# Scanners not supported by SANE

## Manufacturer and model

BENQ SCANNER 5550

## Bus type

USB

## Vendor ID

0x04a5

## Product ID

0x2211

## Chipset

Detected as RTS8822L-01H.

## Comments

I tried to use settings for hp 3900 (it use this chipset) but no results, my system is Debian lenny with full update.

## Output of /proc/bus/usb/devices or sane-find-scanner -v -v or lsusb -vv

    <device descriptor of 0x04a5/0x2211 at 002:006 ( Color FlatbedScanner39)>
    bLength               18
    bDescriptorType       1
    bcdUSB                2.00
    bDeviceClass          0
    bDeviceSubClass       0
    bDeviceProtocol       0
    bMaxPacketSize0       64
    idVendor              0x04A5
    idProduct             0x2211
    bcdDevice             1.00
    iManufacturer         1 ()
    iProduct              2 (Color FlatbedScanner39)
    iSerialNumber         0 ()
    bNumConfigurations    1
     <configuration 0>
     bLength              9
     bDescriptorType      2
     wTotalLength         39
     bNumInterfaces       1
     bConfigurationValue  1
     iConfiguration       4 (USB SCANNER)
     bmAttributes         224 (Self-poweredRemote Wakeup)
     MaxPower             2 mA
      <interface 0>
       <altsetting 0>
       bLength            9
       bDescriptorType    4
       bInterfaceNumber   0
       bAlternateSetting  0
       bNumEndpoints      3
       bInterfaceClass    255
       bInterfaceSubClass 0
       bInterfaceProtocol 255
       iInterface         5 (Bulk-In, Bulk-Out, Interrupt Interface)
        <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         12 ms
        bRefresh          0
        bSynchAddress     0

    <trying to find out which USB chip is used>
        checking for GT-6801 ...
        this is not a GT-6801 (bDeviceClass = 0)
        checking for GT-6816 ...
        this is not a GT-6816 (bcdUSB = 0x200)
        checking for GT-8911 ...
        this is not a GT-8911 (check 2, bcdUSB = 0x200)
        checking for MA-1017 ...
        this is not a MA-1017 (bDeviceClass = 0, bInterfaceClass = 255)
        checking for MA-1015 ...
        this is not a MA-1015 (bDeviceClass = 0)
        checking for MA-1509 ...
        this is not a MA-1509 (bDeviceClass = 0)
        checking for LM983[1,2,3] ...
        this is not a LM983x (bcdUSB = 0x200)
        checking for GL646 ...
        this is not a GL646 (bDeviceClass = 0, bInterfaceClass = 255)
        checking for GL646_HP ...
        this is not a GL646_HP (bDeviceClass = 0, bInterfaceClass = 255)
        checking for GL660+GL646 ...
        this is not a GL660+GL646 (bDeviceClass = 0, bInterfaceClass = 255)
        checking for GL841 ...
        this is not a GL841 (bDeviceClass = 0, bInterfaceClass = 255)
        checking for ICM532B ...
        this is not a ICM532B (check 1, bDeviceClass = 0, bInterfaceClass = 255)
        checking for PV8630/LM9830 ...
        this is not a PV8630/LM9830 (bcdUSB = 0x200)
        checking for M011 ...
        this is not a M011 (bDeviceClass = 0)
        checking for RTS8822L-01H ...
    <This USB chip looks like a RTS8822L-01H (result from sane-backends 1.0.18-cvs)>

    found USB scanner (vendor=0x04a5 [], product=0x2211 [Color FlatbedScanner39], chip=RTS8822L-01H) at libusb:002:006

# Want to add or correct information?

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.

# Information for Manufacturers

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.

# Links

- General information on how to contribute to SANE, e.g. by writing backends
- Scanner search engine
- SANE homepage

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