Yocto USB电源管理问题
[英]Problems with Yocto USB power management
问题描述
Started to work with Yocto and is trying to get a modem to sleep using USB suspend. 
开始使用Yocto，并尝试使用USB挂起使调制解调器进入睡眠状态。 According to the guides I've seen, you can do this in the sysfs with some power configs/commands. 根据我所看到的指南，您可以使用一些强大的配置/命令在sysfs中执行此操作。
I think I have figured out the path to my device (Bus 001 Device 003: ID 1e2d:005b) as /sys/bus/usb/devices/1-1:1.3. 我想我已经找到了我的设备（总线001设备003：ID 1e2d：005b）的路径为/sys/bus/usb/devices/1-1:1.3。
There is a power folder here, but it is empty. 这里有一个电源文件夹，但它是空的。 There should as I understand it be several files here, like wakeup, control, autosuspend_delay_ms, but there is none. 据我了解，这里应该有几个文件，例如唤醒，控制，autosuspend_delay_ms，但是没有。 Could I be missing some package for this? 我可以为此缺少一些包裹吗？
1 个解决方案
解决方案1
0 2018-05-02 09:59:57
I don't think that you missed any of package in yocto. 我认为您没有错过yocto中的任何包裹。 AFAIK it is function of the linux kernel to export some files under /sys/bus/devices. AFAIK是Linux内核的功能，用于导出/ sys / bus / devices下的某些文件。 Maybe you didn't enable some features in kernel config file? 也许您没有在内核配置文件中启用某些功能？
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