Re: [gphoto-devel] ptp2 driver help

[Marcus M. <ma...@je...>]

On Wed, Aug 27, 2008 at 08:29:13AM -0500, Chris Bagwell wrote:
> Marcus Meissner wrote:
> > How is it detected by gphoto2 --auto-detect  ? 
> >
> >   
> I've never traced --auto-detect yet.  I've been using --summary mostly.
> 
> Model                          Port           
> ----------------------------------------------------------
> MTP Device                     usb:           
> MTP Device                     usb:001,033    
> 
> The second line is the correct busname,devname.  Is the first line 
> printed from detect_by_class?

No, these are the result of the autodetection in libgphoto2_port/usb/libusb.c.

> >> My devices abilities are being set based on detecting it as generic MTP 
> >> Device which is bad because there are better more specific entries that 
> >> should be used.
> >>     
> >
> > A second probe is run for some reason. Might be the way you called gphoto2.
> >   
> I ran with --summary.  I noticed even more probes when it starts to do 
> real work but I ignored those.  I could tell it was from a second call 
> to a probe function.  But I can't explain right now why I get two "MTP 
> Device" probes before it tries to probe my exact USB ID.

> > So what USB id does your device have? 
> >   
> Bus 001 Device 033: ID 18f6:0110 
> 
> Above is from lsusb.  Notice no device description.  Is that an issue?  
> Also, I've installed under /usr/local/gphoto2 and so probably bypassing 
> any udev type stuff.
> 
> > Is your device listed in "gphoto2 --list-cameras"?
> >   
>         "MTP Device" (TESTING)
>         "Sirius Stiletto 2"
> 
> ptp2/music-players.h also lists 18f6:0110 as well.
> 
> Does libgphoto2 probe in the order of this output?  That would explain 
> the issue if so.

MTP Device probing is very different from the USB id probing,
and I actually thought it would find Sirius Stiletto 2 first then.
At least it does this for my Creative Zen Microphoto and iRiver, but
both are alphabetically before MTP Device. :)


Anyway, in the end it should find the device just fine.


Now, for the problem itself:
libgphoto2-2_4/libgphoto2//camlibs/ptp2/music-players.h
has:
  { "Sirius", 0x18f6, "Stiletto 2", 0x0110, DEVICE_FLAG_BROKEN_MTPGETOBJPROPLIST },

You should replace this flag by 0 to get the proplist call I think.

Ciao, Marcus