commit 64000788211f4c7e78c80a4a155390d1316e1176
author Mike Lockwood <lockwood@android.com> Sun Apr 24 18:40:17 2011 -0700
committer Mike Lockwood <lockwood@android.com> Mon Apr 25 17:40:33 2011 -0700
tree 5cd67cc35f9df8ffcef27438430c6a087adfa69c
parent c0502468a29aa2f2b3457e0e08c4a5650a70488d

MTP: Implement GetThumb command

This allows the PC to access thumbnails in JPEG files over MTP/PTP

Bug: 3219495

Change-Id: I4964f8b4826dffb7f0f77464ec91bd2e97a2f007
Signed-off-by: Mike Lockwood <lockwood@android.com>

media/mtp/MtpDataPacket.cpp

diff --git a/media/mtp/MtpDataPacket.cpp b/media/mtp/MtpDataPacket.cpp
index 0b0c80d..817eac0 100644
--- a/media/mtp/MtpDataPacket.cpp
+++ b/media/mtp/MtpDataPacket.cpp
@@ -388,6 +388,16 @@
     int ret = ::write(fd, mBuffer, MTP_CONTAINER_HEADER_SIZE);
     return (ret < 0 ? ret : 0);
 }
+
+int MtpDataPacket::writeData(int fd, void* data, uint32_t length) {
+    MtpPacket::putUInt32(MTP_CONTAINER_LENGTH_OFFSET, length + MTP_CONTAINER_HEADER_SIZE);
+    MtpPacket::putUInt16(MTP_CONTAINER_TYPE_OFFSET, MTP_CONTAINER_TYPE_DATA);
+    int ret = ::write(fd, mBuffer, MTP_CONTAINER_HEADER_SIZE);
+    if (ret == MTP_CONTAINER_HEADER_SIZE)
+        ret = ::write(fd, data, length);
+    return (ret < 0 ? ret : 0);
+}
+
 #endif // MTP_DEVICE
 
 #ifdef MTP_HOST