>note that in these cases on the other side of the cable you usually have a USB-A plug
Usually a full-size USB-A, you mean, because what we commonly know as mini-USB and micro-USB are actually mini-B and micro-B, which have corresponding (but now rarely used) micro-A and micro-A ports. Before USB-OTG, USB used to be an explicitly directional protocol, with a master and a slave device.
Usually a full-size USB-A, you mean, because what we commonly know as mini-USB and micro-USB are actually mini-B and micro-B, which have corresponding (but now rarely used) micro-A and micro-A ports. Before USB-OTG, USB used to be an explicitly directional protocol, with a master and a slave device.
https://upload.wikimedia.org/wikipedia/commons/8/82/USB_2.0_...
https://en.wikipedia.org/wiki/USB_hardware