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tests: test_dfu.py: Add example udev rule for host_usb_dev_node

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If one does not already have a rule to create a custom device node when
a given device enumerates it can be useful to have udev create a
bus path based node to the entry in /dev/bus/usb that was just
enumerated.  Given that DFU itself does not require a /dev entry it is a
good idea to provide a rule that will generate one.

Signed-off-by: Tom Rini <trini@konsulko.com>
This commit is contained in:
Tom Rini 2016-08-29 09:57:01 -04:00
parent 7e99e14d4b
commit 845e10d165
1 changed files with 7 additions and 0 deletions
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7
test/py/tests/test_dfu.py
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@ -80,6 +80,13 @@ ACTION=="add", SUBSYSTEM=="block", SUBSYSTEMS=="usb", KERNELS=="3-13", MODE:="66
(You may wish to change the group ID instead of setting the permissions wide
open. All that matters is that the user ID running the test can access the
device.)
c) An optional udev rule to give you a persistent value to use in
host_usb_dev_node. For example:
IMPORT{builtin}="path_id"
ENV{ID_PATH}=="?*", ENV{.ID_PORT}=="", SYMLINK+="bus/usb/by-path/$env{ID_PATH}"
ENV{ID_PATH}=="?*", ENV{.ID_PORT}=="?*", SYMLINK+="bus/usb/by-path/$env{ID_PATH}-port$env{.ID_PORT}"
"""
# The set of file sizes to test. These values trigger various edge-cases such