File 0004-rules-Limit-USB-autosuspend-on-USB-HID-devices.patch of Package udev
From e0386cf2809219bbdd30895f46f1f567b56902b6 Mon Sep 17 00:00:00 2001
From: Matthew Garrett <mjg@redhat.com>
Date: Fri, 25 May 2012 10:27:25 -0400
Subject: [PATCH] rules: Limit USB autosuspend on USB HID devices
Some USB ports on external hubs may be reported as "fixed". We only want
to auto-enable this on ports that are internal to the machine, so check
the parent state as well.
---
rules/42-usb-hid-pm.rules | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
Index: udev-182/rules/42-usb-hid-pm.rules
===================================================================
--- udev-182.orig/rules/42-usb-hid-pm.rules
+++ udev-182/rules/42-usb-hid-pm.rules
@@ -46,4 +46,10 @@ ACTION=="add", SUBSYSTEM=="usb", ATTRS{i
ACTION=="add", SUBSYSTEM=="usb", ATTR{idVendor}=="14dd", ATTR{idProduct}="0002", TEST=="power/control", ATTR{power/control}="auto"
# USB HID devices that are internal to the machine should also be safe to autosuspend
+
+ACTION=="add", SUBSYSTEM=="usb", SUBSYSTEMS=="usb", ATTRS{removable}=="removable", GOTO="usb_hid_pm_end"
+ACTION=="add", SUBSYSTEM=="usb", SUBSYSTEMS=="usb", ATTRS{removable}=="unknown", GOTO="usb_hid_pm_end"
+
ACTION=="add", SUBSYSTEM=="usb", ATTR{bInterfaceClass}=="03", ATTRS{removable}=="fixed", TEST=="../power/control", ATTR{../power/control}="auto"
+
+LABEL="usb_hid_pm_end"