tree 3822976e0fed2b201c1aacd74e7e759d4986a477
parent d98c87c95342ed6eade9f1239122dc9e90dcad67
author Jack Ren <jack.ren@intel.com> 1313145544 +0800
committer Jack Ren <jack.ren@intel.com> 1336576092 +0800

adb: usb_windows: fix adb connection lost issue

Windows adb connection could be lost if the target
side kernel enables the kmemleak.

The root cause is that kmemleak downgrades USB
performance, and lead to Windows adb host application
timeout because usb_write()/usb_read()'s timeout time is
very short. That issue is not reproducible in Linux
host because its usb_write() timeout is 5s and usb_read()
is blocked until return:
                usb_write()         usb_read()
Linux           5000ms              blocked until return
Windows         500+len*8 ms        500+len*8 ms

To fix that issue, extend the Windows adb host usb_write
timeout time to 5 seconds and usb_read() as a blocked routine:
                usb_write()         usb_read()
Windows         5000ms              blocked until return

Change-Id: If54e2b4c396a5a06318c0ee0b3326a00e7661fbc
Signed-off-by: Yu Wang <yu.y.wang@intel.com>
Signed-off-by: Jin Can Zhuang <jin.can.zhuang@intel.com>
Signed-off-by: Jack Ren <jack.ren@intel.com>
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>