Canon LIDE 90
USB
0x04a9
0x1900
GL842 (Genesys well known scanner chip) GLT44016P (SO40 RAM) BU6574 (TSSOP20 ????????????) VHC175 (TSSOP16 quad flip flop) VHC08 (TSSOP16 quad and) LB1940 (TSSOP20 constant current driver) LM324 (SO14 quad op amp) 1733 (TO-263 regularor)
<device descriptor of 0x04a9/0x1900 at 004:004 (Canon CanoScan)>
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 255
bDeviceSubClass 255
bDeviceProtocol 255
bMaxPacketSize0 64
idVendor 0x04A9
idProduct 0x1900
bcdDevice 3.07
iManufacturer 1 (Canon)
iProduct 2 (CanoScan)
iSerialNumber 0 ()
bNumConfigurations 1
<configuration 0>
bLength 9
bDescriptorType 2
wTotalLength 39
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0 ()
bmAttributes 160 (Remote Wakeup)
MaxPower 500 mA
<interface 0>
<altsetting 0>
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 3
bInterfaceClass 255
bInterfaceSubClass 255
bInterfaceProtocol 255
iInterface 0 ()
<endpoint 0>
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 (in 0x01)
bmAttributes 2 (bulk)
wMaxPacketSize 512
bInterval 0 ms
bRefresh 0
bSynchAddress 0
<endpoint 1>
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 (out 0x02)
bmAttributes 2 (bulk)
wMaxPacketSize 512
bInterval 0 ms
bRefresh 0
bSynchAddress 0
<endpoint 2>
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 (in 0x03)
bmAttributes 3 (interrupt)
wMaxPacketSize 1
bInterval 8 ms
bRefresh 0
bSynchAddress 0
<trying to find out which USB chip is used>
checking for GT-6801 ...
this is not a GT-6801 (bcdUSB = 0x200)
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 = 0x200)
checking for MA-1509 ...
this is not a MA-1509 (bcdUSB = 0x200)
checking for LM983[1,2,3] ...
this is not a LM983x (bcdUSB = 0x200)
checking for GL646 ...
this is not a GL646 (bDeviceClass = 255, bInterfaceClass = 255)
checking for GL646_HP ...
this is not a GL646_HP (bcdUSB = 0x200)
checking for GL660+GL646 ...
this is not a GL660+GL646 (bDeviceClass = 255, bInterfaceClass = 255)
checking for GL841 ...
<This USB chip looks like a GL841 (result from sane-backends 1.0.18)>
If anything is wrong or missing on this page please file a bug report or use the the form for adding an unsupported device.
If you own an unsupported scanner, please send as much information as possible. Especially the output of sane-find-scanner -v -v and/or cat /proc/scsi/scsi (for SCSI scanners) or cat /proc/bus/usb/devices (for USB scanners) can help. If you dare to open the scanner, have a look at the text that's printed on the chips. That may help to identify the chipset. If you know that the scanner is similar to another one (e.g. supported by the same Windows driver), please also mention this fact.
Are you a manufacturer or vendor of scanners and one of your scanners is not supported by SANE yet? In this case please have a look at our information for manufacturers.