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The Linux kernel configuration item CONFIG_PTP_1588_CLOCK
:
CONFIG_NET && CONFIG_POSIX_TIMERS
ptp
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.
Numeric ID (from LKDDb) and names (from pci.ids) of recognized devices:
8086
("Intel Corporation"), device: 8819
("Platform Controller Hub EG20T IEEE 1588 Hardware Assist"), subvendor: 0000
, subdevice: 0000
Raw data from LKDDb:
lkddb module ptp CONFIG_PTP_1588_CLOCK : drivers/ptp/Kconfig : "PTP clock support" # in 3.0–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.11, 6.12-rc+HEAD
lkddb pci 8086 8819 0000 0000 ...... : CONFIG_PTP_1588_CLOCK CONFIG_PTP_1588_CLOCK_PCH : drivers/ptp/ptp_pch.c # in 3.17–3.19, 4.0–4.9
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Automatically generated (in year 2024). See also LKDDb sources on GitLab