linux:~ # sane-find-scanner
# Note that sane-find-scanner will find any scanner that is connected
# to a SCSI bus and some scanners that are connected to the Universal
# Serial Bus (USB) depending on your OS. It will even find scanners
# that are not supported at all by SANE. It won't find a scanner that
# is connected to a parallel or proprietary port.

linux:~ # lsmod
Module                  Size  Used by    Not tainted
snd-pcm-oss            44928   0  (autoclean)
snd-mixer-oss          12728   0  (autoclean) [snd-pcm-oss]
videodev                5600   0  (autoclean)
usbserial              18492   0  (autoclean) (unused)
parport_pc             25544   1  (autoclean)
lp                      6656   0  (autoclean)
parport                22528   1  (autoclean) [parport_pc lp]
snd-seq-midi            4480   0  (unused)
snd-seq-midi-event      2920   0  [snd-seq-midi]
snd-seq                37776   0  [snd-seq-midi snd-seq-midi-event]
snd-ens1371            11532   0
snd-pcm                63328   0  [snd-pcm-oss snd-ens1371]
snd-timer              11524   0  [snd-seq snd-pcm]
snd-rawmidi            13920   0  [snd-seq-midi snd-ens1371]
snd-seq-device          4140   0  [snd-seq-midi snd-seq snd-rawmidi]
snd-ac97-codec         26628   0  [snd-ens1371]
snd                    31300   0  [snd-pcm-oss snd-mixer-oss snd-seq-midi snd-se
q-midi-event snd-seq snd-ens1371 snd-pcm snd-timer snd-rawmidi snd-seq-device sn
d-ac97-codec]
soundcore               3396   0  [snd]
ipv6                  138964  -1  (autoclean)
st                     26924   0  (autoclean) (unused)
sr_mod                 13432   0  (autoclean)
cdrom                  26400   0  (autoclean) [sr_mod]
sg                     27904   0  (autoclean)
joydev                  5600   0  (unused)
evdev                   4352   0  (unused)
input                   3168   0  [joydev evdev]
usb-uhci               21612   0  (unused)
usbcore                56768   1  [usbserial snd usb-uhci]
hisax                 470500   4
isdn                  123584   6  [hisax]
slhc                    5040   1  [isdn]
isa-pnp                29664   0  [hisax]
ipt_REJECT              2712   0  (autoclean)
iptable_mangle          2072   0  (autoclean) (unused)
iptable_filter          1644   0  (autoclean)
ip_nat_ftp              3056   0  (unused)
iptable_nat            13688   1  [ip_nat_ftp]
ip_conntrack_ftp        3456   0  (unused)
ip_conntrack           14140   2  [ip_nat_ftp iptable_nat ip_conntrack_ftp]
ip_tables              11576   6  [ipt_REJECT iptable_mangle iptable_filter ipta                                ble_nat]
nls_iso8859-15          3324   1  (autoclean)
nls_cp437               4316   1  (autoclean)
vfat                    9620   1  (autoclean)
fat                    30584   0  (autoclean) [vfat]
lvm-mod                62976   0  (autoclean)
ide-scsi                7920   0
reiserfs              179536   1
linux:~ # modprobe scanner
linux:~ # sane-find-scanner
# Note that sane-find-scanner will find any scanner that is connected
# to a SCSI bus and some scanners that are connected to the Universal
# Serial Bus (USB) depending on your OS. It will even find scanners
# that are not supported at all by SANE. It won't find a scanner that
# is connected to a parallel or proprietary port.

sane-find-scanner: found USB scanner (vendor = 0x04a9, product = 0x2204) at devi                                ce /dev/usb/scanner0
sane-find-scanner: found USB scanner (vendor = 0x04a9, product = 0x2204) at devi                                ce /dev/usbscanner
linux:~ # scanimage -L
device `canon630u:/dev/usb/scanner0' is a CANON Canoscan FB630U flatbed scanner
device `canon630u:/dev/usbscanner' is a CANON Canoscan FB630U flatbed scanner
linux:~ # xsanimage
bash: xsanimage: command not found
linux:~ # xscanimage
l