Re: camera revisited

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On Monday 17 May 2004 01:38, Chadley Wilson wrote:
>On Fri, 2004-05-14 at 12:14, Gene Heskett wrote:
>> On Friday 14 May 2004 04:46, Andy Green wrote:
>> >-----BEGIN PGP SIGNED MESSAGE-----
>> >Hash: SHA1
>> >
>> >On Friday 14 May 2004 05:42, Gene Heskett wrote:
>> >> Previously, the module usb_storage, built into the kernel,
>> >> seemed to handle it well enough that I could at least "mount -t
>> >> vfat /dev/sda1 /mnt/camera" and download the pix (provided I
>> >> deleted them from the camera in the reverse order of their
>> >> being taken that is)
>> >
>> >I experienced something similar yesterday on a machine here: I
>> > had to fall back to kernel -322 in order to get usb storage
>> > working again.
>>
>> Thats a 2.4 series kernel, right?  I'm running 2.6.5-mm6 or
>> higher.
>
>Just my 2c, I have a sony 3.2 cybershot p-52. When I upgraded my
> kernel from 2.4 to 2.6 the camera no longer loaded as removable
> storage. The reason for this in my case was because you need to set
> the camera to PTP mode and then use gtkam, It is a bit wierd but
> this applies both in MDK10 and FC2. I just assume some where
> some-one has planned it this way.
>Anybody?
>--
>Chadley - Linux Rocks
>Welcome to my world.

I looked at gtkam, but AFAIK, this Olympus C-3020Z wouldn't know what 
PTP was if it was bitten by it.  Even its vfat is buggy in that if 
the camera is full, one MUST copy out and remove the pix in reverse 
order of their being taken, else the file structure in the card 
becomes broken and the card becomes read-only.  The bug is that if 
the first few pix have bene copied out and deleted, the next dir 
listing stops at the end of a sector containing all deleted entries!
So you have to do your housekeeping from the far end of the directory 
file back toward the start.

However, once I had restored the availability of sd_mod in the 
kernels .config, and rebuilt it yet again, its all working as before 
with a "mount -t vfat /dev/sda1 /mnt/camera".  This is kernel 
2.6.6-mm2 with the bk-input.patch backed out.  Uptime 2d+5 hrs, 
stable so far.

I didn't even get to the point in gtkam's config to even realise I had 
to modify the cameras protocol.  I just tried it again, and the 
message is "could not initialize camera".  As that things a battery 
hog, I just shut it back off.  FWIW, I don't recall the PTP mode 
being mentioned in the rather thick manual accompanying it.

Thanks for the reply, and maybe I've furnished some clues to you as to 
howto do it.  usb-storage apparently needs the scsi disk support 
available in the kernel's build or in the /lib/modules/kernel.version 
tree.

Now however, I have another problem.  automount, since its now 
running, has an exclusive lock on the /misc directory, and thats 
hiding about 3 gigs worth of data I have in various subdirs of /misc 
from me.  Is this its normal behaviour?  A service autofs stop 
restores my access to that data.

Does hotplug require autofs to be running?

-- 
Cheers, Gene
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
99.22% setiathome rank, not too shabby for a WV hillbilly
Yahoo.com attorneys please note, additions to this message
by Gene Heskett are:
Copyright 2004 by Maurice Eugene Heskett, all rights reserved.



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