Re: problem using Canon SD400 on Debian Sarge
On 10/3/05, Henrique de Moraes Holschuh <hmh@debian.org> wrote:
> On Mon, 03 Oct 2005, Sayantan Sur wrote:
> > 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.
>
> Try lsusb as root. If it shows up, it is just braindamage happening, with a
> race condition on USB plugin just to make sure you know that whomever is
> responsible for it really needs to get his act together.
>
> Track down whatever is screwing up with /proc/bus/usb permissions and you
> will have the culprit.
Thanks a lot! This worked. There is definitely brain damage happening
;-) Apparently, if I run lsusb as root, everything is just fine.
However, as Tom else pointed out on the list, it is not accessible as
a Mass Storage Device. Now, if I use gphoto2 as root, then everything
is just hunky-dory.
>
> > Oct 3 21:50:40 localhost usb.agent[7405]: libgphoto2: loaded successfully
>
> Ah. This means hotplug is probably the one to blame for the race condition.
>
Looks like it. Can you tell me what should I do to accurately describe
(collect info) the race condition to the developers of gphoto2/usb
drivers?
Thanks,
Sayantan.
> --
> "One disk to rule them all, One disk to find them. One disk to bring
> them all and in the darkness grind them. In the Land of Redmond
> where the shadows lie." -- The Silicon Valley Tarot
> Henrique Holschuh
>
>
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--
http://www.cse.ohio-state.edu/~surs
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