[sane-devel] Re: sane-find-scanner detects smartcard reader as scanner
Hi, It is not a special case for you. Even if you attach any webcam you will find that sane-find-scanner will show it's USB ID's. What sane-find-scanner does 1)it searches for all attached devices right from scsi devices to usb devices. 2) In case of usb devices sane-find-scanner program calls check_usb_file function in sane-find-scanner.c 3)check_usb_file will open each attached usb device and then collect USB ID's and it will show you that output. So no wonder. Regards, Parag. On 8/8/06, Johannes Meixner jsm...@suse.de wrote: Hello, sane-find-scanner from sane-backends 1.0.17 detects the following USB smartcard reader as a scanner: idVendor 0x0c4b Reiner SCT Kartensysteme GmbH idProduct 0x0300 cyberJack pinpad(a) I don't have the device to test it with sane-backends 1.0.18 but I guess it is also detected with sane-backends 1.0.18. For the details see https://bugzilla.novell.com/show_bug.cgi?id=197513 in particular https://bugzilla.novell.com/attachment.cgi?id=95324action=view By the way: Nowhere in the sources of sane-backends 1.0.17 I can find the USB vendor ID (neither 'c4b' nor 'C4B'). Which magic lets sane-find-scanner detect this device as a scanner? Kind Regards Johannes Meixner -- SUSE LINUX Products GmbH, Maxfeldstrasse 5 Mail: jsm...@suse.de 90409 Nuernberg, GermanyWWW: http://www.suse.de/ -- sane-devel mailing list: sane-devel@lists.alioth.debian.org http://lists.alioth.debian.org/mailman/listinfo/sane-devel Unsubscribe: Send mail with subject unsubscribe your_password to sane-devel-requ...@lists.alioth.debian.org
[sane-devel] sane-find-scanner detects smartcard reader as scanner
sane-find-scanner is a tool for a very specific task, locating possible scanners connected to the system, even if they are not supported by sane. unlike scsi, there is no usb class for scanners, so sane has no generic way of determining if a usb id is a scanner or not. that is why we also recommend the use of scanimage -L, which actually attaches to each enabled backend, and asks it to query for scanners it knows about. notabug. allan ps- if sane-find-scanner needs to spit out a better message, that is a possible change, it currently says: # Your USB scanner was (probably) detected. It may or may not be supported by # SANE. Try scanimage -L and read the backend's manpage. On Tue, 8 Aug 2006, Johannes Meixner wrote: Hello, sane-find-scanner from sane-backends 1.0.17 detects the following USB smartcard reader as a scanner: idVendor 0x0c4b Reiner SCT Kartensysteme GmbH idProduct 0x0300 cyberJack pinpad(a) I don't have the device to test it with sane-backends 1.0.18 but I guess it is also detected with sane-backends 1.0.18. For the details see https://bugzilla.novell.com/show_bug.cgi?id=197513 in particular https://bugzilla.novell.com/attachment.cgi?id=95324action=view By the way: Nowhere in the sources of sane-backends 1.0.17 I can find the USB vendor ID (neither 'c4b' nor 'C4B'). Which magic lets sane-find-scanner detect this device as a scanner? Kind Regards Johannes Meixner -- so don't tell us it can't be done, putting down what you don't know. money isn't our god, integrity will free our souls - Max Cavalera
[sane-devel] Re: sane-find-scanner detects smartcard reader as scanner
Hello, On Aug 8 16:49 Parag N() wrote (shortened): What sane-find-scanner does ... 3)check_usb_file will open each attached usb device and then collect USB ID's and it will show you that output. Not in any case. There are several other USB devices which are correctly not shown as scanners by sane-find-scanner. Right now I didn't check check_usb_file and the functions which it calls in detail but according to https://bugzilla.novell.com/attachment.cgi?id=95324action=view it seems sane-find-scanner lists any USB device as scanner when either bDeviceClass = 255 (Vendor Specific Class) or bDeviceClass = 0 (Defined at Interface level) and bInterfaceClass = 255 (Vendor Specific Class) because those USB devices are The Usual Suspects ;-) Kind Regards Johannes Meixner -- SUSE LINUX Products GmbH, Maxfeldstrasse 5 Mail: jsm...@suse.de 90409 Nuernberg, GermanyWWW: http://www.suse.de/
[sane-devel] sane-find-scanner detects smartcard reader as scanner
Hello, On Aug 8 08:04 m. allan noah wrote (shortened): unlike scsi, there is no usb class for scanners I thought there is even no SCSI class for scanners. At least my SCSI scanner HP ScanJet 6200C shows up as Processor: # lsscsi -c ... Host: scsi0 Channel: 00 Target: 04 Lun: 00 Vendor: HP Model: C6270A Rev: 3846 Type: ProcessorANSI SCSI revision: 02 Kind Regards Johannes Meixner -- SUSE LINUX Products GmbH, Maxfeldstrasse 5 Mail: jsm...@suse.de 90409 Nuernberg, GermanyWWW: http://www.suse.de/
[sane-devel] Re: sane-find-scanner detects smartcard reader as scanner
Hi, On 8/8/06, Johannes Meixner jsm...@suse.de wrote: Hello, On Aug 8 16:49 Parag N() wrote (shortened): What sane-find-scanner does ... 3)check_usb_file will open each attached usb device and then collect USB ID's and it will show you that output. Not in any case. There are several other USB devices which are correctly not shown as scanners by sane-find-scanner. Can i know which are those that you experienced are not detected by sane-find-scanner? Right now I didn't check check_usb_file and the functions which it calls in detail but according to https://bugzilla.novell.com/attachment.cgi?id=95324action=view it seems sane-find-scanner lists any USB device as scanner when either bDeviceClass = 255 (Vendor Specific Class) or bDeviceClass = 0 (Defined at Interface level) and bInterfaceClass = 255 (Vendor Specific Class) because those USB devices are The Usual Suspects ;-) yeah i just checked with other USB webcams and barcode scanners and what i found is that your observation is correct. for all webcams i got either bDeviceClass = 255 (Vendor Specific Class) or bDeviceClass = 0 (Defined at Interface level) with bInterfaceClass = 255 (Vendor Specific Class) but for USB barcode scanner i got bDeviceClass = 0 (Defined at Interface level) with bInterfaceClass = 3 which is not detected by sane-find-scanner. Kind Regards Johannes Meixner -- SUSE LINUX Products GmbH, Maxfeldstrasse 5 Mail: jsm...@suse.de 90409 Nuernberg, GermanyWWW: http://www.suse.de/ -- sane-devel mailing list: sane-devel@lists.alioth.debian.org http://lists.alioth.debian.org/mailman/listinfo/sane-devel Unsubscribe: Send mail with subject unsubscribe your_password to sane-devel-requ...@lists.alioth.debian.org
[sane-devel] sane-find-scanner detects smartcard reader as scanner
Hi, On 8/8/06, Johannes Meixner jsm...@suse.de wrote: Hello, On Aug 8 08:04 m. allan noah wrote (shortened): unlike scsi, there is no usb class for scanners I thought there is even no SCSI class for scanners. At least my SCSI scanner HP ScanJet 6200C shows up as Processor: # lsscsi -c ... Host: scsi0 Channel: 00 Target: 04 Lun: 00 Vendor: HP Model: C6270A Rev: 3846 Type: ProcessorANSI SCSI revision: 02 I need to check this as i don't have any scsi scanner. Kind Regards Johannes Meixner -- SUSE LINUX Products GmbH, Maxfeldstrasse 5 Mail: jsm...@suse.de 90409 Nuernberg, GermanyWWW: http://www.suse.de/ -- sane-devel mailing list: sane-devel@lists.alioth.debian.org http://lists.alioth.debian.org/mailman/listinfo/sane-devel Unsubscribe: Send mail with subject unsubscribe your_password to sane-devel-requ...@lists.alioth.debian.org
[sane-devel] Re: sane-find-scanner detects smartcard reader as scanner
Hello, On Aug 8 18:34 Parag N() wrote (shortened): On 8/8/06, Johannes Meixner jsm...@suse.de wrote: On Aug 8 16:49 Parag N() wrote (shortened): What sane-find-scanner does ... 3)check_usb_file will open each attached usb device and then collect USB ID's and it will show you that output. ... Right now I didn't check check_usb_file and the functions which it calls in detail but according to https://bugzilla.novell.com/attachment.cgi?id=95324action=view it seems sane-find-scanner lists any USB device as scanner when either bDeviceClass = 255 (Vendor Specific Class) or bDeviceClass = 0 (Defined at Interface level) and bInterfaceClass = 255 (Vendor Specific Class) because those USB devices are The Usual Suspects ;-) yeah i just checked with other USB webcams and barcode scanners and what i found is that your observation is correct. for all webcams i got either bDeviceClass = 255 (Vendor Specific Class) or bDeviceClass = 0 (Defined at Interface level) with bInterfaceClass = 255 (Vendor Specific Class) but for USB barcode scanner i got bDeviceClass = 0 (Defined at Interface level) with bInterfaceClass = 3 which is not detected by sane-find-scanner. As far as I have found out up to now, it is not check_usb_file() but nowadays check_libusb_device() (if libusb is used) and here the section /* Some heuristics, which device may be a scanner */ seems to be the crucial one: --- case USB_CLASS_VENDOR_SPEC: ++is_scanner; break; ... case USB_CLASS_VENDOR_SPEC: case USB_CLASS_PER_INTERFACE: case 16:/* data? */ ++is_scanner; break; ... if (is_scanner 0) ... printf (found USB scanner ... --- In particular it seems bInterfaceClass is not tested at all. Kind Regards Johannes Meixner -- SUSE LINUX Products GmbH, Maxfeldstrasse 5 Mail: jsm...@suse.de 90409 Nuernberg, GermanyWWW: http://www.suse.de/
[sane-devel] sane-find-scanner detects smartcard reader as scanner
On Tue, Aug 08, 2006 at 06:36:10PM +0530, Parag N() wrote: On Aug 8 08:04 m. allan noah wrote (shortened): unlike scsi, there is no usb class for scanners I thought there is even no SCSI class for scanners. At least my SCSI scanner HP ScanJet 6200C shows up as Processor: # lsscsi -c ... Host: scsi0 Channel: 00 Target: 04 Lun: 00 Vendor: HP Model: C6270A Rev: 3846 Type: ProcessorANSI SCSI revision: 02 I need to check this as i don't have any scsi scanner. Attached devices: Host: scsi0 Channel: 00 Id: 03 Lun: 00 Vendor: UMAX Model: Astra 1200S Rev: V2.9 Type: Scanner ANSI SCSI revision: 02 Host: scsi0 Channel: 00 Id: 06 Lun: 00 Vendor: MICROTEK Model: ScanMaker II Rev: 5.61 Type: Scanner ANSI SCSI revision: 01 CCS Daniel
[sane-devel] sane-find-scanner detects smartcard reader as scanner
On Tue, 8 Aug 2006, Johannes Meixner wrote: Hello, On Aug 8 08:04 m. allan noah wrote (shortened): unlike scsi, there is no usb class for scanners I thought there is even no SCSI class for scanners. At least my SCSI scanner HP ScanJet 6200C shows up as Processor: # lsscsi -c ... Host: scsi0 Channel: 00 Target: 04 Lun: 00 Vendor: HP Model: C6270A Rev: 3846 Type: ProcessorANSI SCSI revision: 02 Kind Regards Johannes Meixner there is a scanner class (6, iirc). it is defined in section 15 of the scsi2 spec. hp is just stupid :) allan -- so don't tell us it can't be done, putting down what you don't know. money isn't our god, integrity will free our souls - Max Cavalera
[sane-devel] sane-find-scanner detects smartcard reader as scanner
Johannes Meixner wrote: Hello, On Aug 8 08:04 m. allan noah wrote (shortened): unlike scsi, there is no usb class for scanners I thought there is even no SCSI class for scanners. At least my SCSI scanner HP ScanJet 6200C shows up as Processor: # lsscsi -c ... Host: scsi0 Channel: 00 Target: 04 Lun: 00 Vendor: HP Model: C6270A Rev: 3846 Type: ProcessorANSI SCSI revision: 02 Some HP scanners don't support the SCSI command set for scanners; they use some vendor specific command set instead. For these devices it is probably correct that they identify themselves as processors, i.e., a kind of generic SCSI devices. But this means that sane-find-scanner will detect other fancy SCSI devices too. If my memory does not deceive me, somebody reported problems on this list with a SCSI RAID controller, which presented its control part to the Linux kernel as a SCSI processor. Another candidate for this device class would be a tape robot. Abel
[sane-devel] Re: sane-find-scanner detects smartcard reader as scanner
Hi, On 8/8/06, Johannes Meixner jsm...@suse.de wrote: Hello, On Aug 8 18:34 Parag N() wrote (shortened): On 8/8/06, Johannes Meixner jsm...@suse.de wrote: On Aug 8 16:49 Parag N() wrote (shortened): What sane-find-scanner does ... 3)check_usb_file will open each attached usb device and then collect USB ID's and it will show you that output. ... Right now I didn't check check_usb_file and the functions which it calls in detail but according to https://bugzilla.novell.com/attachment.cgi?id=95324action=view it seems sane-find-scanner lists any USB device as scanner when either bDeviceClass = 255 (Vendor Specific Class) or bDeviceClass = 0 (Defined at Interface level) and bInterfaceClass = 255 (Vendor Specific Class) because those USB devices are The Usual Suspects ;-) yeah i just checked with other USB webcams and barcode scanners and what i found is that your observation is correct. for all webcams i got either bDeviceClass = 255 (Vendor Specific Class) or bDeviceClass = 0 (Defined at Interface level) with bInterfaceClass = 255 (Vendor Specific Class) but for USB barcode scanner i got bDeviceClass = 0 (Defined at Interface level) with bInterfaceClass = 3 which is not detected by sane-find-scanner. As far as I have found out up to now, it is not check_usb_file() but nowadays check_libusb_device() (if libusb is used) and here the section /* Some heuristics, which device may be a scanner */ seems to be the crucial one: --- case USB_CLASS_VENDOR_SPEC: ++is_scanner; break; ... case USB_CLASS_VENDOR_SPEC: case USB_CLASS_PER_INTERFACE: case 16:/* data? */ ++is_scanner; break; ... if (is_scanner 0) ... printf (found USB scanner ... --- In particular it seems bInterfaceClass is not tested at all. You can then file this problem in bugzilla and even submit patch for it. Regards, Parag.
[sane-devel] sane-find-scanner ...
Much more interesting than this discussion why sane-find-scanner works would be a hint what can be done if scanimage -L does not detect the scanner. I have this problem under Linux with an SCSI scanner (i.e., sane-find-scanner sees it, but scanimage not). Regards, Ulrich Deiters -- Prof. Dr. Ulrich K. Deiters __ Institut f. Physikalische Chemie \ Luxemburger Str. 116, D-50939 Koeln Universitaet zu Koeln /\/\__. \ Tel. +49 (0)221 470-4543, Fax -4900 L|L|__|\ http://www.uni-koeln.de/deiters/
[sane-devel] sane-find-scanner ...
this is because there is no sane backend being loaded which supports the scanner. what scanner is it? allan On Tue, 8 Aug 2006, Ulrich Deiters wrote: Much more interesting than this discussion why sane-find-scanner works would be a hint what can be done if scanimage -L does not detect the scanner. I have this problem under Linux with an SCSI scanner (i.e., sane-find-scanner sees it, but scanimage not). Regards, Ulrich Deiters -- so don't tell us it can't be done, putting down what you don't know. money isn't our god, integrity will free our souls - Max Cavalera
[sane-devel] plustek:libusb bugs on canon canoscan n1220U
Hello, I own a flatbed scanner Canon CanoScan N1220U. The device name is plustek:libusb:002:002. I find some bug in that backend or at least in that device support. * The product name is N1220U instead of CanoScan N1220U * The option group buttons has 5 readonly options button of type SANE_TYPE_OPTION instead of SANE_TYPE_BUTTON * the device type is USB flatbed scanner instead of flatbed scanner. I do not have such bug with an HP all-in-one printer. So i guess this are backend bug. Thanks. -- Verso l'Alto !
[sane-devel] Polling HP Scanjet 7400c buttons?
Hi Folks, Is there an API to access button status? Specifically, Email, Fax, Copy, OCR buttons? Additionally, is there an interface to modify the LCD string? Thanks, Nick
[sane-devel] Polling HP Scanjet 7400c buttons?
not an 'API' exactly, but more of a 'convention'. there are a couple of button daemons floating around (one is in the experimental cvs tree) which attempt to read the value of certain named options provided by the backend. so, you would have to make sure your scanner's backend exposes the buttons, and then you would have to (likely) make some mods to a buttond to do something when a button is pressed. write to the LCD? can the windows software do that? allan On Tue, 8 Aug 2006, Nick Papadonis wrote: Hi Folks, Is there an API to access button status? Specifically, Email, Fax, Copy, OCR buttons? Additionally, is there an interface to modify the LCD string? Thanks, Nick -- so don't tell us it can't be done, putting down what you don't know. money isn't our god, integrity will free our souls - Max Cavalera
[sane-devel] offer to help testing Canon 8400F
Hi all! I subscribed to this list on Henning Meier-Geinitz' suggestion. I have a Canon CanoScan 8400F scanner, which i would like very much to be usable in a Linux environment (I use SUSE 10.1 64bit). I am not a programmer. However, I am willing to test stuff that developers write and could adapt some config-files and report how it works. I also could run some USB-sniffing on the Windows driver, but have never done it so far. So please, anyone working on the genesys backend at the moment, feel free to contact me to further this project. I believe support of scanners is one of the last white islands of Linux, and I'd like to do something b'out it. Thanks Wolfgang
[sane-devel] Polling HP Scanjet 7400c buttons?
On Tue, 8 Aug 2006, Nick Papadonis wrote: Is there an API to access button status? Specifically, Email, Fax, Copy, OCR buttons? Additionally, is there an interface to modify the LCD string? On Tue, 2006-08-08 at 13:55 -0400, m. allan noah wrote: not an 'API' exactly, but more of a 'convention'. there are a couple of button daemons floating around (one is in the experimental cvs tree) which attempt to read the value of certain named options provided by the backend. The interface/convention you mention is good, but too high a level. I search the the HP backends and didn't see much in regards to button polling. I did see mention of polling the front button, but not sure what it is. I'm wondering if the buttons can be accessed via the SCL (HP Scanner Control Language) interface. Does anyone know? Specs anyone? write to the LCD? can the windows software do that? Not sure, only Linux here. I figured it must because all my HP 7400c ever displays is Initializing or Ready on the LCD. Even during scans. Thanks, Nick
