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Currently, an error from wakeup_sysfs_add() in device_set_wakeup_capable() causes the device's power.can_wakeup flag to remain unset even though the device technically is capable of signaling wakeup. If wakeup_sysfs_add() fails user space may not be able to enable the device to wake up the system from sleep states, but at least for some devices that does not matter. For this reason, set or clear power.can_wakeup upfront and if wakeup_sysfs_add() returns an error, print a message to the log. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.