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| author | Alexander Usyskin <alexander.usyskin@intel.com> | 2019-04-22 08:51:07 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-04-25 19:33:34 +0200 |
| commit | 43b8a7ed4739a86c1e8543489bf5524780f66284 (patch) | |
| tree | b957696646ce67eed8211b5bb1d0398125100ece /Documentation/ABI/testing | |
| parent | mei: hdcp: use own Kconfig file (diff) | |
| download | linux-43b8a7ed4739a86c1e8543489bf5524780f66284.tar.xz linux-43b8a7ed4739a86c1e8543489bf5524780f66284.zip | |
mei: expose device state in sysfs
Expose mei device state to user-space through sysfs.
This gives indication to applications that driver is in transition,
usefully mostly to detect link reset state.
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/ABI/testing')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-class-mei | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-mei b/Documentation/ABI/testing/sysfs-class-mei index 17d7444a2397..a92d844f806e 100644 --- a/Documentation/ABI/testing/sysfs-class-mei +++ b/Documentation/ABI/testing/sysfs-class-mei @@ -65,3 +65,18 @@ Description: Display the ME firmware version. <platform>:<major>.<minor>.<milestone>.<build_no>. There can be up to three such blocks for different FW components. + +What: /sys/class/mei/meiN/dev_state +Date: Mar 2019 +KernelVersion: 5.1 +Contact: Tomas Winkler <tomas.winkler@intel.com> +Description: Display the ME device state. + + The device state can have following values: + INITIALIZING + INIT_CLIENTS + ENABLED + RESETTING + DISABLED + POWER_DOWN + POWER_UP |