libusb并轮询/选择 [英] libusb and poll / select

问题描述

我正在使用Linux操作系统，想知道是否有任何我可以轮询/选择的文件描述符，这些描述符会在等待从USB设备读取数据时触发.我也在使用libusb库，还没有找到我可以使用的文件描述符.

I'm using a linux OS and was wondering if there were any file descriptors I could poll/select which would trigger when data was waiting to be read from a usb device. I am also using the libusb library and have yet to find file descriptors which I can use.

推荐答案

使用 libusb的轮询功能将其文件描述符链接到事件循环中.每当libusb需要处理的活动(包括但不限于可读取的数据)时，select就会唤醒.

Use libusb's polling functions to hook its file descriptors into your event loop. select will wake up whenever there's activity that libusb will need to handle, which includes but probably is not limited to data being available for reading.

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