From ea9c68eaadf4c79bb908d2c83543b314482e3648 Mon Sep 17 00:00:00 2001
From: Davide Depau <davide@depau.eu>
Date: Tue, 14 Aug 2018 19:55:29 +0200
Subject: [PATCH] Tweak block size to increase performance

---
 .../main/java/eu/depau/ddroid/services/UsbAPIWriteService.kt   | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/app/src/main/java/eu/depau/ddroid/services/UsbAPIWriteService.kt b/app/src/main/java/eu/depau/ddroid/services/UsbAPIWriteService.kt
index 2d5df85..5d4c596 100644
--- a/app/src/main/java/eu/depau/ddroid/services/UsbAPIWriteService.kt
+++ b/app/src/main/java/eu/depau/ddroid/services/UsbAPIWriteService.kt
@@ -12,7 +12,8 @@ import eu.depau.ddroid.utils.name
 import java.nio.ByteBuffer
 
 class UsbAPIWriteService : UsbWriteService("UsbAPIWriteService") {
-    val DD_BLOCKSIZE = 4096
+    // 512 * 32 bytes = USB max transfer size
+    val DD_BLOCKSIZE = 512 * 32 * 64  // 1 MB
 
     class Action {
         val WRITE_IMAGE = "eu.depau.ddroid.action.API_WRITE_IMAGE"