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--- powershot_s2_is [2006/10/16 23:11] – 206.161.205.184
+++ powershot_s2_is [2008/01/08 19:57] (current) – 208.124.147.234
@@ Line 1: / Line 1: @@
+====== Canon Powershot S2 IS ======
+{{http://images-eu.amazon.com/images/P/B0009JQQDW.03.LZZZZZZZ.jpg?200 }} The PowerShot S2 is not a //mass storage// device so you can't just mount it to get the pictures. Instead it uses the //Picture Transfer Protocol// (PTP). A userspace tool which speaks this protocol is [[http://www.gphoto.org|gphoto2]]. The PowerShot S2 is supported since version 2.1.6.
+===== gphoto2 Setup on Debian =====
+==== with hotplug ====
+The 2.1.6 release is only available in the unstable branch:
+  #> apt-get -t unstable install gphoto2
+or under Gentoo (the rest of the directions here work just fine under gentoo (thanks to original poster)).
+  {~} $ emerge gphoto2
+To make it work for non-root users do the following to let hotplug set up the correct permissions for you:
+  #> /usr/lib/libgphoto2/print-usb-usermap |sed -e 's/^usbcam/libgphoto2/' > /etc/hotplug/usb/libgphoto2.usermap
+The above step makes sure all cams supported by libgphoto2 are known to the hotplug daemon. Debian uses a different script than the default install thus the [[man>sed]]. The rest needed should be set up by the debian package already. If not refer to the [[http://www.gphoto.org/doc/manual/permissions-usb.html|gphoto2 manual]]. The only thing left is to add the users which are allowed to access the cam to the group ''camera''.
+Connecting the camera should print the following in the syslog:
+  Jul 30 16:47:09 rumpel kernel: usb 1-4: new high speed USB device using address 12
+  Jul 30 16:47:09 rumpel usb.agent[23381]:      libgphoto2: loaded successfully
+Try your luck with the autodetection and you should see this:
+  $> gphoto2 --auto-detect
+  Model                          Port
+  ----------------------------------------------------------
+  Canon PowerShot S2 IS (PTP mode) usb:
+  Canon PowerShot S2 IS (PTP mode) usb:001,012
+==== with udev 084 ====
+The hotplug method mentioned above doesn't work anymore with a recent kernel and a matching udev version (udev replaces hotplug). I had to use the following rule placed in ''/etc/udev/rules.d/10-local.rules'':
+<code>
+BUS="usb", SYSFS{idVendor}="04a9", SYSFS{idProduct}="30f0", GROUP="camera", MODE="0660", \
+  PROGRAM="/bin/sh -c 'K=%k; K=$${K#usbdev}; printf bus/usb/%%03i/%%03i $${K%%%%.*} $${K#*.}'", \
+  NAME="%c", RUN="/bin/sh -c 'chgrp camera /proc/%c && chmod 0660 /proc/%c'"
+</code>
+The rest is the same, add your user to the ''camera'' group and use ''gphoto2 --auto-detect --list-files'' to test.
+===== Getting images from the Camera =====
+You could of course use some GUI like the gtkam utility but I prefer a little script to do what I want. It fetches all available images to the current directory, autorotates them lossless using [[man>exiftran]] and deletes all images from the camera.
+<code bash>
+#!/bin/sh
+#The cameras image folder. use '--list-files' to get the name of the image folder
+FOLDER='/store_00010001/'
+echo "fetching all files..."
+gphoto2 --auto-detect --get-all-files --folder $FOLDER
+echo "Autorotating images..."
+exiftran -ai *.JPG
+echo
+echo "Deleting images from camera (Abort now if not wanted)"
+echo -n "Hit enter to continue "
+read foo
+gphoto2 --auto-detect --delete-all-files --recurse --folder $FOLDER
+</code>
+===== lsusb -v Output =====
+<code>
+Bus 001 Device 007: ID 04a9:30f0 Canon, Inc.
+Device Descriptor:
+  bLength                18
+  bDescriptorType         1
+  bcdUSB               2.00
+  bDeviceClass            0 (Defined at Interface level)
+  bDeviceSubClass         0
+  bDeviceProtocol         0
+  bMaxPacketSize0        64
+  idVendor           0x04a9 Canon, Inc.
+  idProduct          0x30f0
+  bcdDevice            0.02
+  iManufacturer           1 Canon Inc.
+  iProduct                2 Canon Digital Camera
+  iSerial                 0
+  bNumConfigurations      1
+  Configuration Descriptor:
+    bLength                 9
+    bDescriptorType         2
+    wTotalLength           39
+    bNumInterfaces          1
+    bConfigurationValue     1
+    iConfiguration          0
+    bmAttributes         0xc0
+      Self Powered
+    MaxPower                2mA
+    Interface Descriptor:
+      bLength                 9
+      bDescriptorType         4
+      bInterfaceNumber        0
+      bAlternateSetting       0
+      bNumEndpoints           3
+      bInterfaceClass         6 Imaging
+      bInterfaceSubClass      1 Still Image Capture
+      bInterfaceProtocol      1 Picture Transfer Protocol (PIMA 15470)
+      iInterface              0
+      Endpoint Descriptor:
+        bLength                 7
+        bDescriptorType         5
+        bEndpointAddress     0x81  EP 1 IN
+        bmAttributes            2
+          Transfer Type            Bulk
+          Synch Type               None
+          Usage Type               Data
+        wMaxPacketSize     0x0200  1x 512 bytes
+        bInterval               0
+      Endpoint Descriptor:
+        bLength                 7
+        bDescriptorType         5
+        bEndpointAddress     0x02  EP 2 OUT
+        bmAttributes            2
+          Transfer Type            Bulk
+          Synch Type               None
+          Usage Type               Data
+        wMaxPacketSize     0x0200  1x 512 bytes
+        bInterval               0
+      Endpoint Descriptor:
+        bLength                 7
+        bDescriptorType         5
+        bEndpointAddress     0x83  EP 3 IN
+        bmAttributes            3
+          Transfer Type            Interrupt
+          Synch Type               None
+          Usage Type               Data
+        wMaxPacketSize     0x0008  1x 8 bytes
+        bInterval              10
+Device Qualifier (for other device speed):
+  bLength                10
+  bDescriptorType         6
+  bcdUSB               2.00
+  bDeviceClass            0 (Defined at Interface level)
+  bDeviceSubClass         0
+  bDeviceProtocol         0
+  bMaxPacketSize0        64
+  bNumConfigurations      1
+</code>