154 lines
4.7 KiB
Plaintext
154 lines
4.7 KiB
Plaintext
What: /sys/bus/platform/devices/GGL0001:*/BINF.2
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/sys/bus/platform/devices/GOOG0016:*/BINF.2
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Date: May 2022
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KernelVersion: 5.19
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Description:
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This file shows information about the current boot of
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the active EC firmware.
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== ===============================
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0 Read only (recovery) firmware.
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1 Rewritable firmware.
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== ===============================
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What: /sys/bus/platform/devices/GGL0001:*/BINF.3
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/sys/bus/platform/devices/GOOG0016:*/BINF.3
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Date: May 2022
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KernelVersion: 5.19
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Description:
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This file shows information about the current boot of
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the active main firmware type.
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== =====================================
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0 Recovery.
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1 Normal.
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2 Developer.
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3 Netboot (factory installation only).
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== =====================================
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What: /sys/bus/platform/devices/GGL0001:*/CHSW
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/sys/bus/platform/devices/GOOG0016:*/CHSW
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Date: May 2022
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KernelVersion: 5.19
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Description:
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This file shows the switch position for the Chrome OS specific
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hardware switches when the firmware is booted.
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==== ===========================================
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0 No changes.
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2 Recovery button was pressed.
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4 Recovery button was pressed (EC firmware).
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32 Developer switch was enabled.
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512 Firmware write protection was disabled.
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==== ===========================================
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What: /sys/bus/platform/devices/GGL0001:*/FMAP
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/sys/bus/platform/devices/GOOG0016:*/FMAP
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Date: May 2022
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KernelVersion: 5.19
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Description:
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This file shows the physical memory address of the start of
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the main processor firmware flashmap.
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What: /sys/bus/platform/devices/GGL0001:*/FRID
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/sys/bus/platform/devices/GOOG0016:*/FRID
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Date: May 2022
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KernelVersion: 5.19
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Description:
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This file shows the firmware version for the read-only portion
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of the main processor firmware.
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What: /sys/bus/platform/devices/GGL0001:*/FWID
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/sys/bus/platform/devices/GOOG0016:*/FWID
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Date: May 2022
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KernelVersion: 5.19
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Description:
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This file shows the firmware version for the rewritable portion
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of the main processor firmware.
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What: /sys/bus/platform/devices/GGL0001:*/GPIO.X/GPIO.0
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/sys/bus/platform/devices/GOOG0016:*/GPIO.X/GPIO.0
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Date: May 2022
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KernelVersion: 5.19
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Description:
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This file shows the type of the GPIO signal for the Chrome OS
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specific GPIO assignments.
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=========== ==================================
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1 Recovery button.
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2 Developer mode switch.
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3 Firmware write protection switch.
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256 to 511 Debug header GPIO 0 to GPIO 255.
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=========== ==================================
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What: /sys/bus/platform/devices/GGL0001:*/GPIO.X/GPIO.1
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/sys/bus/platform/devices/GOOG0016:*/GPIO.X/GPIO.1
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Date: May 2022
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KernelVersion: 5.19
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Description:
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This file shows the signal attributes of the GPIO signal.
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== =======================
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0 Signal is active low.
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1 Signal is active high.
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== =======================
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What: /sys/bus/platform/devices/GGL0001:*/GPIO.X/GPIO.2
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/sys/bus/platform/devices/GOOG0016:*/GPIO.X/GPIO.2
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Date: May 2022
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KernelVersion: 5.19
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Description:
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This file shows the GPIO number on the specified GPIO
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controller.
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What: /sys/bus/platform/devices/GOOG0016:*/GPIO.X/GPIO.3
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Date: May 2022
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KernelVersion: 5.19
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Description:
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This file shows the name of the GPIO controller.
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What: /sys/bus/platform/devices/GOOG0016:*/HWID
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Date: May 2022
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KernelVersion: 5.19
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Description:
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This file shows the hardware ID for the Chromebook.
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What: /sys/bus/platform/devices/GOOGG0016:*/MECK
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Date: May 2022
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KernelVersion: 5.19
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Description:
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This binary file returns the SHA-1 or SHA-256 hash that is
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read out of the Management Engine extended registers during
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boot. The hash is exported vi ACPI so the OS can verify that
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the Management Engine firmware has not changed. If Management
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Engine is not present, or if the firmware was unable to read the
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extended registers, this buffer size can be zero.
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What: /sys/bus/platform/devices/GGL0001:*/VBNV.0
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/sys/bus/platform/devices/GOOG0016:*/VBNV.0
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Date: May 2022
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KernelVersion: 5.19
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Description:
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This file shows the offset in CMOS bank 0 of the verified boot
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non-volatile storage block, counting from the first writable
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CMOS byte (that is, 'offset = 0' is the byte following the 14
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bytes of clock data).
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What: /sys/bus/platform/devices/GGL0001:*/VBNV.1
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/sys/bus/platform/devices/GOOG0016:*/VBNV.1
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Date: May 2022
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KernelVersion: 5.19
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Description:
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This file shows the size in bytes of the verified boot
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non-volatile storage block.
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What: /sys/bus/platform/devices/GGL0001:*/VDAT
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/sys/bus/platform/devices/GOOG0016:*/VDAT
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Date: May 2022
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KernelVersion: 5.19
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Description:
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This binary file returns the verified boot data block shared
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between the firmware verification step and the kernel
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verification step.
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(hex dump)
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