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

• NRF_TIMER_TIMER

• APIC_TIMER

• HPET_TIMER

• ARCV2_TIMER

• ARM_ARCH_TIMER

• CORTEX_M_SYSTICK

• NRF_RTC_TIMER

• STM32_LPTIM_TIMER

• RISCV_MACHINE_TIMER

• NATIVE_POSIX_TIMER

• XTENSA_TIMER

• SAM0_RTC_TIMER

• MCHP_XEC_RTOS_TIMER

• CC13X2_CC26X2_RTC_TIMER

• XLNX_PSTTC_TIMER

• CAVS_TIMER

Kconfig definition

At <Zephyr>/drivers/timer/Kconfig:331

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:32 → <Zephyr>/drivers/Kconfig:28

Menu path: (Top) → Device Drivers → Timer Drivers

config TICKLESS_CAPABLE
    bool "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.

(The ‘depends on’ condition includes propagated dependencies from ifs and menus.)