From 05acd08a66542888dfb0034abdeed5cd31d5664c Mon Sep 17 00:00:00 2001 From: David Kiliani Date: Wed, 22 Aug 2012 15:49:41 +0200 Subject: Improve Maple device detection in reset.py on Linux Adds a function to lookup the USB vendor & product id from the udev info in the sysfs tree. This removes invalid choices and reduces user queries for the correct ttyACM device. Signed-off-by: David Kiliani --- support/scripts/reset.py | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) (limited to 'support/scripts/reset.py') diff --git a/support/scripts/reset.py b/support/scripts/reset.py index 54a7aee..bfc91e1 100755 --- a/support/scripts/reset.py +++ b/support/scripts/reset.py @@ -11,13 +11,21 @@ from struct import pack def unix_get_maple_path(file_prefix): """Try to find the device file for the Maple on *nix; assuming - that it looks like /dev/*. If there are multiple - possibilities, ask the user what to do. If the user chooses not - to say, returns None.""" + that it looks like /dev/* and has the correct ID in + the /sys tree. If there are multiple possibilities, ask the user + what to do. If the user chooses not to say, returns None.""" possible_paths = [os.path.join('/dev', x) for x in os.listdir('/dev') \ - if x.startswith(file_prefix)] + if (x.startswith(file_prefix) and tty_is_maple(x))] return choose_path(possible_paths) +def tty_is_maple(device): + try: + sysfile = open("/sys/class/tty/%s/device/uevent" % device, "r") + text = "".join(sysfile.readlines()) + return "PRODUCT=1eaf/4" in text + except IOError: # no udev info available + return True + def windows_get_maple_path(): """Similar to unix_get_maple_path(), but on Windows.""" import _winreg as reg -- cgit v1.2.3