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I have a Brother multifunction device (MFC-240C). It was running just fine some years ago when I Funtoo ran on 32 bit station. Nowadays only printer works in a Funtoo 64 bit environment while it is fully supported in a Debian 64 bit environment. Right driver is installed, rpm edition of 64 bit brscan2. Please note that printer drivers are 32 bit. There are no 64 bit available. media-gfx/simple-scan and media-gfx/sane-backends are installed. Both simple-scan and scanimage -L report that scanner is not detected no matter how commands are run (as root or as user). My user belongs to scanner and lp groups : guy@Funtoo ~ $ groups lp wheel audio cdrom video cdrw usb users scanner guy Rules for Brother are properly set. Excerpt from lib/udev/rules.d/41-libsane.rules : ATTRS{idVendor}=="04f9", ATTRS{idProduct}=="01ab", MODE="0664", GROUP="scanner", ENV{libsane_matched}="yes" What lsusb ans sane-fine-scanner report : guy@Funtoo ~ $ lsusb Bus 002 Device 008: ID 04f9:01ab Brother Industries, Ltd MFC-240C Bus 002 Device 007: ID 046d:c52f Logitech, Inc. Unifying Receiver Bus 002 Device 006: ID 05e3:0608 Genesys Logic, Inc. Hub Bus 002 Device 005: ID 0424:7500 Standard Microsystems Corp. LAN7500 Ethernet 10/100/1000 Adapter Bus 002 Device 004: ID 045e:0752 Microsoft Corp. Wired Keyboard 400 Bus 002 Device 003: ID 05e3:0608 Genesys Logic, Inc. Hub Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 003: ID 0c45:6406 Microdia Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub guy@Funtoo ~ $ sane-find-scanner # sane-find-scanner will now attempt to detect your scanner. If the # result is different from what you expected, first make sure your # scanner is powered up and properly connected to your computer. # No SCSI scanners found. If you expected something different, make sure that # you have loaded a kernel SCSI driver for your SCSI adapter. found USB scanner (vendor=0x04f9, product=0x01ab) at libusb:002:008 found USB scanner (vendor=0x0424 [WS], product=0x7500 [USB Gigabit LAN]) at libusb:002:005 # Your USB scanner was (probably) detected. It may or may not be supported by # SANE. Try scanimage -L and read the backend's manpage. # Not checking for parallel port scanners. # Most Scanners connected to the parallel port or other proprietary ports # can't be detected by this program. # You may want to run this program as root to find all devices. Once you # found the scanner devices, be sure to adjust access permissions as # necessary. What it happens when runnning scanimage : guy@Funtoo ~ $ scanimage -L No scanners were identified. If you were expecting something different, check that the scanner is plugged in, turned on and detected by the sane-find-scanner tool (if appropriate). Please read the documentation which came with this software (README, FAQ, manpages). Brother and scanner modules are in /usr/lib64 and /usr/lib64/sane with symlinks to /usr/lib and /usr/lib/sane accordingly. Is there anyone to tell me where to look at ?