[sane-devel] Canon LiDE 70 support

[Maik Musall]

Hi,

I'm newly subscribed here, and found just two postings about this
scanner in the archives. I purchased one today and am trying to get
support for it. So far, no success. I tried to just add a struct
canon_lide_70_model into genesys_devices.c by copying the lide_60 part
and only adjusting the resolutions and model names, and adding a line
  {0x04a9, 0x221c, &canon_lide_60_model},
into genesys_usb_device_list. After this, I added the usb data to
/etc/sane.d/genesys.conf, and then after compiling I get:

# scanimage -L
device `genesys:libusb:004:007' is a Canon LiDE 70 flatbed scanner

but scanning doesn't actually work:

# scanimage > ~/file.pnm
scanimage: open of device genesys:libusb:004:007 failed: Invalid argument

The scanner doesn't show any reaction. I wonder if it's a GENE based one
at all. How do I find out?  How can I help to get this supported? I have
14 days before I have to send it back if it doesn't work... ;-)

I'm using gentoo Linux 2.6.17-r8 and sane-backends 1.0.18-r2.

Here is the lsusb -v -v output's section about the scanner:

Bus 004 Device 007: ID 04a9:2225 Canon, Inc.
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass          255 Vendor Specific Class
  bDeviceSubClass       255 Vendor Specific Subclass
  bDeviceProtocol       255 Vendor Specific Protocol
  bMaxPacketSize0        64
  idVendor           0x04a9 Canon, Inc.
  idProduct          0x2225
  bcdDevice            0.00
  iManufacturer           1 Canon
  iProduct                2 CanoScan
  iSerial                 0
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           32
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0
    bmAttributes         0xa0
      Remote Wakeup
    MaxPower              500mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass    255 Vendor Specific Subclass
      bInterfaceProtocol    255 Vendor Specific Protocol
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x02  EP 2 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x83  EP 3 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
Device Qualifier (for other device speed):
  bLength                10
  bDescriptorType         6
  bcdUSB               2.00
  bDeviceClass          255 Vendor Specific Class
  bDeviceSubClass       255 Vendor Specific Subclass
  bDeviceProtocol       255 Vendor Specific Protocol
  bMaxPacketSize0        64
  bNumConfigurations      1

Regards
-- 
Maik Musall <maik at musall.de>
GPG public key 0x856861EB (keyserver: wwwkeys.de.pgp.net)