commit 16798b8dbe947c01005cee7cb5b81e2c8cbee0b2
author Hridya Valsaraju <hridya@google.com> Tue May 21 13:03:24 2019 -0700
committer Hridya Valsaraju <hridya@google.com> Tue May 21 13:08:52 2019 -0700
tree 123248e1d2a9acb50b0d50cb7bcaa5bf5243f85d
parent 07d4f701f0615d9cfd431c8de6d93cbacb7d49ad

fastbootd: reduce USB buffer size to 16K

Some USB controllers can only support transfers upto 16K.

Bug: 133208811
Test: fastboot flashall
Change-Id: Ic025bdd8e7a6cf2634fc24524fd189e0cc9efbb5

fastboot/device/usb_client.cpp

diff --git a/fastboot/device/usb_client.cpp b/fastboot/device/usb_client.cpp
index 511bd5c..2f0cca7 100644
--- a/fastboot/device/usb_client.cpp
+++ b/fastboot/device/usb_client.cpp
@@ -33,7 +33,7 @@
 constexpr int kMaxPacketsizeSs = 1024;
 
 constexpr size_t kFbFfsNumBufs = 16;
-constexpr size_t kFbFfsBufSize = 32768;
+constexpr size_t kFbFfsBufSize = 16384;
 
 constexpr const char* kUsbFfsFastbootEp0 = "/dev/usb-ffs/fastboot/ep0";
 constexpr const char* kUsbFfsFastbootOut = "/dev/usb-ffs/fastboot/ep1";