[deliverable/linux.git] / drivers / ptp / Kconfig

#
# PTP clock support configuration
#

menu "PTP clock support"

comment "Enable Device Drivers -> PPS to see the PTP clock options."
	depends on PPS=n

config PTP_1588_CLOCK
	tristate "PTP clock support"
	depends on EXPERIMENTAL
	depends on PPS
	help
	  The IEEE 1588 standard defines a method to precisely
	  synchronize distributed clocks over Ethernet networks. The
	  standard defines a Precision Time Protocol (PTP), which can
	  be used to achieve synchronization within a few dozen
	  microseconds. In addition, with the help of special hardware
	  time stamping units, it can be possible to achieve
	  synchronization to within a few hundred nanoseconds.

	  This driver adds support for PTP clocks as character
	  devices. If you want to use a PTP clock, then you should
	  also enable at least one clock driver as well.

	  To compile this driver as a module, choose M here: the module
	  will be called ptp.

endmenu
Commit	Line	Data
d94ba80e RC	1	#
	2	# PTP clock support configuration
	3	#
	4
	5	menu "PTP clock support"
	6
	7	comment "Enable Device Drivers -> PPS to see the PTP clock options."
	8	depends on PPS=n
	9
	10	config PTP_1588_CLOCK
	11	tristate "PTP clock support"
	12	depends on EXPERIMENTAL
	13	depends on PPS
	14	help
	15	The IEEE 1588 standard defines a method to precisely
	16	synchronize distributed clocks over Ethernet networks. The
	17	standard defines a Precision Time Protocol (PTP), which can
	18	be used to achieve synchronization within a few dozen
	19	microseconds. In addition, with the help of special hardware
	20	time stamping units, it can be possible to achieve
	21	synchronization to within a few hundred nanoseconds.
	22
	23	This driver adds support for PTP clocks as character
	24	devices. If you want to use a PTP clock, then you should
	25	also enable at least one clock driver as well.
	26
	27	To compile this driver as a module, choose M here: the module
	28	will be called ptp.
	29
	30	endmenu