Re: Getting an old Canon A520 to work with Gphoto

That combination should get me mass storage mode I assume.  No, I see
nothing.  Forgot to mention, I'm using Gphoto 2-2.5.15 I built from
the tarball.  The version in the Raspbian debs is a couple years old.

Something like having been dropped with the connector plugged in is
what I worry about.  It just acts like a worn out microusb on a phone
or Kindle, like it doesn't make contact.  I've tried wiggling it.  The
pins look OK.

On 12/13/17, Mark Wagner <[email protected]> wrote:
> On Wed, Dec 13, 2017 at 9:20 AM, Alan Corey <[email protected]> wrote:
>> Nothing I can do makes the Canon show up in dmesg, lsusb, gtkam on my
>> Pi.  I've got a thread at
>> https://photo.stackexchange.com/questions/94695/getting-an-old-canon-a520-usb-recognized
>>  but they don't seem to be Linux people.  I can go into gtkam and pick
>> that model specifically from the list of cameras, it still doesn't
>> work.  Meanwhile Gphoto and gtkam are working fine with my 2 Nikons.
>>
>> The camera is from 2005, somewhere appears a note that it isn't
>> guaranteed to work with any USB 2.0 compliant device.  I'm trying to
>> use it plugged directly into a Raspberry Pi 3B, no hub or extension
>> cable between.  It's possible I might have an old laptop that's
>> pre-USB 2.0, but not much else.  Has anyone used one of these recently
>> with Gphoto?  Is it possible some change broke it and nobody noticed?
>> The fact that it doesn't show up in lsusb seems ominous but I think
>> I've seen that in 1 or 2 other cases where only a specific driver
>> would find a device.  I have tried it both in acquisition and playback
>> modes, figuring it probably does a USB mode switch.
>
> I've used an A520 plugged into a USB 2.0 port on a computer (not
> recently, though: the USB connector stopped working after I
> accidentally knocked the camera off the table while it was plugged
> in).  As I recall, it was a bit finicky about the precise order of
> operations when connecting it to a computer: with the camera turned
> off and disconnected from the computer, put it in playback mode.
> Power it up, still disconnected, and once it's ready to go, plug it
> in.  At this point, it should show up in dmesg/lsusb regardless of
> drivers.
>
> --
> Mark
>
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