diff options
| author | Shivendra Pratap <shivendra.pratap@oss.qualcomm.com> | 2026-02-24 12:12:26 +0530 |
|---|---|---|
| committer | Sebastian Reichel <sebastian.reichel@collabora.com> | 2026-03-03 23:58:07 +0100 |
| commit | d3da03025e6de538ca5af346c43526a2d5494582 (patch) | |
| tree | 934457197130942f5afd978278f89790d1baeed1 /Documentation/ABI/testing | |
| parent | c10b68e331c51aed8a615af701946dd85b2aca1c (diff) | |
Documentation: ABI: Add sysfs-class-reboot-mode-reboot_modes
Add ABI documentation for /sys/class/reboot-mode/*/reboot_modes, a
read-only sysfs attribute exposing the list of supported reboot-mode
arguments. This file is created by reboot-mode framework and provides a
user-readable interface to query available reboot-mode arguments.
Reviewed-by: Bartosz Golaszewski <brgl@kernel.org>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Shivendra Pratap <shivendra.pratap@oss.qualcomm.com>
Link: https://patch.msgid.link/20260224-next-15nov_expose_sysfs-v24-1-4ee5b49d5a06@oss.qualcomm.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Diffstat (limited to 'Documentation/ABI/testing')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-class-reboot-mode-reboot_modes | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-reboot-mode-reboot_modes b/Documentation/ABI/testing/sysfs-class-reboot-mode-reboot_modes new file mode 100644 index 000000000000..a16c54ab841b --- /dev/null +++ b/Documentation/ABI/testing/sysfs-class-reboot-mode-reboot_modes @@ -0,0 +1,36 @@ +What: /sys/class/reboot-mode/<driver>/reboot_modes +Date: March 2026(TBD) +KernelVersion: TBD +Contact: linux-pm@vger.kernel.org + Description: + This interface exposes the reboot-mode arguments + registered with the reboot-mode framework. It is + a read-only interface and provides a space + separated list of reboot-mode arguments supported + on the current platform. + Example: + recovery fastboot bootloader + + The exact sysfs path may vary depending on the + name of the driver that registers the arguments. + Example: + /sys/class/reboot-mode/nvmem-reboot-mode/reboot_modes + /sys/class/reboot-mode/syscon-reboot-mode/reboot_modes + /sys/class/reboot-mode/qcom-pon/reboot_modes + + The supported arguments can be used by userspace to + invoke device reset using the standard reboot() system + call interface, with the "argument" as string to "*arg" + parameter along with LINUX_REBOOT_CMD_RESTART2. + + A driver can expose the supported arguments by + registering them with the reboot-mode framework + using the property names that follow the + mode-<argument> format. + Example: + mode-bootloader, mode-recovery. + + This attribute is useful for scripts or initramfs + logic that need to programmatically determine + which reboot-mode arguments are valid before + triggering a reboot. |