[kde-linux] cannot connect to digital camera via USB

[Kevin Kempter]

On Saturday 01 December 2007 19:28:09 david wrote:
> Kevin Kempter wrote:
> > Hi LIst;
> >
> > I just bought a new Nikon D300 digital SLR - it uses a 4G compact flash
> > card. I'm running Fedora 7 & KDE. When I plug it it I get the dialog
> > asking me what to do, I select 'open in new window' and a new konqueror
> > window opens pointed to 'system:/media/camera' but no files show up. Then
> > I get a opo-up dialog that says :
> >
> > "Could not read file Could not claim the USB device"
> >
> >
> > dmesg shows this:
> > bridge-wlan0: enabling the bridge
> > bridge-wlan0: up
> > sky2 eth0: enabling interface
> > ADDRCONF(NETDEV_UP): eth0: link is not ready
> > bridge-eth0: enabling the bridge
> > bridge-eth0: up
> > [drm] Initialized drm 1.1.0 20060810
> > [drm] Initialized i915 1.6.0 20060119 on minor 0
> > wlan0: Initial auth_alg=0
> > wlan0: authenticate with AP 00:14:6c:1a:97:32
> > wlan0: RX authentication from 00:14:6c:1a:97:32 (alg=0 transaction=2
> > status=0) wlan0: authenticated
> > wlan0: associate with AP 00:14:6c:1a:97:32
> > wlan0: authentication frame received from 00:14:6c:1a:97:32, but not in
> > authenticate state - ignored
> > wlan0: RX AssocResp from 00:14:6c:1a:97:32 (capab=0x421 status=0 aid=1)
> > wlan0: associated
> > wlan0: switched to short barker preamble (BSSID=00:14:6c:1a:97:32)
> > ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
> > wlan0: no IPv6 routers present
> > usb 5-3: new high speed USB device using ehci_hcd and address 6
> > usb 5-3: configuration #1 chosen from 1 choice
> > VMBlock warning: DentryOpRevalidate: invalid args from kernel
> > VMBlock warning: DentryOpRevalidate: invalid args from kernel
> > VMBlock warning: DentryOpRevalidate: invalid args from kernel
> > VMBlock warning: DentryOpRevalidate: invalid args from kernel
> >
> >
> >
> > I'm not sure how to go about debugging this or even what device name I
> > would use to try a manual mount command. Any thoughts?
>
> lsusb should give you some idea of where the camera is appearing on the
> device list. Then you could try mounting that.
>
> > Also, would a compact flash reader be a better solution with Linux - my
> > old camera used SD cards and in general SD readers worked fine with my
> > Linux machines.
>
> I would go with the flash reader instead - they're very low priced. I
> have one that reads about 8 different card formats, and Linux has no
> problem with any of them.

Good advice. Which one are you using?


>
> Another reason to use an external reader is that when you plug into your
> camera, your camera is using its battery - sometimes at a prodigious
> rate - and you could easily have the camera battery die while you're
> using it.