Documentation/ABI/testing/sysfs-driver-chromeos-acpi

Source file repositories/reference/linux-study-clean/Documentation/ABI/testing/sysfs-driver-chromeos-acpi

File Facts

System
Linux kernel
Corpus path
Documentation/ABI/testing/sysfs-driver-chromeos-acpi
Extension
[no extension]
Size
4749 bytes
Lines
153
Domain
Support Tooling And Documentation
Bucket
Documentation
Inferred role
Support Tooling And Documentation: Documentation
Status
atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

What:		/sys/bus/platform/devices/GGL0001:*/BINF.2
		/sys/bus/platform/devices/GOOG0016:*/BINF.2
Date:		May 2022
KernelVersion:	5.19
Description:
		Returns active EC firmware of current boot (boolean).

		== ===============================
		0  Read only (recovery) firmware.
		1  Rewritable firmware.
		== ===============================

What:		/sys/bus/platform/devices/GGL0001:*/BINF.3
		/sys/bus/platform/devices/GOOG0016:*/BINF.3
Date:		May 2022
KernelVersion:	5.19
Description:
		Returns main firmware type for current boot (integer).

		== =====================================
		0  Recovery.
		1  Normal.
		2  Developer.
		3  Netboot (factory installation only).
		== =====================================

What:		/sys/bus/platform/devices/GGL0001:*/CHSW
		/sys/bus/platform/devices/GOOG0016:*/CHSW
Date:		May 2022
KernelVersion:	5.19
Description:
		Returns switch position for Chrome OS specific hardware
		switches when the firmware is booted (integer).

		==== ===========================================
		0    No changes.
		2    Recovery button was pressed.
		4    Recovery button was pressed (EC firmware).
		32   Developer switch was enabled.
		512  Firmware write protection was disabled.
		==== ===========================================

What:		/sys/bus/platform/devices/GGL0001:*/FMAP
		/sys/bus/platform/devices/GOOG0016:*/FMAP
Date:		May 2022
KernelVersion:	5.19
Description:
		Returns physical memory address of the start of the main
		processor firmware flashmap.

What:		/sys/bus/platform/devices/GGL0001:*/FRID
		/sys/bus/platform/devices/GOOG0016:*/FRID
Date:		May 2022
KernelVersion:	5.19
Description:
		Returns firmware version for the read-only portion of the
		main processor firmware.

What:		/sys/bus/platform/devices/GGL0001:*/FWID
		/sys/bus/platform/devices/GOOG0016:*/FWID
Date:		May 2022
KernelVersion:	5.19
Description:
		Returns firmware version for the rewritable portion of the
		main processor firmware.

What:		/sys/bus/platform/devices/GGL0001:*/GPIO.X/GPIO.0
		/sys/bus/platform/devices/GOOG0016:*/GPIO.X/GPIO.0
Date:		May 2022
KernelVersion:	5.19

Annotation

Implementation Notes