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435a3d78b8
This adds sysfs attribute /sys/class/chromeos/cros_ec/ap_mode_entry to expose the status of the AP_MODE_ENTRY feature. This attribute indicate whether the EC requires direction from the Application Processor (AP) before entering Type-C alternate modes or USB4 mode. This allows user-space applications to easily determine if the AP needs to be involved in mode entry. Signed-off-by: Andrei Kuchynski <akuchynski@chromium.org> Link: https://lore.kernel.org/r/20250203125947.2701106-3-akuchynski@chromium.org Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org>
53 lines
1.6 KiB
Text
53 lines
1.6 KiB
Text
What: /sys/class/chromeos/<ec-device-name>/flashinfo
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Date: August 2015
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KernelVersion: 4.2
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Description:
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Show the EC flash information.
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What: /sys/class/chromeos/<ec-device-name>/kb_wake_angle
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Date: March 2018
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KernelVersion: 4.17
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Description:
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Control the keyboard wake lid angle. Values are between
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0 and 360. This file will also show the keyboard wake lid
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angle by querying the hardware.
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What: /sys/class/chromeos/<ec-device-name>/reboot
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Date: August 2015
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KernelVersion: 4.2
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Description:
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Tell the EC to reboot in various ways. Options are:
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- "cancel": Cancel a pending reboot.
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- "ro": Jump to RO without rebooting.
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- "rw": Jump to RW without rebooting.
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- "cold": Cold reboot.
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- "disable-jump": Disable jump until next reboot.
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- "hibernate": Hibernate the EC.
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- "at-shutdown": Reboot after an AP shutdown.
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What: /sys/class/chromeos/<ec-device-name>/version
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Date: August 2015
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KernelVersion: 4.2
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Description:
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Show the information about the EC software and hardware.
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What: /sys/class/chromeos/cros_ec/usbpdmuxinfo
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Date: February 2025
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Description:
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Show PD mux status for each typec port with following flags:
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- "USB": USB connected
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- "DP": DP connected
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- "POLARITY": CC line Polarity inverted
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- "HPD_IRQ": Hot Plug Detect interrupt is asserted
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- "HPD_LVL": Hot Plug Detect level is asserted
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- "SAFE": DP is in safe mode
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- "TBT": TBT enabled
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- "USB4": USB4 enabled
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What: /sys/class/chromeos/cros_ec/ap_mode_entry
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Date: February 2025
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Description:
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Show if the AP mode entry EC feature is supported.
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It indicates whether the EC waits for direction from the AP
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to enter Type-C altmodes or USB4 mode.
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