bonjour,
J'ai investi dans sane aujourd'hui.
Depuis une maj, impossible d'avoir accès au scanner sur celui en 64 bits.
J'avais donc brancher le scanner usb sur celui en 32 bits
Les commandes :
---
# 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=0x04b8 [EPSON], product=0x010f [EPSON Scanner 010F], chip=LM9832/3) at libusb:003:017
found USB scanner (vendor=0x0bda [Generic], product=0x0129 [USB2.0-CRW]) at libusb:001:004
  # 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.
----
Il a bien trouvé mon scanner
found USB scanner (vendor=0x04b8 [EPSON], product=0x010f [EPSON Scanner
---
# 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).
---
Il ne le trouve plus.
Sur le serveur 32 bits
---
]# scanimage -L
device `plustek:libusb:002:004' is a Epson Perfection 1250/Photo flatbed scanner
---
Je suis en train d'essayer de comprendre le problème.
sur le serveur en 32 bits
---
# sane-find-scanner -v -v
...
<device descriptor of 0x04b8/0x010f at 002:003 (EPSON EPSON Scanner 010F)>
bLength               18
bDescriptorType       1
bcdUSB                1.10
bDeviceClass          255
bDeviceSubClass       0
bDeviceProtocol       255
bMaxPacketSize0       8
idVendor              0x04B8
idProduct             0x010F
bcdDevice             1.00
iManufacturer         1 (EPSON)
iProduct              2 (EPSON Scanner 010F)
iSerialNumber         0 ()
bNumConfigurations    1
 <configuration 0>
 bLength              9
 bDescriptorType      2
 wTotalLength         39
 bNumInterfaces       1
 bConfigurationValue  1
 iConfiguration       0 ()
 bmAttributes         192 (Self-powered)
 MaxPower             2 mA
  <interface 0>
   <altsetting 0>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   0
   bAlternateSetting  0
   bNumEndpoints      3
   bInterfaceClass    255
   bInterfaceSubClass 0
   bInterfaceProtocol 255
   iInterface         0 ()
    <endpoint 0>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x81 (in 0x01)
    bmAttributes      3 (interrupt)
    wMaxPacketSize    1
    bInterval         16 ms
    bRefresh          0
    bSynchAddress     0
    <endpoint 1>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x82 (in 0x02)
    bmAttributes      2 (bulk)
    wMaxPacketSize    64
    bInterval         0 ms
    bRefresh          0
    bSynchAddress     0
    <endpoint 2>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x03 (out 0x03)
    bmAttributes      2 (bulk)
    wMaxPacketSize    64
    bInterval         0 ms
    bRefresh          0
    bSynchAddress     0
<trying to find out which USB chip is used>
    checking for GT-6801 ...
    this is not a GT-6801 (bDeviceSubClass = 0x0)
    checking for GT-6816 ...
    this is not a GT-6816 (bDeviceClass = 255, bInterfaceClass = 255)
    checking for GT-8911 ...
    this is not a GT-8911 (check 1, bDeviceClass = 255, bInterfaceClass = 255)
    checking for MA-1017 ...
    this is not a MA-1017 (bDeviceClass = 255, bInterfaceClass = 255)
    checking for MA-1015 ...
    this is not a MA-1015 (bcdUSB = 0x110)
    checking for MA-1509 ...
    this is not a MA-1509 (bDeviceSubClass = 0x0)
    checking for LM983[1,2,3] ...
<This USB chip looks like a LM9832/3 (result from sane-backends 1.0.21)>
found USB scanner (vendor=0x04b8 [EPSON], product=0x010f [EPSON Scanner 010F], chip=LM9832/3) at libusb:002:003
...
---
il a trouvé le chip LM9832/3.
sur le serveur 64 bits
----
# sane-find-scanner -v -v
...
<device descriptor of 0x04b8/0x010f at 003:015 (EPSON EPSON Scanner 010F)>
bLength               18
bDescriptorType       1
bcdUSB                1.10
bDeviceClass          255
bDeviceSubClass       0
bDeviceProtocol       255
bMaxPacketSize0       8
idVendor              0x04B8
idProduct             0x010F
bcdDevice             1.00
iManufacturer         1 (EPSON)
iProduct              2 (EPSON Scanner 010F)
iSerialNumber         0 ()
bNumConfigurations    1
 <configuration 0>
 bLength              9
 bDescriptorType      2
 wTotalLength         39
 bNumInterfaces       1
 bConfigurationValue  1
 iConfiguration       0 ()
 bmAttributes         192 (Self-powered)
 MaxPower             2 mA
  <interface 0>
   <altsetting 0>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   0
   bAlternateSetting  0
   bNumEndpoints      3
   bInterfaceClass    255
   bInterfaceSubClass 0
   bInterfaceProtocol 255
   iInterface         0 ()
    <endpoint 0>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x81 (in 0x01)
    bmAttributes      3 (interrupt)
    wMaxPacketSize    1
    bInterval         16 ms
    bRefresh          0
    bSynchAddress     0
    <endpoint 1>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x82 (in 0x02)
    bmAttributes      2 (bulk)
    wMaxPacketSize    64
    bInterval         0 ms
    bRefresh          0
    bSynchAddress     0
    <endpoint 2>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x03 (out 0x03)
    bmAttributes      2 (bulk)
    wMaxPacketSize    64
    bInterval         0 ms
    bRefresh          0
    bSynchAddress     0
<trying to find out which USB chip is used>
    checking for GT-6801 ...
    this is not a GT-6801 (bDeviceSubClass = 0x0)
    checking for GT-6816 ...
    this is not a GT-6816 (bDeviceClass = 255, bInterfaceClass = 255)
    checking for GT-8911 ...
    this is not a GT-8911 (check 1, bDeviceClass = 255, bInterfaceClass = 255)
    checking for MA-1017 ...
    this is not a MA-1017 (bDeviceClass = 255, bInterfaceClass = 255)
    checking for MA-1015 ...
    this is not a MA-1015 (bcdUSB = 0x110)
    checking for MA-1509 ...
    this is not a MA-1509 (bDeviceSubClass = 0x0)
    checking for LM983[1,2,3] ...
  Couldn't access LM983x registers.
    checking for GL646 ...
    this is not a GL646 (bDeviceClass = 255, bInterfaceClass = 255)
    checking for GL646_HP ...
    this is not a GL646_HP (bDeviceSubClass = 0x0)
    checking for GL660+GL646 ...
    this is not a GL660+GL646 (bDeviceClass = 255, bInterfaceClass = 255)
    checking for GL84x ...
    this is not a GL84x (bcdUSB = 0x110)
    checking for ICM532B ...
    this is not a ICM532B (check 3, bDeviceSubClass = 0x0)
    checking for PV8630/LM9830 ...
    this is not a PV8630/LM9830 (bDeviceClass = 255)
    checking for M011 ...
    this is not a M011 (bcdUSB = 0x110)
    checking for RTS8822 ...
    this is not a RTS8822 (bDeviceClass = 255)
    checking for rts8858c ...
    this is not a rts8858c (bDeviceClass = 255)
    checking for SQ113 ...
    this is not a SQ113 (bDeviceClass = 255)
    checking for HP4500C/4570C/5500C/5550C/5590/7650 chipset ...
    this is not a HP4500C/4570C/5500C/5550C/5590/7650 chipset (bcdUSB = 0x110)
    checking for rts8801/rts8891 ...
    this is not a rts8801/rts8891 (bDeviceClass = 255)
<Couldn't determine the type of the USB chip (result from sane-backends 1.0.21)>
found USB scanner (vendor=0x04b8 [EPSON], product=0x010f [EPSON Scanner 010F]) at libusb:003:015
...
---
Il ne trouve pas le chip
    checking for LM983[1,2,3] ...
  Couldn't access LM983x registers.
c'est quoi un register et pourquoi il n'y aurait pas accès
Si quelqu'un a une idée pour continuer les recherches...
merci
anne