trace/coresight/coresight-config.rst

34 resource usage and parameter values.
41 accesses in the driver - the resource usage and parameter descriptions
55 A parameter value is a named value that may be set by the user prior to the
61 parameter is used in programming the device.
63 The feature descriptor defines a default value for a parameter, which is used
66 Users can update parameter values using the configfs API for the CoreSight
69 The current value of the parameter is loaded into the device when the feature
87 as well as any preset values that can be used to override default parameter
94 Preset values are easily selectable sets of parameter values for the features
96 the sum of parameter values in the features used by the configuration.
99 a single parameter, and another has no parameters. A single preset set will
103 If no preset is selected, then the parameter values defined in the feature
184     parameter 'window': a number of CPU cycles (W)
185     parameter 'period': trace enabled for W cycles every period x W cycles
236 A preset to override the current parameter values can also be selected::
256 This will then use any default parameter values in the features - which can be
259 To use a preset<n> set of parameter values::
267 Note that the active sysfs configuration is a global parameter, therefore