c5c3e19225
This patch adds the sysfs interface to the RTC subsystem. Each RTC client will have his own entry under /sys/classs/rtc/rtcN . Within this entry some attributes are exported by the subsystem, like date and time. Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
58 lines
1.3 KiB
Plaintext
58 lines
1.3 KiB
Plaintext
\#
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# RTC class/drivers configuration
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#
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menu "Real Time Clock"
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config RTC_LIB
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tristate
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config RTC_CLASS
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tristate "RTC class"
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depends on EXPERIMENTAL
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default n
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select RTC_LIB
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help
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Generic RTC class support. If you say yes here, you will
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be allowed to plug one or more RTCs to your system. You will
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probably want to enable one of more of the interfaces below.
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This driver can also be built as a module. If so, the module
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will be called rtc-class.
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config RTC_HCTOSYS
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bool "Set system time from RTC on startup"
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depends on RTC_CLASS = y
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default y
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help
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If you say yes here, the system time will be set using
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the value read from the specified RTC device. This is useful
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in order to avoid unnecessary fschk runs.
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config RTC_HCTOSYS_DEVICE
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string "The RTC to read the time from"
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depends on RTC_HCTOSYS = y
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default "rtc0"
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help
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The RTC device that will be used as the source for
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the system time, usually rtc0.
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comment "RTC interfaces"
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depends on RTC_CLASS
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config RTC_INTF_SYSFS
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tristate "sysfs"
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depends on RTC_CLASS && SYSFS
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default RTC_CLASS
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help
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Say yes here if you want to use your RTC using the sysfs
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interface, /sys/class/rtc/rtcX .
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This driver can also be built as a module. If so, the module
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will be called rtc-sysfs.
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comment "RTC drivers"
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depends on RTC_CLASS
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endmenu
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