[sane-devel] Testing on Canon MF6580PL

Nicolas Martin nicolas0martin at gmail.com
Thu Jul 15 17:47:41 UTC 2010


I took a look at the process list you sent, but difficult for me to tell
which one is involved with the usb port used by the Pixma device, as I
don't know anything about 50% of them, and the names do not help too
much to know what they are used for. 

Unfortunately, no other idea for the moment, on how to locate this
process, which seems to lock the usb port.

Nicolas

Le mercredi 14 juillet 2010 à 09:13 +0000, twain43 at hotmail.com a écrit :
> Morning,
> here are some results, along with the steps I took to obtain them:
> 1. Uninstalled the canon printer from System Preferences, trashed the
> drivers and killed the "UFR II Backgrounder" service;
> 2. Make uninstalled all frontends and backends (I'm keeping the
> source, just in case);
> 3. Rebooted;
> 4. Pulled down yesterday's git snapshot, added the "ugly pixma patch",
> modded the NDEBUG statements for pixma files;
> 5. Compiled and installed both frontends and backends;
> 6. Ran Activity Monitor and kept it on the background;
> 7. Ran scanimage in Terminal as superuser, while using Activity
> Monitor to save the list of running processes and daemons at the
> moment of the test.
> 
> Not posting the usual pixma and all-export logs, since they read as
> usual.
> Instead, I'm attaching Activity Monitor's log: maybe you'll spot
> something more than I did....AFAICS, there's nothing wrong: the only
> two suspicious processes are TWAINBridge and Image Capture Extension.
> The first one appears as soon as I connect the printer to the USB, and
> can't be killed, so I'm guessing it must be OS-related. I killed the
> second one and rerun the scantest, but got no different log results.
> 
> Hope you can spot something more out of it.
> 
> Twain28
> 
> 
> ______________________________________________________________________
> From: twain43 at hotmail.com
> To: nicolas0martin at gmail.com
> Date: Tue, 13 Jul 2010 14:32:44 +0000
> CC: sane-devel at lists.alioth.debian.org
> Subject: Re: [sane-devel] Testing on Canon MF6580PL
> 
> I'm not a Mac expert myself, but I'll poke around things and see what
> I can do....
> 
> Twain28
> 
> 
> ______________________________________________________________________
> Date: Tue, 13 Jul 2010 10:35:51 +0200
> Subject: Re: [sane-devel] Testing on Canon MF6580PL
> From: nicolas0martin at gmail.com
> To: twain43 at hotmail.com
> CC: sane-devel at lists.alioth.debian.org
> 
> The "process" here under is probably not an application, but runs in
> background, it may be a printing daemon or service started after boot,
> which locks access to the usb port. 
> I really know nothing about Mac OS X, to help you find it, maybe stop
> a printing service would help.
>  
> Nicolas
> 
> 
> 2010/7/13 <twain43 at hotmail.com>
>         I'm running the command from terminal at system boot, so there
>         really should not be anything else open....is there some way
>         to check this, anyway, so that I might be sure of it?
>         Thank you for your patience....
>         
>         Twain28
>         
>         
>         ______________________________________________________________
>         Date: Mon, 12 Jul 2010 18:45:03 +0200 
>         
>         Subject: Re: [sane-devel] Testing on Canon MF6580PL
>         From: nicolas0martin at gmail.com
>         To: twain43 at hotmail.com
>         
>         CC: sane-devel at lists.alioth.debian.org 
>         
>         
>         
>         Well, not exactly something new, the 2 logs are somehow
>         equivalent, but one gives a little bit more details:
>         [pixma] en1 is not a valid IPv4 interface, skipping...
>         [pixma] en1 is IPv4 capable, sending broadcast..
>         [pixma] scanner discovery finished...
>         [pixma] pixma_open(): Canon imageClass MF6500
>         [sanei_usb] sanei_usb_open: trying to open device
>         `libusb:005:002-04a9-2686-00-00'
>         usb_os_open: 04a9:2686
>         usb_os_open(USBDeviceOpenSeize): another process has device
>         opened for exclusive access
>         usb_set_configuration: called for config 1
>         USB error: usb_set_configuration(SetConfiguration): device not
>         opened for exclusive access
>         [sanei_usb] sanei_usb_open: libusb complained:
>         usb_set_configuration(SetConfiguration): device not opened for
>         exclusive access
>         usb_os_close: 04a9:2686
>         [pixma] pixma_connect() failed EINVAL
>         [pixma] pixma_open() failed EINVAL
>         [pixma] pixma_close(): Canon imageClass MF6500
>         scanimage: open of device pixma:04A92686 failed: Invalid
>         argument
>         
>         And I think we're back to a few messages ago in this thread,
>         so first, could you locate this other process (maybe
>         printer ?) which locks the usb device, and stop it ? 
>          
>         Nicolas
>         
>         
>         2010/7/12 <twain43 at hotmail.com>
>                 Ditto: here are the new logs. 
>                 Something new sprouted out, at their very end....hope
>                 it's useful. 
>                 
>                 
>                 Twain28
>                 
>                 
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> 
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