Can someone please give me some information about the canon canoscan d646u ex...i know its unsupported by sane, but maybe there is some workaround...i was thinking to develop a backend, but i don't know so much about the hardware part...what's the chipset.... Or best is to buy another scanner. thank by the helps, and sorry about the poor english....
Hebert Magalhaes -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.alioth.debian.org/pipermail/sane-devel/attachments/20060327/a17d934e/attachment.htm From power_station_2...@yahoo.com Tue Mar 28 05:46:58 2006 From: power_station_2...@yahoo.com (Tamkang) Date: Tue Mar 28 05:54:15 2006 Subject: [sane-devel] Authorization , plug on plug off the usb scanner ?? Message-ID: <20060328054658.64571.qm...@web30501.mail.mud.yahoo.com> I have a Question that I encounter when I debug microtek2.c there is an Authorization function , when it will use ? is it when open xsane as a user not as a root so I must login first not as root and after that I can use the scanner , there is a problem that I don't understand where is goes wrong in this situation: 1. when I use user login not root and then open xsane will have error the scanner I / O Port failed and the when I debug step by step to look for the error , it seems step into the sane_open function, and when after usb_open is open the handle device and after that step to usb_claim_interface it return error code. /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// sane_open (SANE_String_Const devicename, SANE_Handle *handle) {/*This function may return with one of the following status codes. 1.SANE_STATUS_IO_ERROR: An error occured while communicating with the device. 2.SANE_STATUS_NO_MEM: An insufficent amount of memory is available. 3.SANE_STATUS_GOOD: XSane Open successfully. */ Microtek_Scanner *ms = NULL; Microtek_Device *pdev; if (devicename[0]) {/* selected */ for(pdev = pdevFirst;pdev; pdev = pdev->next) if(!strcmp(devicename,pdev->sane.name)) break; /* no dynamic post-registration */ }else { pdev=pdevFirst; } if (!pdev) return SANE_STATUS_INVAL; ms = (Microtek_Scanner *)calloc(1, sizeof(Microtek_Scanner)); if(!ms) return SANE_STATUS_NO_MEM; ms->dev = pdev; ms->next = ms_first_handle; /* register open handle */ ms_first_handle = ms; //ms->model = pdev->model; /* memorize model */ /* open and prepare USB scanner handle */ ms->hdev = usb_open(pdev->dev); if (!ms->hdev) return SANE_STATUS_IO_ERROR;/*SetError(this,SANE_STATUS_IO_ERROR, "cannot open scanner device"); */ if (usb_claim_interface(ms->hdev, 0)) return SANE_STATUS_IO_ERROR;/*SetError(this,SANE_STATUS_IO_ERROR, "cannot claim IF"); */ if (usb_set_configuration(ms->hdev, 1)) return SANE_STATUS_IO_ERROR;/*SetError(this,SANE_STATUS_IO_ERROR, "cannot set USB config 1"); */ //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// after has appear this SANE_STATUS_IO_ERROR , I try to plug off the USB cable or plug off the power adapter from scanner and after 2 seconds, I plug on it again and after that I re-run the xsane and it succesfull open xsane, but when I restart the computer and use other to login not root it still have the problem SANE _STATUS_IO_ERROR, where is goes wrong ? it seems need root authorization isn't it ? because I use root there is no problem with IO ERROR. I use REDHAT 9 kernel 2.4.20-8 and sane-backend 1.0.15 and xsane.0.97 Thanks for your help Best regards, sofian --------------------------------- New Yahoo! Messenger with Voice. Call regular phones from your PC and save big. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.alioth.debian.org/pipermail/sane-devel/attachments/20060327/892e75c8/attachment-0001.htm From power_station_2...@yahoo.com Tue Mar 28 12:48:33 2006 From: power_station_2...@yahoo.com (Tamkang) Date: Tue Mar 28 12:49:00 2006 Subject: [sane-devel] Re: A problem with permissions Message-ID: <20060328124833.849.qm...@web30503.mail.mud.yahoo.com> It seems that I have a simillar problem with this one, it looks like the OS doesn't want to gave the USB_CLAIM_INTERFACE, so it appear I/O error. does anyone have any suggestion ? I use REDHAT 9 kernel 2.4.20-8 and sane-backend 1.0.15 and xsane.0.97 Thanks for your help Best regards, sofian > I've been configuring things on my machine running Debian and have been > > doing well with the exception of one nagging problem: getting SANE to > run > on my user account. When I log into root, it works perfectly, but, > when > I'm logged in as a user, it crashes without any identifiable error. > The > user is in the saned and scanner groups. I have tried to check > every file > and directory to find the one that does not have permission > set for the > user, but I seem to be missing something. Could someone > suggest somewhere > that I might not have thought to look? You need either udev or hotplug > installed, assuming your scanner is USB and its IDs are known by the version > of SANE you're using. If it still doesn't work, please provide more > information: scanner, libsane version would be a good start. --------------------------------- Blab-away for as little as 1?/min. Make PC-to-Phone Calls using Yahoo! Messenger with Voice. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.alioth.debian.org/pipermail/sane-devel/attachments/20060328/a5cd5d94/attachment.htm From felixrubiodal...@yahoo.es Tue Mar 28 13:20:07 2006 From: felixrubiodal...@yahoo.es (Felix Rubio Dalmau) Date: Tue Mar 28 13:27:17 2006 Subject: [sane-devel] padded formats Message-ID: <44293807.8080...@yahoo.es> -----BEGIN PGP SIGNED MESSAGE----- Hash: RIPEMD160 In SANE documentation is told that the number of bytes per line is padded by the formula gived there. Can I assume that the bytes of data are consecutive and, consequently, I should only remove the final bits (the ones to seem be the "padding bits") ? For example, if I have a line with 3 pixels, with 3 channels and a depth of 8 I should have 3 * 3 * 8 bpp/ 8 = 9 bytes but by the formula, I get 3 * 3 * [(8 + 7)/8 ] = 18 bytes. Can I remove the final 9 bytes? How must I manage this data? I know that it's a basic question, but I'm tryin to learn it :-) thanks! - -- Josep Felix Rubio Dalmau GnuPG Public Key: http://keyserver.veridis.com:11371/export?id=-9021467632073768555 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFEKTgGgs1O/IWPAZURAxuRAJ938e2H5c5XPAfT8+leR5wC3bpMHQCfYVtK Tn7R+ZhNL/6AvpemzFuIw90= =svlx -----END PGP SIGNATURE----- ______________________________________________ LLama Gratis a cualquier PC del Mundo. Llamadas a fijos y m?viles desde 1 c?ntimo por minuto. http://es.voice.yahoo.com
