What: /sys/class/stm_source/<stm_source>/stm_source_link
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Date: June 2015
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KernelVersion: 4.3
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Contact: Alexander Shishkin <alexander.shishkin@linux.intel.com>
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Description:
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stm_source device linkage to stm device, where its tracing data
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is directed. Reads return an existing connection or "<none>" if
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this stm_source is not connected to any stm device yet.
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Write an existing (registered) stm device's name here to
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connect that device. If a device is already connected to this
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stm_source, it will first be disconnected.
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