpatchBufferCount; i++) {
+            scratchpadBuffers[i] = U32(getPhysicalAddress(malloc(4096)));
+        }
+        deviceContextArray->scratchpadBufferBase =
+            U32(getPhysicalAddress(scratchpadBuffers));
+    } else {
+        printf("no scratchpad buffers implemented\n");
+        deviceContextArray->scratchpadBufferBase = 0;
+    }
 
     XHCIPortRegister *ports = OFFSET(operational, 0x400);
     for (uint32_t i = 0; i < 16; i++) {

diff --git a/src/userland/usb/main.c b/src/userland/usb/main.c
index 7633554..99f196d 100644
--- a/src/userland/usb/main.c
+++ b/src/userland/usb/main.c
@@ -99,9 +99,25 @@
     }
     operational->deviceNotificationControl = 2;
     operational->configure |= 16;
-    DeviceContext *context = malloc(sizeof(DeviceContext));
+    DeviceContextArray *deviceContextArray = malloc(sizeof(DeviceContextArray));
     operational->deviceContextArray =
-        (uint64_t)U32(getPhysicalAddress(context));
+        (uint64_t)U32(getPhysicalAddress(deviceContextArray));
+    uint32_t maxScratchpatchBufferCount =
+        ((capabilities->capabilityParameters2 >> 27) & 0x1F) |
+        ((capabilities->capabilityParameters2 >> 16) & 0xE0);
+    if (maxScratchpatchBufferCount) {
+        printf("creatng scratchpad buffers\n");
+        uint64_t *scratchpadBuffers =
+            malloc(sizeof(uint64_t) * maxScratchpatchBufferCount);
+        for (uint32_t i = 0; i < maxScratchpatchBufferCount; i++) {
+            scratchpadBuffers[i] = U32(getPhysicalAddress(malloc(4096)));
+        }
+        deviceContextArray->scratchpadBufferBase =
+            U32(getPhysicalAddress(scratchpadBuffers));
+    } else {
+        printf("no scratchpad buffers implemented\n");
+        deviceContextArray->scratchpadBufferBase = 0;
+    }
 
     XHCIPortRegister *ports = OFFSET(operational, 0x400);
     for (uint32_t i = 0; i < 16; i++) {
diff --git a/src/userland/usb/usb.h b/src/userland/usb/usb.h
index 3dcea62..f7c6a3b 100644
--- a/src/userland/usb/usb.h
+++ b/src/userland/usb/usb.h
@@ -83,6 +83,11 @@
 } DeviceContext;
 
 typedef struct {
+    uint64_t scratchpadBufferBase;
+    uint64_t deviceContextPointer[16];
+} DeviceContextArray;
+
+typedef struct {
     uint32_t statusControl, powerManagement, linkInfo, reserved;
 } XHCIPortRegister;