T: Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 20 Spd=12 MxCh= 0
D: Ver= 2.00 Cls=ff(vend.) Sub=ff Prot=ff MxPS=64 #Cfgs= 1
P: Vendor=04a9 ProdID=220f Rev= 3.01
S: Manufacturer=Canon
S: Product=Scanner
C:* #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr= 10mA
I: If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E: Ad=81(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms
E: Ad=83(I) Atr=03(Int.) MxPS= 1 Ivl=8ms
This is sane-find-scanner from sane-backends 1.0.15
<device descriptor of 0x04a9/0x220f at 001:002 (Canon Scanner)>
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 255
bDeviceSubClass 255
bDeviceProtocol 255
bMaxPacketSize0 64
idVendor 0x04A9
idProduct 0x220F
bcdDevice 3.01
iManufacturer 1 (Canon)
iProduct 2 (Scanner)
iSerialNumber 0 ()
bNumConfigurations 1
<configuration 0>
bLength 9
bDescriptorType 2
wTotalLength 39
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0 ()
bmAttributes 192 (Self-powered)
MaxPower 10 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 64
bInterval 0 ms
bRefresh 0
bSynchAddress 0
<endpoint 1>
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 (out 0x02)
bmAttributes 2 (bulk)
wMaxPacketSize 64
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 is not a GL841 (reg 0x38 != 0x15)
checking for ICM532B ...
this is not a ICM532B (check 2, bcdUSB = 0x200)
<Couldn't determine the type of the USB chip>
found USB scanner (vendor=0x04a9 [Canon], product=0x220f [Scanner]) at libusb:001:002
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.