To verify the udev rule is operating properly I use this test case:
# echo "auto" > /sys/bus/usb/devices/1-1.4/power/control; cat
/sys/bus/usb/devices/*/power/control; echo "---"; service udev force-reload ;
udevadm test /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.4 > /tmp/foo 2>&1;
cat /sys/bus/usb/devices/*/power/control
auto
auto
auto
auto
auto
auto
auto
---
on
auto
auto
auto
auto
auto
auto
** Also affects: udev (Ubuntu Trusty)
Importance: Undecided
Status: New
** Also affects: udev (Ubuntu Utopic)
Importance: Undecided
Status: New
** Summary changed:
- Disable USB autosuspend for Avocent SC Secure KVM
+ Please disable USB autosuspend for Avocent SC Secure KVM
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https://bugs.launchpad.net/bugs/1371403
Title:
Please disable USB autosuspend for Avocent SC Secure KVM
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