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Linux内核中ACPI电源管理部分解析

ACPI包括很多功能,电源管理是其功能之一,具体的ACPI的介绍可以参考ACPI的技术文档。 Linux中利用模块机制,实现ACPI对电源的管理: static struct cpufreq_driver acpi_cpufreq_driver = { .verify = acpi_cpufreq_verify, .target = acpi_cpufreq_target, .bios...

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Circular buffer

转自: http://en.wikipedia.org/wiki/Circular_buffer A circular buffer, cyclic buffer or ring buffer is a data structure that uses a single, fixed-size buffer as if it were connected end-to-end. This ...

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