To debug this: plug the device in, and run usbconfig list first it will give you an overview of what devices (including ports) exist, and what the OS thinks your Garmin is. Most likely your Garmin also tries to pretend something it isn't, and then a generic FreeBSD driver attaches to it, only to find that the Garmin doesn't work like a real mouse or modem. For example, I have an UPS at home, which pretends to be a keyboard or mouse, and an industrial controller, which pretends to be a modem. Unfortunately, the list of USB device classes is very coarse, so many real-world USB things give the wrong class, and then require specialized software. The other tricky question is this: there are different classes of USB devices, such as storage devices (memory sticks, disk drives), communications (modems), human interface (mice and keyboard), and so on. Since that is very little work to change, try that first.Īs the owner of an older Garmin GPS receiver, I suspect that they use a non-standard USB protocol which will only work with their proprietary software, but I'm not sure that applies. Your problem might be as simple as bad cables or connectors.
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