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Morning,<br>here are some results, along with the steps I took to obtain them:<br>1. Uninstalled the canon printer from System Preferences, trashed the drivers and killed the "UFR II Backgrounder" service;<br>2. Make uninstalled all frontends and backends (I'm keeping the source, just in case);<br>3. Rebooted;<br>4. Pulled down yesterday's git snapshot, added the "ugly pixma patch", modded the NDEBUG statements for pixma files;<br>5. Compiled and installed both frontends and backends;<br>6. Ran Activity Monitor and kept it on the background;<br>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.<br><br>Not posting the usual pixma and all-export logs, since they read as
usual.<br>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.<br><br>Hope you can spot something more out of it.<br><br>Twain28<br><br><hr id="stopSpelling">From: twain43@hotmail.com<br>To: nicolas0martin@gmail.com<br>Date: Tue, 13 Jul 2010 14:32:44 +0000<br>CC: sane-devel@lists.alioth.debian.org<br>Subject: Re: [sane-devel] Testing on Canon MF6580PL<br><br>
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I'm not a Mac expert myself, but I'll poke around things and see what I can do....<br><br>Twain28<br><br><hr id="ecxstopSpelling">Date: Tue, 13 Jul 2010 10:35:51 +0200<br>Subject: Re: [sane-devel] Testing on Canon MF6580PL<br>From: nicolas0martin@gmail.com<br>To: twain43@hotmail.com<br>CC: sane-devel@lists.alioth.debian.org<br><br><div>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. </div>
<div>I really know nothing about Mac OS X, to help you find it, maybe stop a printing service would help.</div>
<div> </div>
<div>Nicolas<br><br></div>
<div class="ecxecxgmail_quote">2010/7/13 <span dir="ltr"><<a href="mailto:twain43@hotmail.com">twain43@hotmail.com</a>></span><br>
<blockquote class="ecxecxgmail_quote" style="padding-left: 1ex;">
<div>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?<br>Thank you for your patience....<br>
<br>Twain28<br><br>
<hr>
Date: Mon, 12 Jul 2010 18:45:03 +0200
<div class="ecxecxim"><br>Subject: Re: [sane-devel] Testing on Canon MF6580PL<br>From: <a href="mailto:nicolas0martin@gmail.com">nicolas0martin@gmail.com</a><br>To: <a href="mailto:twain43@hotmail.com">twain43@hotmail.com</a><br>
</div>CC: <a href="mailto:sane-devel@lists.alioth.debian.org">sane-devel@lists.alioth.debian.org</a>
<div>
<div></div>
<div class="h5"><br><br>
<div>Well, not exactly something new, the 2 logs are somehow equivalent, but one gives a little bit more details:</div><font size="2">[pixma] en1 is not a valid IPv4 interface, skipping...<br>[pixma] en1 is IPv4 capable, sending broadcast..<br>
[pixma] scanner discovery finished...<br>[pixma] pixma_open(): Canon imageClass MF6500<br>[sanei_usb] sanei_usb_open: trying to open device `libusb:005:002-04a9-2686-00-00'<br>usb_os_open: 04a9:2686<br>usb_os_open(USBDeviceOpenSeize): <strong><font color="#cc0000">another process has device opened for exclusive access</font></strong><br>
usb_set_configuration: called for config 1<br>USB error: usb_set_configuration(SetConfiguration): device not opened for exclusive access<br>[sanei_usb] sanei_usb_open: libusb complained: usb_set_configuration(SetConfiguration): device not opened for exclusive access<br>
usb_os_close: 04a9:2686<br>[pixma] pixma_connect() failed EINVAL<br>[pixma] pixma_open() failed EINVAL<br>[pixma] pixma_close(): Canon imageClass MF6500<br>scanimage: open of device pixma:04A92686 failed: Invalid argument<br>
<div></div></font>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 ?
<div> </div>
<div>Nicolas<br><br></div>
<div>2010/7/12 <span dir="ltr"><<a href="mailto:twain43@hotmail.com">twain43@hotmail.com</a>></span><br>
<blockquote style="padding-left: 1ex;">
<div>Ditto: here are the new logs. <br>Something new sprouted out, at their very end....hope it's useful.
<div><br><br>Twain28<br><br>
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