problem using Canon SD400 on Debian Sarge

[Sayantan Sur <sayantan.sur@gmail.com>]

Hello,

I recently got a Canon SD400 camera. I have been trying to get it to
work with my laptop which runs Debian Sarge but no luck yet :-( I am
running kernel version 2.6.12-1-686. I have usb storage working fine.
I can use USB hard disks and other kinds of memory sticks by mounting
them onto /dev/sda1 ... Coming to the peculiar problem which I face
with the camera ...

As soon as I plug the camera in, for a brief period it is reported by
`lsusb' (from usbutils package). But after a few seconds, the device
dissappears from lsusb!! However, it is always to be found in
/proc/bus/usb/devices.

Any clue as to why this behavior? This camera works with SuSe (I think
10.someversion), but it should work on Debian too!!

Thanks for all your help,
Sayantan.

=============================
Debug information:

1. lsusb -v   # For the very short period of time the camera is
reported by lsusb

Bus 001 Device 009: ID 04a9:310e 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          0x310e
  bcdDevice            0.02
  iManufacturer           1
  iProduct                2
  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     0x0040  1x 64 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     0x0040  1x 64 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              32
can't get device qualifier: Operation not permitted
can't get debug descriptor: Operation not permitted

2. cat /proc/bus/usb/devices # Device info for the camera

T:  Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 10 Spd=12  MxCh= 0
D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
P:  Vendor=04a9 ProdID=310e Rev= 0.02
S:  Manufacturer=Canon Inc.
S:  Product=Canon Digital Camera
C:* #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr=  2mA
I:  If#= 0 Alt= 0 #EPs= 3 Cls=06(still) Sub=01 Prot=01 Driver=(none)
E:  Ad=81(I) Atr=02(Bulk) MxPS=  64 Ivl=0ms
E:  Ad=02(O) Atr=02(Bulk) MxPS=  64 Ivl=0ms
E:  Ad=83(I) Atr=03(Int.) MxPS=   8 Ivl=32ms

3. tail -f /var/log/messages  # When camera is inserted and turned on

 Oct  3 21:50:39 localhost kernel: usb 1-1: new full speed USB device
using uhci_hcd and address 10
Oct  3 21:50:40 localhost usb.agent[7405]:      libgphoto2: loaded successfully


--
http://www.cse.ohio-state.edu/~surs