Hi, As you can see on the log file, the backend doesn't start a new scan after page 3 has been scanned. Due to this the scanner cannot handle the scan commands and a timeout raises.
I prepared a patch with a new adf state variable. This patch is based on the latest git sources and patch1. Please test the patch and create a new log file. Cheers, Rolf Am 17.03.2014 21:03, schrieb Matthias Peter Walther: > Hello All, > > I had some trouble to apply the new patch, but Rolf helped me to fix it. > > Here comes the result with git + patch pixma_mp150.c.patch1, 3 pages in ADF. > > It works correct, but the timeout at the end acts weird. In the log it > counts down 8 7 6...but between each line it pauses around 15-20 > seconds. This scan took ages! > > The log comes as attachment. > > Bye > Matthias > > Am 15.03.2014 20:16, schrieb Rolf Bensch: >> Hi All, >> >> Now we have Matthias on board with his MX375. >> >> Please don't use the old patches. I started changing code in pixma.c >> where we might get problems with other scanners, e.g. with the >> Imageclass sub-backend. So, we should find a fix which affects >> pixma_mp150.c only. >> >> We should start at the beginning. Please use attached patch with latest >> code from git. I added some additional debug outputs to show the status >> of adf scanning. Please create a debug file with 'export >> SANE_DEBUG_PIXMA=4'. >> >> I also added TODO comments as hints for possible fixes. >> >> Cheers, >> Rolf >> >> >> >> Am 14.03.2014 22:41, schrieb Matthias Peter Walther: >>> Hallo Rolf, >>> >>> thanks for your quick reply. I'm from Germany too, by the way. But to >>> keep this conformed, I'm gonna answer you in english. >>> >>> If I understood your posts correctly, you want me to use patch 3+4. >>> Patch 5 is only for the feature to initiate a scan from the device. >>> Which is nice, but I will look into that later. >>> >>> So I pulled my git-sane-backend-repo and patched it: >>> >>> mpw at Server0:~/sane$ patch -p1 < attachment-0003.bin >>> patching file sane-backends/backend/pixma.c >>> mpw at Server0:~/sane$ patch -p1 < attachment-0004.bin >>> patching file sane-backends/backend/pixma_mp150.c >>> Hunk #2 succeeded at 1397 (offset -12 lines). >>> Hunk #3 succeeded at 1439 (offset -12 lines). >>> Hunk #4 succeeded at 1493 (offset -12 lines). >>> Hunk #5 succeeded at 1560 (offset -12 lines). >>> Hunk #6 succeeded at 1568 (offset -12 lines). >>> Hunk #7 succeeded at 1580 (offset -12 lines). >>> >>> I think the offset is related to the age of the patch. >>> >>> After installing, I check the ldconfig: >>> >>> $ sudo ldconfig -v | grep libsane >>> /sbin/ldconfig.real: Kann ?stat()? f?r ?/lib/i686-linux-gnu? nicht >>> aufrufen: Datei oder Verzeichnis nicht gefunden >>> /sbin/ldconfig.real: Kann ?stat()? f?r ?/usr/lib/i686-linux-gnu? nicht >>> aufrufen: Datei oder Verzeichnis nicht gefunden >>> /sbin/ldconfig.real: Pfad ?/usr/local/lib? mehrfach angegeben >>> /sbin/ldconfig.real: Pfad ?/lib/x86_64-linux-gnu? mehrfach angegeben >>> /sbin/ldconfig.real: Pfad ?/usr/lib/x86_64-linux-gnu? mehrfach angegeben >>> libsane.so.1 -> libsane.so.1.0.25 >>> libsane.so.1 -> libsane.so.1.0.22 >>> /sbin/ldconfig.real: Es ist nicht m?glich, den Status (stat()) der Datei >>> /usr/lib/x86_64-linux-gnu/libsoftokn3.so zu lesen: Datei oder >>> Verzeichnis nicht gefunden >>> libsane.so.1 -> libsane.so.1.0.22 >>> libsane-canon_mfp.so.1 -> libsane-canon_mfp.so.1.0.9 >>> >>> This looks good, I think I had 1.0.24 from last october before. Okay, I >>> tried a scan then: >>> >>> $ scanadf >>> scanadf: sane_read: Error during device I/O >>> Error during device I/O >>> Scanned 0 pages >>> $ >>> >>> This did not work before, either. Maybe my sane-frontend is too old? I >>> have the original one from Ubuntu 12.04.4. >>> $ scanadf --version >>> scanadf (sane-frontends) 1.0.14 >>> >>> Next try, scanimage: >>> $ scanimage --source "Automatic Document Feeder" -p --batch >>> Scanning -1 pages, incrementing by 1, numbering from 1 >>> Scanning page 1 >>> Scanned page 1. (scanner status = 5) >>> Scanning page 2 >>> scanimage: sane_read: Document feeder out of documents >>> Scanned page 2. (scanner status = 7) >>> mpw at Server0:~/sane$ ls >>> attachment-0003.bin attachment-0004.bin out1.pnm sane-backends >>> >>> This is a first success. But as you can see in the output of ls, it >>> stores only the first page, the second is lost. Or is there something >>> wrong with my scanimage-command? >>> >>> BTW: Can you please change "Automatic Document Feeder" to simply "ADF", >>> that would be much more comfortable to type :) >>> >>> So thanks for your patch, I think it's almost perfect. I just need to >>> store the 2nd page. >>> >>> Please let me know, if you need more detailed debugging output. Will you >>> commit this two patches to the git repository? >>> >>> Gr??e aus M?nster >>> Matthias >>> >>> Am 14.03.2014 19:31, schrieb Rolf Bensch: >>>> Hi Matthias, >>>> >>>> Please read this thread: >>>> http://lists.alioth.debian.org/pipermail/sane-devel/2014-March/032138.html. >>>> >>>> Cheers, >>>> Rolf >>>> >>>> >>>> Am 12.03.2014 21:11, schrieb Matthias Peter Walther: >>>>> Hello, >>>>> >>>>> I'm new to this, but I'm gonna try my luck. I own a Canaon MX375 >>>>> all-in-one. The PIXMA-backend has this annoying adf-empty-bug. >>>>> >>>>> Is there any information I could provice to help to fix this? >>>>> >>>>> The binary driver from canon.uk works with their gui-frontend only and >>>>> I'd like to get it working on a headless system. >>>>> >>>>> Thanks for any comments. >>>>> >>>>> Bye >>>>> Matthias Walther >>>>> >>>>> >>> > -------------- next part -------------- --- ./pixma_mp150.c 2014-03-17 20:54:01.000000000 +0100 +++ ../sane-backends/backend/pixma_mp150.c 2014-03-17 21:21:34.000000000 +0100 @@ -284,6 +284,7 @@ unsigned stripe_shift; uint8_t tpu_datalen; uint8_t tpu_data[0x40]; + uint8_t adf_state; /* handle adf scanning */ } mp150_t; /* @@ -454,6 +455,7 @@ abort_session (pixma_t * s) { mp150_t *mp = (mp150_t *) s->subdriver; + mp->adf_state = state_idle; /* reset adf scanning */ return pixma_exec_short_cmd (s, &mp->cb, cmd_abort_session); } @@ -1190,6 +1192,9 @@ /* TPU info data setup */ mp->tpu_datalen = 0; + /* adf scanning */ + mp->adf_state = state_idle; + if (mp->generation < 4) { query_status (s); @@ -1337,7 +1342,9 @@ return PIXMA_EBUSY; /* Generation 4: send XML dialog */ - if (mp->generation == 4 && s->param->adf_pageid == 0) + /* adf: first page or idle */ + if ((mp->generation == 4 && s->param->adf_pageid == 0) || + mp->adf_state == state_idle) { if (!send_xml_dialog (s, XML_START_1)) return PIXMA_EPROTO; @@ -1394,7 +1401,9 @@ } tmo = 10; - if (s->param->adf_pageid == 0 || mp->generation <= 2) + /* adf: first page or idle */ + if ((s->param->adf_pageid == 0 || mp->generation <= 2) || + mp->adf_state == state_idle) { /* single sheet or first sheet from ADF */ /* TODO: s->param->adf_pageid != 0 @ next scan session! */ PDBG (pixma_dbg (4, "*mp150_scan***** start scanning *****\n")); @@ -1456,6 +1465,10 @@ mp150_finish_scan (s); return error; } + + /* ADF scanning active */ + if (is_scanning_from_adf (s)) + mp->adf_state = state_scanning; return 0; }
