File fransfer from iPad to FreeBSD

Peter A. Giessel pgiessel at
Sun Feb 18 00:28:43 UTC 2018

> On 2018, Feb 17, at 19:24, Polytropon <freebsd at> wrote:
> On Sat, 17 Feb 2018 18:45:24 -0500, Peter A. Giessel wrote:
>> [...] but back to the original question of getting photos of an
>> iPad: Have you tried GPhoto?
>> My understanding is that iOS devices (unlocked iOS devices anyway)
>> use PTP to transfer the photos.  GPhoto appears to support PTP,
>> therefore should work to transfer photos from your iOS device to
>> your laptop via USB cable.
> I've been using gphoto (and gtkam) in the past with PTP-compatible
> cameras, but I didn't expect the iPad to be compatible to such an
> "old" standard. This tool is on my list to try next week.
> However, what is the difference between an unlocked iOS device and
> a locked one? I thought there is only one state - locked... (but
> I'm not an iPerson, so my knowledge is quite limited, as I only
> occassionally get to use them). For PTP access, a ugen device will
> be needed + the software-side support on the camera device; let's
> see if the iPad fulfills that requirement.

Locked is when the screen is black and the device can’t be used.  Unlocked is when you have the device such that you can tap on the apps.  “Logged in” might be another way of saying it.  When gphoto tries to connect, the iOS device (at least the newer ones) will ask you if you want to “trust this computer”.  If you say “don’t trust”, then the iOS device will report no photos on the device.  If you choose to “trust this computer”, then the photos will show up.

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