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authorNitin A Kamble <nitin.a.kamble@intel.com>2013-09-13 21:16:44 +0000
committerRichard Purdie <richard.purdie@linuxfoundation.org>2013-09-17 14:22:34 +0100
commitd74a0ecdbc85a482cab6e7eae8dcb48185d44d84 (patch)
treeb1c00d316f0bfa394ccedb8dcbe0673bff29e52e /meta/recipes-core/udev
parent27e7162840482c7790480be5f52c7651d5b71794 (diff)
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udev: avoid autosuspend of USB input devices
Some of the external USB devices has internal USB hub, which make them look like "fixed" rather than "removable". And USB autosuspend does not work with some of these devices resulting in inoperable pointing device. Now the code detect these false "fixed" devices by looking at their parents. If any of their parent is "removable", then USB autosuspend is not enabled for that device, which keeps the pointing device functional. Fixes bug: [YOCTO #5166] Signed-off-by: Nitin A Kamble <nitin.a.kamble@intel.com> Signed-off-by: Ross Burton <ross.burton@intel.com> Signed-off-by: Saul Wold <sgw@linux.intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'meta/recipes-core/udev')
-rw-r--r--meta/recipes-core/udev/udev.inc1
-rw-r--r--meta/recipes-core/udev/udev/avoid-mouse-autosuspend.patch25
2 files changed, 26 insertions, 0 deletions
diff --git a/meta/recipes-core/udev/udev.inc b/meta/recipes-core/udev/udev.inc
index 6606707b46..2ff8f006da 100644
--- a/meta/recipes-core/udev/udev.inc
+++ b/meta/recipes-core/udev/udev.inc
@@ -17,6 +17,7 @@ RPROVIDES_${PN} = "hotplug"
SRC_URI = "${KERNELORG_MIRROR}/linux/utils/kernel/hotplug/udev-${PV}.tar.gz \
file://0001-Fixing-keyboard_force_release.sh-shell-script-path.patch \
+ file://avoid-mouse-autosuspend.patch \
file://run.rules \
file://udev.rules \
file://devfs-udev.rules \
diff --git a/meta/recipes-core/udev/udev/avoid-mouse-autosuspend.patch b/meta/recipes-core/udev/udev/avoid-mouse-autosuspend.patch
new file mode 100644
index 0000000000..2c31b33b02
--- /dev/null
+++ b/meta/recipes-core/udev/udev/avoid-mouse-autosuspend.patch
@@ -0,0 +1,25 @@
+Source: http://cgit.freedesktop.org/systemd/systemd/commit/rules/42-usb-hid-pm.rules?id=e0386cf2809219bbdd30895f46f1f567b56902b6
+
+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.
+
+Upstream-Status: backport
+
+Signed-off-by: Nitin A Kamble <nitin.a.kamble@intel.com>
+2013/09/13
+
+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 +46,9 @@ 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
++# And skip it for devices which are external but say "fixed"
++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"
++