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I don't have this hardware setup, so I don't know what's wrong with it, but it has nothing to do with the USB specs. If they were followed, then the situation y
by error503 4y ago
I don't have this hardware setup, so I don't know what's wrong with it, but it has nothing to do with the USB specs. If they were followed, then the situation you describe wouldn't occur.
- xlii 4y agoI'm poka-yoke kind of person, so I blame process. If it's possible to manufacture incompatible device (that works with some cables and doesn't work with the others) and standard allows it and doesn't require clear markings and designations - that's an awful standard. BTW., as an update - I just received "USB 3.1 Gen 2" cable. It doesn't work.
- error503 4y agoThe standard doesn't allow it, that is my point. A baseline of USB2 connectivity is required for both cables and ports. A baseline of 5V@1.5A is required. Compliant (USB) devices are required to come up and enumerate even if they can't get the power contract they want or the speed that they want. It is on the software to convey to the user that something the device needs is missing, the USB spec can't really speak to that, but there is not any situation allowed in the spec where you connect a USB device to a USB host and there is no working data&power interface at the end. > BTW., as an update - I just received "USB 3.1 Gen 2" cable. It doesn't work. It sounds like one of your devices is broken.
- xlii 4y agoYup. And it’ll end in trash soon. So much for ecology.