On Thu, Jun 08, 2017 at 03:03:35AM -0500, Damon Lynch wrote: > On Thu, Jun 8, 2017 at 2:50 AM, Marcus Meissner <meiss...@suse.de> wrote: > > > Hi, > > > > On Tue, Jun 06, 2017 at 03:02:40PM -0500, Damon Lynch wrote: > > > Hi Marcus, > > > > > > The venerable Nikon D100 uses the usbscsi interface. Can more than one > > > process access the camera simultaneously when its connected using > > usbscsi? > > > Or does the usbscsi interface present the same limitation as the PTP/MTP > > > interface, i.e. only one process may access the device at a time? > > > > I was not aware of the D100 going over usbscsi... I have it listed here as > > PTP over USB? > > > > Does it speak PTP? > > > > I have no idea. I'll ask the user who uses that camera. I'll also ask him > if gPhoto2 can access the camera while it is mounted in his file browser > using the usbscsi interface. Some more greps later ... it might be talking in "sierra" mode over USBSCSI, yes.
> > In general it will most likely be single program access. > > > > > As an aside, I don't know if it's a known characteristic or not, but a > > > Nikon D800, there are no storage descriptions returned by libgphoto2. At > > > least that was the case with one user; I don't know if it's a widespread > > > phenomena with the D800. > > > > What storage description specifically? Got with what API / cmdline? > > > > I found this problem of the missing storage description because my > application (Rapid Photo Downloader, which uses Jim Easterbrook's python > bindings) collects storage info using the API, and it was getting an empty > result for storageinfo_description. Here is some gPhoto2 output, from the > command line: It is still not clear. > $ gphoto2 --storage-info > [Storage 0] > > label=NIKON D800 [Slot 1] > basedir=/store_00010001 > access=2 Nur Lesen und Bilder löschen > type=4 Entfernbarer RAM > fstype=4 Kamera Struktur (DCIM) > totalcapacity=7878464 KB > free=7393472 KB > freeimages=1604 > [Storage 1] > label=NIKON D800 [Slot 2] > basedir=/store_00020001 > access=2 Nur Lesen und Bilder löschen > type=4 Entfernbarer RAM > fstype=4 Kamera Struktur (DCIM) > totalcapacity=31248384 KB > free=13976416 KB > freeimages=179 If the description is empty, it will not get reported... the software should handle it, the GP_STORAGEINFO_DESCRIPTION will not be set then. Ciao, Marcus ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Gphoto-devel mailing list Gphoto-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gphoto-devel
