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CONFIG_TICKLESS_CAPABLE

Timer driver supports tickless operation

Type: bool

Help

Timer drivers should select this flag if they are capable of supporting tickless operation. That is, a call to z_clock_set_timeout() with a number of ticks greater than one should be expected not to produce a call to z_clock_announce() (really, not to produce an interrupt at all) until the specified expiration.

Defaults

No defaults. Implicitly defaults to n.

Symbols that select this symbol

• HPET_TIMER
• ARCV2_TIMER
• CORTEX_M_SYSTICK
• NRF_RTC_TIMER
• RISCV_MACHINE_TIMER
• XTENSA_TIMER
• SAM0_RTC_TIMER

Kconfig definition

At drivers/timer/Kconfig:202

Included via Kconfig:10 → Kconfig.zephyr:35 → drivers/Kconfig:26

Menu path: (top menu) → Device Drivers → Timer Drivers

config TICKLESS_CAPABLE
    bool
    prompt "Timer driver supports tickless operation"
    help
      Timer drivers should select this flag if they are capable of
      supporting tickless operation.  That is, a call to
      z_clock_set_timeout() with a number of ticks greater than
      one should be expected not to produce a call to
      z_clock_announce() (really, not to produce an interrupt at
      all) until the specified expiration.

(Definitions include propagated dependencies, including from if’s and menus.)