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Vtag support is on a client basis, meaning not every client supports it. The vtag capability is communicated via the client properties structure during client enumeration process. Export the propertiy via sysfs. Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Link: https://lore.kernel.org/r/20200818115147.2567012-4-tomas.winkler@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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What: /sys/bus/mei/devices/.../modalias Date: March 2013 KernelVersion: 3.10 Contact: Samuel Ortiz sameo@linux.intel.com linux-mei@linux.intel.com Description: Stores the same MODALIAS value emitted by uevent Format: mei:::
What: /sys/bus/mei/devices/.../name Date: May 2015 KernelVersion: 4.2 Contact: Tomas Winkler tomas.winkler@intel.com Description: Stores mei client device name Format: string
What: /sys/bus/mei/devices/.../uuid Date: May 2015 KernelVersion: 4.2 Contact: Tomas Winkler tomas.winkler@intel.com Description: Stores mei client device uuid Format: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
What: /sys/bus/mei/devices/.../version Date: Aug 2015 KernelVersion: 4.3 Contact: Tomas Winkler tomas.winkler@intel.com Description: Stores mei client protocol version Format: %d
What: /sys/bus/mei/devices/.../max_conn Date: Nov 2019 KernelVersion: 5.5 Contact: Tomas Winkler tomas.winkler@intel.com Description: Stores mei client maximum number of connections Format: %d
What: /sys/bus/mei/devices/.../fixed Date: Nov 2019 KernelVersion: 5.5 Contact: Tomas Winkler tomas.winkler@intel.com Description: Stores mei client fixed address, if any Format: %d
What: /sys/bus/mei/devices/.../vtag Date: Nov 2020 KernelVersion: 5.9 Contact: Tomas Winkler tomas.winkler@intel.com Description: Stores mei client vtag support status Format: %d
What: /sys/bus/mei/devices/.../max_len Date: Nov 2019 KernelVersion: 5.5 Contact: Tomas Winkler tomas.winkler@intel.com Description: Stores mei client maximum message length Format: %d