CONFIG_ACPI_TAD: ACPI Time and Alarm (TAD) Device Support

General informations

The Linux kernel configuration item CONFIG_ACPI_TAD:

• prompt: ACPI Time and Alarm (TAD) Device Support
• type: tristate
• depends on: CONFIG_SYSFS && CONFIG_PM_SLEEP
• defined in drivers/acpi/Kconfig
• found in Linux kernels: 4.17–4.20, 5.0–5.19, 6.0–6.13
• modules built: acpi_tad

Help text

The ACPI Time and Alarm (TAD) device is an alternative to the Real Time Clock (RTC). Its wake timers allow the system to transition from the S3 (or optionally S4/S5) state to S0 state after a time period elapses. In comparison with the RTC Alarm, the TAD provides a larger scale of flexibility in the wake timers. The time capabilities of the TAD maintain the time of day information across platform power transitions, and keep track of time even when the platform is turned off.

Hardware

LKDDb

Raw data from LKDDb:

• lkddb acpi "ACPI000E" : CONFIG_ACPI CONFIG_ACPI_TAD : drivers/acpi/acpi_tad.c # in 4.17–4.20, 5.0–5.19, 6.0–6.13
• lkddb module acpi_tad CONFIG_ACPI_TAD : drivers/acpi/Kconfig : "ACPI Time and Alarm (TAD) Device Support" # in 4.17–4.20, 5.0–5.19, 6.0–6.13
• lkddb platform "acpi-tad" : CONFIG_ACPI CONFIG_ACPI_TAD : drivers/acpi/acpi_tad.c # in 4.17–4.20, 5.0–5.19, 6.0–6.13

Sources

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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