Bob Hemus, Read This --> Fwd: Re: Problems with usb and digital camera

[Kurt Wall]

Bob,

This *might* explain the problems you're having with your
PowerShot A40. Note that the solutions (appears) to be
upgrading to a newer version of gphoto.

Kurt

----------  Forwarded Message  ----------

Subject: Re: Problems with usb and digital camera
Date: Friday 10 June 2005 06:04
From: Marcus Meissner <meissner at suse.de>
To: Greg KH <greg at kroah.com>, linux-kernel at vger.kernel.org

In article <20050610085033.GA16936 at kroah.com.suse.lists.linux.kernel> 
you wrote:
>> I have a Canon Powershot A70 and it used to work nicely with linux
>> and gnome. But now it has stopped working.
>>
>> When I plug the camera, gthumb pops and try to import photos. But I
>> get a window with this message:
>>
>>
>> Jun  6 23:43:04 werewolf kernel: usb 5-2: new full speed USB device
>> using uhci_hcd and address 6 Jun  6 23:45:38 werewolf kernel: usb
>> 5-2: usbfs: interface 0 claimed by usbfs while 'gthumb' sets config
>> #1
>
> That looks fine.
>
>> I have now 2.6.12-rc6-mm1. My USB pendrive works nicely.
>>
>> Are you aware of any strange behaviour of USB in this kernel ?
>
> Nope :)

This was a bug (?) in libgphoto2 which is fixed with 2.1.6rc2 or
later.

Please download libgphoto2-2.1.6rc2 from sf.net/projects/gphoto
and it will be fixed.

The technical problem was that that the libusb call
usb_set_configuration() could only be called with the USB interface
released via usb_release_interface() before.

I do not know why this is necessary, but we fixed it neithertheless.

Ciao, Marcus
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel"
 in the body of a message to majordomo at vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

-------------------------------------------------------