CONFIG_POSIX_TIMERS: Posix Clocks & timers

General informations

The Linux kernel configuration item CONFIG_POSIX_TIMERS:

• prompt: Posix Clocks & timers
• type: bool
• depends on: CONFIG_EXPERT
• defined in init/Kconfig
• found in Linux kernels: 4.10–4.20, 5.0–5.19, 6.0–6.12, 6.13-rc+HEAD

Help text

This includes native support for POSIX timers to the kernel. Some embedded systems have no use for them and therefore they can be configured out to reduce the size of the kernel image.

When this option is disabled, the following syscalls won't be available: timer_create, timer_gettime: timer_getoverrun, timer_settime, timer_delete, clock_adjtime, getitimer, setitimer, alarm. Furthermore, the clock_settime, clock_gettime, clock_getres and clock_nanosleep syscalls will be limited to CLOCK_REALTIME, CLOCK_MONOTONIC and CLOCK_BOOTTIME only.

If unsure say y.

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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)

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