diff --git a/adb/usb_linux_client.cpp b/adb/usb_linux_client.cpp
index 817917e..3495a71 100644
--- a/adb/usb_linux_client.cpp
+++ b/adb/usb_linux_client.cpp
@@ -88,8 +88,11 @@
     __le32 fs_count;
     __le32 hs_count;
     __le32 ss_count;
+    __le32 os_count;
     struct func_desc fs_descs, hs_descs;
     struct ss_func_desc ss_descs;
+    struct usb_os_desc_header os_header;
+    struct usb_ext_compat_desc os_desc;
 } __attribute__((packed));
 
 static struct func_desc fs_descriptors = {
@@ -181,6 +184,24 @@
     },
 };
 
+struct usb_ext_compat_desc os_desc_compat = {
+    .bFirstInterfaceNumber = 0,
+    .Reserved1 = cpu_to_le32(1),
+    .CompatibleID = {0},
+    .SubCompatibleID = {0},
+    .Reserved2 = {0},
+};
+
+static struct usb_os_desc_header os_desc_header = {
+    .interface = cpu_to_le32(1),
+    .dwLength = cpu_to_le32(sizeof(os_desc_header) + sizeof(os_desc_compat)),
+    .bcdVersion = cpu_to_le32(1),
+    .wIndex = cpu_to_le32(4),
+    .bCount = cpu_to_le32(1),
+    .Reserved = cpu_to_le32(0),
+};
+
+
 #define STR_INTERFACE_ "ADB Interface"
 
 static const struct {
@@ -332,13 +353,16 @@
     v2_descriptor.header.magic = cpu_to_le32(FUNCTIONFS_DESCRIPTORS_MAGIC_V2);
     v2_descriptor.header.length = cpu_to_le32(sizeof(v2_descriptor));
     v2_descriptor.header.flags = FUNCTIONFS_HAS_FS_DESC | FUNCTIONFS_HAS_HS_DESC |
-                                 FUNCTIONFS_HAS_SS_DESC;
+                                 FUNCTIONFS_HAS_SS_DESC | FUNCTIONFS_HAS_MS_OS_DESC;
     v2_descriptor.fs_count = 3;
     v2_descriptor.hs_count = 3;
     v2_descriptor.ss_count = 5;
+    v2_descriptor.os_count = 1;
     v2_descriptor.fs_descs = fs_descriptors;
     v2_descriptor.hs_descs = hs_descriptors;
     v2_descriptor.ss_descs = ss_descriptors;
+    v2_descriptor.os_header = os_desc_header;
+    v2_descriptor.os_desc = os_desc_compat;
 
     if (h->control < 0) { // might have already done this before
         D("OPENING %s", USB_FFS_ADB_EP0);
diff --git a/libcutils/tests/MemsetTest.cpp b/libcutils/tests/MemsetTest.cpp
index 45efc51..a98485f 100644
--- a/libcutils/tests/MemsetTest.cpp
+++ b/libcutils/tests/MemsetTest.cpp
@@ -20,6 +20,8 @@
 #include <sys/mman.h>
 #include <sys/types.h>
 
+#include <memory>
+
 #include <cutils/memory.h>
 #include <gtest/gtest.h>
 
@@ -127,14 +129,14 @@
     min_incr = 2;
     value |= value << 16;
   }
-  uint32_t* expected_buf = new uint32_t[MAX_TEST_SIZE/sizeof(uint32_t)];
+  std::unique_ptr<uint32_t[]> expected_buf(new uint32_t[MAX_TEST_SIZE/sizeof(uint32_t)]);
   for (size_t i = 0; i < MAX_TEST_SIZE/sizeof(uint32_t); i++) {
     expected_buf[i] = value;
   }
 
   // Allocate one large buffer with lots of extra space so that we can
   // guarantee that all possible alignments will fit.
-  uint8_t *buf = new uint8_t[3*MAX_TEST_SIZE];
+  std::unique_ptr<uint8_t[]> buf(new uint8_t[3*MAX_TEST_SIZE]);
   uint8_t *buf_align;
   for (size_t i = 0; i < num_aligns; i++) {
     size_t incr = min_incr;
@@ -142,7 +144,7 @@
       incr = GetIncrement(len, min_incr);
 
       buf_align = reinterpret_cast<uint8_t*>(GetAlignedPtr(
-          buf+FENCEPOST_LENGTH, align[i][0], align[i][1]));
+          buf.get()+FENCEPOST_LENGTH, align[i][0], align[i][1]));
 
       SetFencepost(&buf_align[-FENCEPOST_LENGTH]);
       SetFencepost(&buf_align[len]);
@@ -153,15 +155,13 @@
       } else {
         android_memset32(reinterpret_cast<uint32_t*>(buf_align), value, len);
       }
-      ASSERT_EQ(0, memcmp(expected_buf, buf_align, len))
+      ASSERT_EQ(0, memcmp(expected_buf.get(), buf_align, len))
           << "Failed size " << len << " align " << align[i][0] << " " << align[i][1] << "\n";
 
       VerifyFencepost(&buf_align[-FENCEPOST_LENGTH]);
       VerifyFencepost(&buf_align[len]);
     }
   }
-  delete expected_buf;
-  delete buf;
 }
 
 TEST(libcutils, android_memset16_non_zero) {