From: Tejun Heo Date: Tue, 12 Mar 2013 18:30:05 +0000 (-0700) Subject: driver/base: implement subsys_virtual_register() X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~125^2~51^2 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d73ce004225a7b2ed75f4340bb63721d55552265;p=pandora-kernel.git driver/base: implement subsys_virtual_register() Kay tells me the most appropriate place to expose workqueues to userland would be /sys/devices/virtual/workqueues/WQ_NAME which is symlinked to /sys/bus/workqueue/devices/WQ_NAME and that we're lacking a way to do that outside of driver core as virtual_device_parent() isn't exported and there's no inteface to conveniently create a virtual subsystem. This patch implements subsys_virtual_register() by factoring out subsys_register() from subsys_system_register() and using it with virtual_device_parent() as the origin directory. It's identical to subsys_system_register() other than the origin directory but we aren't gonna restrict the device names which should be used under it. This will be used to expose workqueue attributes to userland. Signed-off-by: Tejun Heo Acked-by: Greg Kroah-Hartman Cc: Kay Sievers --- Reading git-diff-tree failed