John This worked perfectly first time with my Canon S45 Powershot.
Thank you. ed On Monday, 3 January 2005 11:29, John Layt wrote: > On Mon, 3 Jan 2005 18:14, John Layt wrote: > > Making some progress on LinuxQuestions there's this page: > > http://www.linuxquestions.org/hcl/showproduct.php?product=560 > > which points to > > http://digikam.free.fr/hotplug/howto.html > > but it appears a little outdated in places. I'll see what I can learn > > from the scripts provided and follow up later. > > > > john. > > Eureka! Got it! Between those links, and actually installing GTkam to see > what files it played with, I've figured out the secret to Mandrakes > hot-plugging :-) > > I'll write it up in full later as a step-by-step process once I have it > down pat (yes Anne, and add it to the TWiki :-), but for now here's a > high-level description of how stuff is linked in together from one script > to the next to the next to the next... > > You plug in the usb camera/scanner/whatever, the kernel doesn't recognise > it as something it has a kernel module for, so passes it on to Hotplug to > figure out what to do. Hotplug gets the device details from the device, > which includes the device id number and the device class, which is 'camera' > for a camera, 'scanner' for a scanner, etc. > > Next hotplug looks up the device id in the file /etc/hotplg/usb.usermap to > see if it's something it knows what to do with. In the case of cameras, > libgphoto2 has added to the usermap all the cameras that it supports, and > tells hotplug to run the script /etc/hotplug/usb/usbcam. Scanners are > added to the usermap by libsane and points to the > script /etc/hotplug/usb/libusbscanner and so on. When these scripts are > run, they do whatever initialisation is required, such as creating the usb > device file (/dev/usb/whatever) and setting the required permissions on it, > or downloading a required firmware to the device. > > Mandrake has added Mandrake specific parts to the camera initialisation > file to perform the autorun stuff by calling the > script /etc/dynamic/scripts/camera.script and passing it the device file to > use. The scanner scripts libusbscanner and scanner.script are provided by > libsane and as standard call the autorun stuff. These files do more > distribution specific setup work before calling yet another script, > depending on the device class and the currently running desktop, to launch > the required program (no, not there yet!). > > These scripts are kept in folders aclled /dynamic/launchers/device_class, > such as /dynamic/launchers/camera or /dynamic/launchers/scanner. In each > of these folders are files kde.desktop and gnome.desktop which are .desktop > files describing which program to autorun under that particular desktop. > In the case of Mandrake, these are actually symbolic links to the > /etc/alternatives directory, which is the standard location for defining > default applications such as your default browser. For cameras, > kde.desktop points > to /etc/alternatives/camera.kde.dynamic, likewise for gnome. But it doesn't > end there, camera.kde.dynamic is also a symbolic link back > to /etc/launchers/camera/gtkam.desktop! Finally, we've reached the actual > file that runs gtkam! > > So, in short for a digital camera: > 1) Plug in camera > 2) Look camera up in /etc/hotplg/usb.usermap > 3) Run init script /etc/hotplug/usb/usbcam to create /dev/usb entry and > call 4 4) Run /etc/dynamic/scripts/camera.script with the /dev/usb entry > and call 5 5) If under KDE, run /dynamic/launchers/camera/kde.desktop which > points to 6 6) Run /etc/alternatives/camera.kde.dynamic which points to 7 > 7) Run /etc/launchers/camera/gtkam.desktop > > So the quick hack will be to edit /etc/launchers/camera/gtkam.desktop to > actually call kaffeine instead of gtkam :-) Unfortunately, I've loaned my > digital camera to my brother for his honeymoon, so I can't confirm it > works, but if you care to try, as root edit the file so the contents appear > as follows: > > [Desktop Entry] > Name=digikam > Comment=Digital Camera Program > TryExec=/usr/bin/digikam > Exec=/usr/bin/digikam > Terminal=false > Icon=digikam.png > Type=Application > > Let me know if this works for now. > > The proper course will be to uninstall gtkam, > create /etc/launchers/camera/digikam.desktop, and create the other required > symbolic links. I'll experiment and detail that later. > > John. > > --------------------------------------------------------------------------- >-- Forget that new hard drive, save some lives instead, donate to the Red > Cross: USA: https://www.redcross.org/donate/donation-form.asp > UK: https://www.donate.bt.com/bt_form_dec.htm > Oz: https://www.redcross.org.au/Donations/onlineTsunamiDonations.asp > NZ: https://www.banqonit.com/proxypage.aspx?boiid=205
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