Comment Re:Hidden iPod Shuffle features? (Score 5, Informative) 409
Probably no secret features.
Standard USB specifies the existence of hosts (with Type-A connectors) (such as desktop computers) and peripherals (with Type-B connectors) (such as hard drives, cell phones, digital cameras, etc.) Hosts are not supposed to connect to each other, and neither are peripherals.
The USB-To-Go specification was created in order to allow pseudo-peripheral devices to connect to each other (e.g., you might connect your cell phone to camera so that the phone can send the data, even though both of these are peripherals to your Mac). By connecting the fifth pin of the type-B connector to ground, Vcc, or letting it float, you indicate to the other (type-B) device whether you want to act as the host, act as the peripheral, or whether you just behave like a standard USB device.
Coincidentally, most of the mini-B connectors sold these days are 5-pin, because legacy devices can just leave the fifth pin floating. From the manufacturer's point of view, there is no reason to have two types of interchangable items in stock. So my guess is that AAPL bought what was for sale on the market.
--js
Standard USB specifies the existence of hosts (with Type-A connectors) (such as desktop computers) and peripherals (with Type-B connectors) (such as hard drives, cell phones, digital cameras, etc.) Hosts are not supposed to connect to each other, and neither are peripherals.
The USB-To-Go specification was created in order to allow pseudo-peripheral devices to connect to each other (e.g., you might connect your cell phone to camera so that the phone can send the data, even though both of these are peripherals to your Mac). By connecting the fifth pin of the type-B connector to ground, Vcc, or letting it float, you indicate to the other (type-B) device whether you want to act as the host, act as the peripheral, or whether you just behave like a standard USB device.
Coincidentally, most of the mini-B connectors sold these days are 5-pin, because legacy devices can just leave the fifth pin floating. From the manufacturer's point of view, there is no reason to have two types of interchangable items in stock. So my guess is that AAPL bought what was for sale on the market.
--js
