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Q. Can Air Display communicate over the USB cable to my Mac or PC?
A. Yes and no.
In order for iOS apps like Air Display to access the USB bus via the 30-pin dock connector, its developer must be part of Apple’s Made for iPod/iPhone/iPad (MFi) program. As Avatron is not a hardware shop, we are not eligible for this program and therefore cannot support USB. So the answer is No.
On the other hand, Yes. A user named Aaron Nelson over at HijinksInc.com details a nifty workaround to allow Air Display to run over USB. But only on jailbroken iPads.
To set up Air Display over USB you’ll need:
• A jailbroken iPad
(WARNING: We’ll leave the jailbreaking details up to your Google skills. We’ll also mention that Avatron doesn’t advocate jail breaking your your Apple device, nor will we take any responsibility for any damage incurred by your device through attempting this)
• An app to enable USB tethering
An example is MyWi 5.0 from the Cydia App Store. USB tethering turns the iPad’s USB port into another network adapter, and assigns an additional IP address to both your iPad and your Mac.
After installing MyWi on your iPad, enable USB tethering and connect your iPad to your Mac using a USB cable. MyWi adds a status to the toolbar, and you can see that there is one client (the Mac) attached.
Back on your Mac, if you look at Settings > Network you’ll notice a new network connection called iPad USB. You’ll also see the IP address that has been allocated to the Mac. In this case it’s 192.168.20.2. As this is essentially a point-to-point network we can safely assume the IP address of the iPad is 192.168.20.1. That IP address can be used later in Air Display to “Connect to Other” if necessary.
On your Mac, momentarily disable your Wi-Fi or wired network; otherwise a bug will prevent you from connecting. Start Air Display on your iPad, and then connect to it from your Mac as you would normally. At this point you can re-enable your Wi-Fi or wired network again.
It’s as simple as that! Thanks again to Aaron for posting such a useful workaround.
(We should also point out that our Tech Support team doesn’t have jailbroken devices and can’t actually support this clever technique.)