fluid-work IRC Logs-2010-07-13

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Last updated: Jul 13, 2010Version comment
5 min read

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[09:46:10 CDT(-0500)] <jhung-alt> colinclark: Good morning. I have some genpdf results for you.
[09:46:20 CDT(-0500)] <colinclark> ok, cool
[09:46:24 CDT(-0500)] <jhung-alt> http://wiki.fluidproject.org/display/fluid/Decapod+0.4+-+Testing+%28jhung%29
[09:47:48 CDT(-0500)] <colinclark> Where'd the images come from?
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[09:48:27 CDT(-0500)] <colinclark> And this is an image PDF, is that right?
[09:49:18 CDT(-0500)] <jhung-alt> I created these images from my camera and some post processing manually in photoshop.
[09:49:24 CDT(-0500)] <jhung-alt> Yes, an image PDF
[09:49:29 CDT(-0500)] <colinclark> cool
[09:49:35 CDT(-0500)] <colinclark> So, how did you post process the images?
[09:49:43 CDT(-0500)] <colinclark> Can you make a note of each of the steps you did?
[09:49:55 CDT(-0500)] <jhung-alt> Ok. I'll post those as well.
[09:50:00 CDT(-0500)] <colinclark> And I'm curious to see what the output from the raw images is--unbinarized in particular
[09:50:09 CDT(-0500)] <colinclark> Nice work, jhung-alt
[09:50:12 CDT(-0500)] <colinclark> this is really good
[09:50:46 CDT(-0500)] <jhung-alt> Colinclark: I just tried the colour versions of these photos and got an.
[09:50:58 CDT(-0500)] <jhung-alt> I'll do some more variations and post the results.
[09:51:03 CDT(-0500)] <colinclark> ok
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[13:16:44 CDT(-0500)] <jhung-alt> jamon, got a minute for a linux question?
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[13:20:36 CDT(-0500)] <jamon> what's up jhung-alt?
[13:21:15 CDT(-0500)] <jhung-alt> When attaching a digital camera with a memory card installed. Where does the disk get mounted in the local file system?
[13:21:32 CDT(-0500)] <jamon> jhung-alt: depends on if you have it automounting or not
[13:21:47 CDT(-0500)] <jamon> usually /media/
[13:21:56 CDT(-0500)] <jhung-alt> It's automounted.
[13:22:07 CDT(-0500)] <jhung-alt> If it isn't auto-mounted?
[13:22:18 CDT(-0500)] <jhung-alt> Would it be different?
[13:22:21 CDT(-0500)] <jamon> if not automounted, it goes where you tell it (smile)
[13:22:59 CDT(-0500)] <jamon> jhung-alt: if you assign a label e.g. a name to the card, it would be /media/FOO where FOO is the fat32 label
[13:23:06 CDT(-0500)] <jamon> handy to do that
[13:23:22 CDT(-0500)] <jamon> you might also think about labelling the cards depending on which left/right camera they go into?
[13:24:04 CDT(-0500)] <jhung-alt> yeah. With a memory card, we can do different things to id cameras.
[13:24:22 CDT(-0500)] <jhung-alt> Asking users to label their cards is a stretch, so it'll be better if we wrote something to the disk ourselves.
[13:24:34 CDT(-0500)] <jamon> right
[13:25:26 CDT(-0500)] <jhung-alt> Hmmm. I'm looking in /media and the disk isn't showing up.
[13:28:24 CDT(-0500)] <jhung-alt> and yet I'm able to browse the contents using the file manager.
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[14:31:22 CDT(-0500)] <jamon> jhung-alt: hey, was working with armin
[14:31:48 CDT(-0500)] <jamon> jhung-alt: odd, type "mount" in a terminal and you should see the mount point hen
[14:31:52 CDT(-0500)] <jamon> then
[14:41:56 CDT(-0500)] <jhung-alt> I checked and the memory card does not seem to be mounted. There's no difference between output before and during camera connection.
[14:44:36 CDT(-0500)] <jamon> jhung-alt: if it isn't mounted, check "dmesg"
[14:44:43 CDT(-0500)] <jamon> (same thing on osx)
[14:45:17 CDT(-0500)] <jamon> jhung-alt: that will show the device name you can use e.g. /dev/sdb1
[14:53:23 CDT(-0500)] <jhung-alt> jamon, here's what I get
[14:53:24 CDT(-0500)] <jhung-alt> "usb 1-3: new high speed USB device using ehci_hcd and address 15"
[14:53:57 CDT(-0500)] <jamon> jhung-alt: nothing after that?
[14:54:17 CDT(-0500)] <jhung-alt> jamon: "usb 1-3: configuration #1 chosen from 1 choice"
[14:55:25 CDT(-0500)] <jamon> jhung-alt: anything there that starts with "scsi" or "sd"? should be after the usb lines
[14:55:40 CDT(-0500)] <jamon> e.g. (hope I don't get klined for this):
[14:55:41 CDT(-0500)] <jamon> [58953.482531] scsi 6:0:0:0: Direct-Access USB Flash Memory PMAP PQ: 0 ANSI: 0 CCS
[14:55:44 CDT(-0500)] <jamon> [58953.484615] sd 6:0:0:0: Attached scsi generic sg3 type 0
[14:55:47 CDT(-0500)] <jamon> [58953.712414] sd 6:0:0:0: [sdc] 7823360 512-byte logical blocks: (4.00 GB/3.73 GiB)
[14:56:10 CDT(-0500)] <jhung-alt> nope. I don't get anything like that following.
[14:56:43 CDT(-0500)] <jamon> jhung-alt: interesting, camera is set to playback mode right?
[14:56:45 CDT(-0500)] <jhung-alt> If I attach a flash drive or a card to the reader, I get those kinds of printouts. But not when attaching a camera.
[14:56:54 CDT(-0500)] <jhung-alt> yep
[14:57:23 CDT(-0500)] <jamon> gphoto will connect to the usb camera though right?
[14:59:20 CDT(-0500)] <jhung-alt> yes. Gphoto can see it. I haven't tried capturing through it though (different camera than my usual).
[14:59:45 CDT(-0500)] <jhung-alt> shows up as ptp camera on usb:001,016
[14:59:55 CDT(-0500)] <jamon> that sounds to me jhung-alt like it is a camera specific issue then where it doesn't export its internal storage as a block device
[15:00:12 CDT(-0500)] <jamon> yeah ptp, that's a different protocol, it won't show up as a filesystem jhung-alt (sad)
[15:00:27 CDT(-0500)] <jamon> this is a point and shoot right? guessing?
[15:00:58 CDT(-0500)] <jhung-alt> jamon: yep. But most cameras we're testing are PTP. in fact gphoto2 sometimes only works in PTP.
[15:01:44 CDT(-0500)] <jamon> jhung-alt: right, so that means a) ptp support for that camera in gphoto, or b) camera needs to show up as a block device via usb or c) user has to remove card
[15:03:17 CDT(-0500)] <jhung-alt> jamon: yeah.
[15:03:35 CDT(-0500)] <jhung-alt> jamon: so I guess we should investigate how to write contents to a camera over PTP.
[15:04:48 CDT(-0500)] <jamon> jhung-alt: i think i read about someone who wrote a filesystem driver for ptp
[15:05:10 CDT(-0500)] <jamon> some way to mount treating it like a filesystem using libptp
[15:05:26 CDT(-0500)] <jamon> it was a long time ago with my first point and shoot digital (smile)
[15:05:37 CDT(-0500)] <jhung-alt> jamon: I'll look it up. I think gphotofs may do this as well, but I haven't had a chance to play with it yet.
[15:06:24 CDT(-0500)] <jamon> interested in what you find jhung-alt, let me know
[15:06:40 CDT(-0500)] <jhung-alt> jamon: will do. Thanks for the help!
[15:07:15 CDT(-0500)] <jamon> jameswy: pass on design-commits is changed (wink)
[15:07:45 CDT(-0500)] <jameswy> jamon: thanks!
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