CONFIG_PTP_1588_CLOCK: PTP clock support

General informations

The Linux kernel configuration item CONFIG_PTP_1588_CLOCK:

• prompt: PTP clock support
• type: tristate
• depends on: CONFIG_NET && CONFIG_POSIX_TIMERS
• defined in drivers/ptp/Kconfig
• found in Linux kernels: 3.0–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.8, 6.9-rc+HEAD
• modules built: ptp

Help text

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.

Hardware

PCI

Numeric ID (from LKDDb) and names (from pci.ids) of recognized devices:

• vendor: 8086 ("Intel Corporation"), device: 8819 ("Platform Controller Hub EG20T IEEE 1588 Hardware Assist"), subvendor: 0000, subdevice: 0000

LKDDb

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, 6.0–6.8, 6.9-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

Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)
• The Linux PCI ID Repository.

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