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authorMatthew Garrett <mjg59@srcf.ucam.org>2009-09-22 16:46:32 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-09-23 07:39:46 -0700
commitd8c1acb1664d17dd995e34507533321e986d9215 (patch)
tree5c8c8a60bc0da9f16a748c6ef8c3cb98f33d21be /include/linux/gpio.h
parentea3d1606fd32059461309099e8856c6652888a79 (diff)
rtc: add boot_timesource sysfs attribute
CONFIG_RTC_HCTOSYS allows the kernel to read the system time from the RTC at boot and resume, avoiding the need for userspace to do so. Unfortunately userspace currently has no way to know whether this configuration option is enabled and thus cannot sensibly choose whether to run hwclock itself or not. Add a hctosys sysfs attribute which indicates whether a given RTC set the system clock. Signed-off-by: Matthew Garrett <mjg@redhat.com> Acked-by: Alessandro Zummo <a.zummo@towertech.it> Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/gpio.h')
0 files changed, 0 insertions, 0 deletions