There was a thread about this same scanner last month. http://lists.alioth.debian.org/pipermail/sane-devel/2008-November/023053.html The author got about as far as you did.
Next you are going to have to do some usb snooping on a windows machine using either http://www.pcausa.com/Utilities/UsbSnoop/ or http://benoit.papillault.free.fr/usbsnoop/. Then try to figure out the meaning of the snoop logs. Snoop logs are too big to post here, so you will need to find a free web site to post them to. I've used google site for this in the past. Jack McGill --- On Sun, 12/21/08, Damiano Rossi <damianorossi at paranoici.org> wrote: > From: Damiano Rossi <damianorossi at paranoici.org> > Subject: [sane-devel] Mustek BearPaw 2448CU pro > To: sane-devel at lists.alioth.debian.org > Date: Sunday, December 21, 2008, 9:39 AM > I am an owner of the scanner Mustek BearPaw 2448CU pro and > I'd like to > use it on linux system. I'm not a programmer but since > there is a > backend for a similar scanner (BearPaw 2448 TA pro) I'd > like to do my > best to adapt mustek_usb2 backend to support this scanner. > I'm using ubuntu 8.10 but I downloaded last CVS > sane-backends > I changed line 148 in mustek_usb2.c from > SANE_FALSE, /* Is this a CIS scanner? */ > into > SANE_TRUE, /* Is this a CIS scanner? */ > Because 2448cu is a CIS scanner and not a CCD one like 2448 > TA > I think that developer's intention was tu support CIS > sensors but maybe > the support is incomplete. > Then I replaced ProducId 0x409 with 0x408 in > mustek_usb2_asci.c > "BearPaw 2448CU Pro", /* Device model > name */ (mustek_usb2.c > line 128) > sane_device->model = strdup ("BearPaw 2448 CU > Pro"); (mustek_usb2.c line > 2082) > Now scanner is recognized from lsusb > when I try to scan with scanimage leds get on, motor start > but it > doesn't stop at the end and bumps with a noisy > trrrrrrrrrrrrr until I > unplug the usb cable. > When I try to scan with xsane leds get on, motor moves and > suddenly > stops with a long beep. > In both cases it seems that rgb data are read but an image > made of thick > red vertical lines is returned as output > > I tried to analyze the debug output setting > SANE_DEBUG_MUSTEK_USB2=255 > but in both cases there is no error. Each asic function > enter and exit > without errors. > What could I do at this point? > > > -- > sane-devel mailing list: sane-devel at lists.alioth.debian.org > http://lists.alioth.debian.org/mailman/listinfo/sane-devel > Unsubscribe: Send mail with subject "unsubscribe > your_password" > to sane-devel-request at lists.alioth.debian.org
