CONFIG_VIRTIO_RTC_ARM: Virtio RTC cross-timestamping using Arm Generic Timer

General informations

The Linux kernel configuration item CONFIG_VIRTIO_RTC_ARM:

• prompt: Virtio RTC cross-timestamping using Arm Generic Timer
• type: bool
• depends on: ( CONFIG_VIRTIO_RTC_PTP && CONFIG_ARM_ARCH_TIMER ) && ( CONFIG_RTC_CLASS = CONFIG_n )
• defined in drivers/virtio/Kconfig
• found in Linux kernels: 6.16-rc+HEAD

Help text

This enables Virtio RTC cross-timestamping using the Arm Generic Timer. It only has an effect if the Virtio RTC device also supports this. The cross-timestamp is available through the PTP clock driver precise cross-timestamp ioctl (PTP_SYS_OFFSET_PRECISE2 aka PTP_SYS_OFFSET_PRECISE).

If unsure, say Y.

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The data is retrived from:

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• Linux Kernel Driver DataBase (LKDDb)

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