Mac OS与/dev/ttyUSBxx类似 [英] Mac OS analog to /dev/ttyUSBxx

问题描述

我曾经使用过Linux USB端口命名，也就是/dev/ttyUSBxx，目前正在尝试编写一些测试软件以将原始数据读/写到iMac上的USB端口，但是我发现很难检测到我的USB硬件是哪个端口连接的.我已经尝试使用/dev/ttys"x"，但是没有运气.

I used to linux USB port naming, aka /dev/ttyUSBxx and currently trying to write some test software to read/wrtie raw data to USB ports on iMac, but i find it hard to detect to which port my usb hardware is connected. I have tried up to a using /dev/ttys"x" but no luck.

在系统信息中，我看到位置ID:0xfa120000/6附带的硬件 也许这可以有所帮助吗?

In the system information i see the hardware attached at Location ID: 0xfa120000 / 6 maybe this can help somehow?

推荐答案

OS X不会为原始访问USB设备创建/dev条目，因此无法将它们作为TTY设备访问.

OS X doesn't create a /dev entry for raw access to USB devices, and there's no way to access them as TTY devices.

部分原因是Linux和BSD在哲学上有所不同，部分原因是驱动程序编写技术的不同，部分原因是已经具有必须映射到的明确定义的层次结构(IOKit注册中心)/dev层次结构以某种复杂的方式.

Partly this is a different in philosophy between Linux and BSD, partly it's a difference in driver-writing technology, and partly it's a matter of already having a well-defined hierarchy (the IOKit Registry) that would have to be mapped to the /dev hierarchy in some complicated way.

无论如何，如果您想了解如何应该在Mac上访问USB设备，请从

At any rate, if you want to learn how you should access USB devices on a Mac, start with QA1370. If you're looking to do a quick port of some linux code without actually learning IOKit/IOUSB, it's probably going to be impossible. If you're looking for something else, you'll need to give more info about what you're trying to do.

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