3 ms·
For work I had to connect a portable audio player to a USB audio amp recently. The amp is designed to plug into a regular computer, using standard USB-A at the
by jlokier 7y ago
For work I had to connect a portable audio player to a USB audio amp recently. The amp is designed to plug into a regular computer, using standard USB-A at the computer end.
Since the audio player had USB-C we needed a basic USB-C to USB-A adapter.
Being audio only, it was low bandwidth, USB 2.0, no power transfer: we didn't need any fancy features from the cable. Just a plain USB-C to USB-A adapter.
I think we tried five different USB-C to USB-A adapter cables from different vendors before the audio player recognised the amp it was connected to.
It was so tempting to think there was a firmware bug, until we found out it was critically dependent on some mysterious, unknowable quality of the adapter.