From: Stephen Warren Date: Thu, 5 May 2016 23:02:06 +0000 (-0600) Subject: test/py: dfu: wait for USB device to go away at boot X-Git-Url: http://git.dujemihanovic.xyz/img/static/git-logo.png?a=commitdiff_plain;h=daa69f5f5dba48406836b1879434fc4af4bb7df7;p=u-boot.git test/py: dfu: wait for USB device to go away at boot It can take a while for a host machine to notice that a USB device has disconnected, and process the change. At the end of the DFU test, we wait up to 10 seconds for this to happen. This change makes the test wait the same (up to) 10 seconds at the start of the test for any previously active USB device-mode session to be cleaned up. Such as session might have been used to download U-Boot into memory for example; this is certainly true on my Tegra test systems. This changes should solve the DFU test intermittency issues I've been seeing on some Tegra devices. Signed-off-by: Stephen Warren --- diff --git a/test/py/tests/test_dfu.py b/test/py/tests/test_dfu.py index 8649d8731b..585e6b29d7 100644 --- a/test/py/tests/test_dfu.py +++ b/test/py/tests/test_dfu.py @@ -136,6 +136,8 @@ def test_dfu(u_boot_console, env__usb_dev_port, env__dfu_config): Nothing. """ + u_boot_utils.wait_until_file_open_fails( + env__usb_dev_port['host_usb_dev_node'], True) fh = u_boot_utils.attempt_to_open_file( env__usb_dev_port['host_usb_dev_node']) if fh: