From daec8a4dfbed5387f3273d12c26194dcf5a5a4e3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?L=C3=A1zaro=20Vieira?= <lazaro-e-nemo@hotmail.com>
Date: Sun, 4 Sep 2016 13:07:24 -0300
Subject: [PATCH] Add AM_DeleteAllDemoLaunchInfos

---
 libctru/include/3ds/services/am.h |  3 +++
 libctru/source/services/am.c      | 12 ++++++++++++
 2 files changed, 15 insertions(+)

diff --git a/libctru/include/3ds/services/am.h b/libctru/include/3ds/services/am.h
index d02650b..7539c68 100644
--- a/libctru/include/3ds/services/am.h
+++ b/libctru/include/3ds/services/am.h
@@ -439,3 +439,6 @@ Result AM_ImportCertificate(u32 certSize, void* cert);
  * @param titleIds Title IDs to finalize.
  */
 Result AM_CommitImportTitlesAndUpdateFirmwareAuto(FS_MediaType mediaType, u32 titleCount, bool temp, u64* titleIds);
+
+/// Resets play count of all installed demos by deleting their launch info.
+Result AM_DeleteAllDemoLaunchInfos(void);
diff --git a/libctru/source/services/am.c b/libctru/source/services/am.c
index 4d8e640..3b18aa6 100644
--- a/libctru/source/services/am.c
+++ b/libctru/source/services/am.c
@@ -878,3 +878,15 @@ Result AM_CommitImportTitlesAndUpdateFirmwareAuto(FS_MediaType mediaType, u32 ti
 
 	return (Result)cmdbuf[1];
 }
+
+Result AM_DeleteAllDemoLaunchInfos(void)
+{
+	Result ret = 0;
+	u32 *cmdbuf = getThreadCommandBuffer();
+
+	cmdbuf[0] = IPC_MakeHeader(0x827,0,0); // 0x8270000
+
+	if(R_FAILED(ret = svcSendSyncRequest(amHandle))) return ret;
+
+	return (Result)cmdbuf[1];
+}