Help¶

This option switches HPET to legacy emulation mode. In this mode 8254 PIT is disabled, HPET timer0 is connected to IOAPIC IRQ2, timer1 – to IOAPIC IRQ8.

Direct dependencies¶

HPET_TIMER

(Includes any dependencies from if’s and menus.)

Defaults¶

No defaults. Implicitly defaults to n.

Kconfig definition¶

At drivers/timer/Kconfig:23

Included via Kconfig:10 → Kconfig.zephyr:29 → drivers/Kconfig:26

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

config HPET_TIMER_LEGACY_EMULATION
    bool
    prompt "HPET timer legacy emulation mode" if HPET_TIMER
    depends on HPET_TIMER
    help
      This option switches HPET to legacy emulation mode.
      In this mode 8254 PIT is disabled, HPET timer0 is connected
      to IOAPIC IRQ2, timer1 -- to IOAPIC IRQ8.

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