commit d506dac0a02020faf7d689e50c1350f529d52c08
author Josh Gao <jmgao@google.com> Wed Oct 17 13:14:57 2018 -0700
committer Josh Gao <jmgao@google.com> Thu Oct 18 13:58:06 2018 -0700
tree 3c4b0f350339e72b094481e7c8e264f0174964b0
parent 613cbb42e6e224d980825d44a7c4bf3b2b0904ee

adbd: open functionfs ep0 as O_RDWR.

We need to read from ep0 to poll for events.

Test: test_device.py
Change-Id: I59602c20f5dfdb17bfbab13d3033e9333a51caf3

adb/daemon/usb_ffs.cpp

diff --git a/adb/daemon/usb_ffs.cpp b/adb/daemon/usb_ffs.cpp
index 89348c2..07b4ba8 100644
--- a/adb/daemon/usb_ffs.cpp
+++ b/adb/daemon/usb_ffs.cpp
@@ -230,7 +230,7 @@
 
     if (out_control->get() < 0) {  // might have already done this before
         LOG(INFO) << "opening control endpoint " << USB_FFS_ADB_EP0;
-        control.reset(adb_open(USB_FFS_ADB_EP0, O_WRONLY));
+        control.reset(adb_open(USB_FFS_ADB_EP0, O_RDWR));
         if (control < 0) {
             PLOG(ERROR) << "cannot open control endpoint " << USB_FFS_ADB_EP0;
             return false;