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authorMatthew Garrett <mjg59@srcf.ucam.org>2008-08-26 21:09:59 +0100
committerAnton Vorontsov <cbouatmailru@gmail.com>2008-09-01 02:42:54 +0400
commit942ed161944b3476639916cf544e6975b29c985a (patch)
treea05e3bd0d6b59de318f3bfc5557502c13dde1bc4 /drivers/power/Kconfig
parente82374fd1a804e197fc2a54c3930e70c5d300abc (diff)
power_supply: Add function to return system-wide power state
Certain drivers benefit from knowing whether the system is on ac or battery, for instance when determining which backlight registers to read. This adds a simple call to determine whether there's an online power supply other than any batteries. Signed-off-by: Matthew Garrett <mjg@redhat.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
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