Fernando Trias wrote: > Folks, > > I've got a Brother MFC 6800 multi-function printer/scanner/fax and plan > to do some work on the scanning backend of sane. I already got > information from Dmitri Katchalov, who has done a lot of work to > decipher the proprietary protocol. > > I have one question (so far): > > The USB device provides three interfaces. The first one is the printer > and the second one is the scanner. > > However, I'm having problems with sane even looking at the device. > Perhaps I'm misreading the code, but it seems that there are a few > problems for this device. > > First, in sanei_usb_init(), the part that enumerates USB devices with > libusb only looks at the first interface, which in the case of this > device is the printer (class 7, USB_CLASS_PRINTER), whereas the scanner > is on interface 2 and is class 0xff (USB_CLASS_VENDOR_SPECIFIC). > > Perhaps sane could enumerate the interfaces and test each one? > > Second, kernel_get_vendor_product() is unable to get the Vendor and > Product ids. The calls to ioctl() all fail. So even if I create a link > in /dev/usb/scanner (or whatever), I can't get it identified. > > Any ideas? >
Try kernel 2.4.21, on the new Epson MF devices (Stylus CX3200/CX5200) there was also the problem that oinly the first device was recognized. This is solved in kernel 2.4.21. See also http://www.linuxprinting.org/show_printer.cgi?recnum=Epson-Stylus_CX3200 http://www.linuxprinting.org/show_printer.cgi?recnum=Epson-Stylus_CX5200 > Another question: is there any consumer-oriented multi-function > printer/scanner/fax that is supported by sane? All current HPs (PSC, OfficeJet, LaserJet) and Epson (Stylus CX3200/CX5200) are supported in terms of printing, scanning, and photo card access. PC-assisted fax is not supported yet, but it is worked on it. See http://www.linuxprinting.org/printer_list.cgi?make=Epson http://www.linuxprinting.org/printer_list.cgi?make=HP http://hpoj.sf.net/ http://www.linuxprinting.org/show_printer.cgi?recnum=Epson-Stylus_CX3200 http://www.linuxprinting.org/show_printer.cgi?recnum=Epson-Stylus_CX5200 Till
