Android的无线电源问题 [英] Android wifi power question

问题描述

我观察到，在默认情况下WiFi适配器进入（电源
节能模式）PSM模式。当某些应用程序，如YouTube
出现缓冲视频，所述适配器
叶PSM模式到CAM状态或全功率模式。一旦缓冲
完成后，WiFi适配器就返回到PSM模式。我观察
这种行为与其他应用程序也是如此。
是否有支持这种行为的API调用？不是
从文档清楚如何切换WIFI adapator并
出PSM模式。

I have observed that by default the wifi adaptor goes into (power saving mode) PSM mode. When Certain applications such as youtube appear to buffer video, the adaptor leaves PSM mode into CAM state or full power mode. Once the buffering is done, the wifi adaptor goes back into PSM mode. I have observed this behavior with other applications as well. Is there an API call that supports this kind of behavior? It's not clear from the documentation how to switch the WIFI adapator in and out of PSM mode.

推荐答案

无线云不属于应用程序的控制PSM或CAM，它是802.11电源管理模式 - 只要有流量，在WiFi去CAM，当传输完成，它可以追溯到PSM。在应用层，只需生成一些流量，网卡驱动程序会自动迁移到正确的模式。

WiFi goes PSM or CAM not under Application's control, it's the 802.11 Power Management Mode -- whenever there is traffic, the WiFi goes to CAM, when transfer is done, it goes back to PSM. On application layer, you simply generate some traffic, the NIC driver will automatically transit to right mode.

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