need help mounting usb camera

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Author: Alex Dean
Date:  
To: Main PLUG discussion list
Subject: need help mounting usb camera
Xubuntu 7.10 on a Thinkpad T40. Trying to connect a Canon Powershot A40
camera.

I'm plugging in the camera, and it's not mounting automatically. I'm
not sure what steps to take to get it working. I'm not familiar with
all the steps to get from a USB device to a filesystem mount.

'lsusb' makes it appear that the system knows the camera is there. I
see device files in /dev which seem to correspond to the camera. Same
information shows up in dmesg. I'm used to seeing a device as something
like /dev/sda, and I can mount that. I'm not sure how to do that with
the multiple USB /dev files I'm seeing. (There are 4 files in /dev
which appear related to the camera, /dev/usbdev2.10*, see 'ls' output
below.)

The camera powered off a few times while I was poking about, and dmesg
shows it was re-detected every time I powered it back on.

My iPod mounts automatically when plugged in, with either the Apple or
Rockbox firmware. Is there some other module, driver, or daemon I need
to install to get the same behavior from my camera?

thanks,
alex

alex@moosedrool:~$ ls /dev/usb*
/dev/usb1 /dev/usbdev1.1_ep00 /dev/usbdev2.10_ep81 /dev/usbdev3.1_ep00
/dev/usb2 /dev/usbdev1.1_ep81 /dev/usbdev2.10_ep83 /dev/usbdev3.1_ep81
/dev/usb3 /dev/usbdev2.10_ep00 /dev/usbdev2.1_ep00 /dev/usbdev4.1_ep00
/dev/usb4 /dev/usbdev2.10_ep02 /dev/usbdev2.1_ep81 /dev/usbdev4.1_ep81

alex@moosedrool:~$ lsusb
Bus 004 Device 001: ID 0000:0000
Bus 003 Device 001: ID 0000:0000
Bus 002 Device 010: ID 04a9:3058 Canon, Inc. PowerShot A40
Bus 002 Device 001: ID 0000:0000
Bus 001 Device 001: ID 0000:0000

alex@moosedrool:~$ dmesg | tail
[44597.812000] usb 2-2: configuration #1 chosen from 1 choice
[44897.276000] usb 2-2: USB disconnect, address 7
[44939.524000] usb 2-2: new full speed USB device using uhci_hcd and
address 8
[44939.684000] usb 2-2: configuration #1 chosen from 1 choice
[45028.984000] usb 2-2: USB disconnect, address 8
[45051.648000] usb 2-2: new full speed USB device using uhci_hcd and
address 9
[45051.808000] usb 2-2: configuration #1 chosen from 1 choice
[45351.284000] usb 2-2: USB disconnect, address 9
[45465.160000] usb 2-2: new full speed USB device using uhci_hcd and
address 10
[45465.320000] usb 2-2: configuration #1 chosen from 1 choice

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