Monthly Archives: July 2013

DMA mask setup for xHCI

The xHCI interface defines data structures that are used by the xhci-hcd driver and the xHC host controller to manage the usb devices. The buffers referenced by these data structures are allocated in host memory and the transfer operations between … Continue reading

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Trace-cmd

Trace-cmd is a tool implemented by Steven Rostedt. Its purpose is to facilitate the users’ control over the kernel tracing mechanism and to add support for more elaborate parsing and display of the trace output through plugins. The trace-cmd tool … Continue reading

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Linux Kernel Tracing

Ftrace is a tracing mechanism built into the kernel which gives the ability to developers to trace specific events by inserting appropriate tracepoints into the appropriate code sites. Except from the trace event feature, the kernel can be configured to … Continue reading

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