[sane-devel] PIXMA TS8300 Series not working

Yoann Le Montagner yo35 at melix.net
Sun Oct 4 17:31:34 BST 2020


Hi,

I've a brand new PIxma TS8350 scanner, that is -- unfortunately -- not 
recognized by SANE. I've seen on the device list page that testers are 
needed for this device, so I would be happy to test what need to be 
tested in order to have this thing work properly.

Please find attached the output of command 'sudo sane-find-scanner -v -v'.

Regards,

Y.


-------------- next part --------------
This is sane-find-scanner from sane-backends 1.0.29

  # 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.

searching for SCSI scanners:
checking /dev/scanner... failed to open (Invalid argument)
checking /dev/sg0... failed to open (Invalid argument)
checking /dev/sg1... failed to open (Invalid argument)
checking /dev/sg2... failed to open (Invalid argument)
checking /dev/sg3... failed to open (Invalid argument)
checking /dev/sg4... failed to open (Invalid argument)
checking /dev/sg5... failed to open (Invalid argument)
checking /dev/sg6... failed to open (Invalid argument)
checking /dev/sg7... failed to open (Invalid argument)
checking /dev/sg8... failed to open (Invalid argument)
checking /dev/sg9... failed to open (Invalid argument)
checking /dev/sga... failed to open (Invalid argument)
checking /dev/sgb... failed to open (Invalid argument)
checking /dev/sgc... failed to open (Invalid argument)
checking /dev/sgd... failed to open (Invalid argument)
checking /dev/sge... failed to open (Invalid argument)
checking /dev/sgf... failed to open (Invalid argument)
checking /dev/sgg... failed to open (Invalid argument)
checking /dev/sgh... failed to open (Invalid argument)
checking /dev/sgi... failed to open (Invalid argument)
checking /dev/sgj... failed to open (Invalid argument)
checking /dev/sgk... failed to open (Invalid argument)
checking /dev/sgl... failed to open (Invalid argument)
checking /dev/sgm... failed to open (Invalid argument)
checking /dev/sgn... failed to open (Invalid argument)
checking /dev/sgo... failed to open (Invalid argument)
checking /dev/sgp... failed to open (Invalid argument)
checking /dev/sgq... failed to open (Invalid argument)
checking /dev/sgr... failed to open (Invalid argument)
checking /dev/sgs... failed to open (Invalid argument)
checking /dev/sgt... failed to open (Invalid argument)
checking /dev/sgu... failed to open (Invalid argument)
checking /dev/sgv... failed to open (Invalid argument)
checking /dev/sgw... failed to open (Invalid argument)
checking /dev/sgx... failed to open (Invalid argument)
checking /dev/sgy... failed to open (Invalid argument)
checking /dev/sgz... failed to open (Invalid argument)
  # No SCSI scanners found. If you expected something different, make sure that
  # you have loaded a kernel SCSI driver for your SCSI adapter.

searching for USB scanners:
checking /dev/usb/scanner... failed to open (Invalid argument)
checking /dev/usb/scanner0... failed to open (Invalid argument)
checking /dev/usb/scanner1... failed to open (Invalid argument)
checking /dev/usb/scanner2... failed to open (Invalid argument)
checking /dev/usb/scanner3... failed to open (Invalid argument)
checking /dev/usb/scanner4... failed to open (Invalid argument)
checking /dev/usb/scanner5... failed to open (Invalid argument)
checking /dev/usb/scanner5... failed to open (Invalid argument)
checking /dev/usb/scanner7... failed to open (Invalid argument)
checking /dev/usb/scanner8... failed to open (Invalid argument)
checking /dev/usb/scanner9... failed to open (Invalid argument)
checking /dev/usb/scanner10... failed to open (Invalid argument)
checking /dev/usb/scanner11... failed to open (Invalid argument)
checking /dev/usb/scanner12... failed to open (Invalid argument)
checking /dev/usb/scanner13... failed to open (Invalid argument)
checking /dev/usb/scanner14... failed to open (Invalid argument)
checking /dev/usb/scanner15... failed to open (Invalid argument)
checking /dev/usbscanner... failed to open (Invalid argument)
checking /dev/usbscanner0... failed to open (Invalid argument)
checking /dev/usbscanner1... failed to open (Invalid argument)
checking /dev/usbscanner2... failed to open (Invalid argument)
checking /dev/usbscanner3... failed to open (Invalid argument)
checking /dev/usbscanner4... failed to open (Invalid argument)
checking /dev/usbscanner5... failed to open (Invalid argument)
checking /dev/usbscanner6... failed to open (Invalid argument)
checking /dev/usbscanner7... failed to open (Invalid argument)
checking /dev/usbscanner8... failed to open (Invalid argument)
checking /dev/usbscanner9... failed to open (Invalid argument)
checking /dev/usbscanner10... failed to open (Invalid argument)
checking /dev/usbscanner11... failed to open (Invalid argument)
checking /dev/usbscanner12... failed to open (Invalid argument)
checking /dev/usbscanner13... failed to open (Invalid argument)
checking /dev/usbscanner14... failed to open (Invalid argument)
checking /dev/usbscanner15... failed to open (Invalid argument)
trying libusb:

<device descriptor of 0x8087/0x8001 at 002:002>
bLength               18
bDescriptorType       1
bcdUSB                2.00
bDeviceClass          9
bDeviceSubClass       0
bDeviceProtocol       1
bMaxPacketSize0       64
idVendor              0x8087
idProduct             0x8001
bcdDevice             0.00
iManufacturer         0 ()
iProduct              0 ()
iSerialNumber         0 ()
bNumConfigurations    1
 <configuration 0>
 bLength              9
 bDescriptorType      2
 wTotalLength         25
 bNumInterfaces       1
 bConfigurationValue  1
 iConfiguration       0 ()
 bmAttributes         224 (Self-poweredRemote Wakeup)
 MaxPower             0 mA
  <interface 0>
   <altsetting 0>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   0
   bAlternateSetting  0
   bNumEndpoints      1
   bInterfaceClass    9
   bInterfaceSubClass 0
   bInterfaceProtocol 0
   iInterface         0 ()
    <endpoint 0>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x81 (in 0x01)
    bmAttributes      3 (interrupt)
    wMaxPacketSize    2
    bInterval         12 ms
    bRefresh          0
    bSynchAddress     0

<device descriptor of 0x1d6b/0x0002 at 002:001 (Linux 5.4.0-48-generic ehci_hcd EHCI Host Controller)>
bLength               18
bDescriptorType       1
bcdUSB                2.00
bDeviceClass          9
bDeviceSubClass       0
bDeviceProtocol       0
bMaxPacketSize0       64
idVendor              0x1D6B
idProduct             0x0002
bcdDevice             5.04
iManufacturer         3 (Linux 5.4.0-48-generic ehci_hcd)
iProduct              2 (EHCI Host Controller)
iSerialNumber         1 (0000:00:1d.0)
bNumConfigurations    1
 <configuration 0>
 bLength              9
 bDescriptorType      2
 wTotalLength         25
 bNumInterfaces       1
 bConfigurationValue  1
 iConfiguration       0 ()
 bmAttributes         224 (Self-poweredRemote Wakeup)
 MaxPower             0 mA
  <interface 0>
   <altsetting 0>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   0
   bAlternateSetting  0
   bNumEndpoints      1
   bInterfaceClass    9
   bInterfaceSubClass 0
   bInterfaceProtocol 0
   iInterface         0 ()
    <endpoint 0>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x81 (in 0x01)
    bmAttributes      3 (interrupt)
    wMaxPacketSize    4
    bInterval         12 ms
    bRefresh          0
    bSynchAddress     0

<device descriptor of 0x8087/0x8009 at 001:002>
bLength               18
bDescriptorType       1
bcdUSB                2.00
bDeviceClass          9
bDeviceSubClass       0
bDeviceProtocol       1
bMaxPacketSize0       64
idVendor              0x8087
idProduct             0x8009
bcdDevice             0.00
iManufacturer         0 ()
iProduct              0 ()
iSerialNumber         0 ()
bNumConfigurations    1
 <configuration 0>
 bLength              9
 bDescriptorType      2
 wTotalLength         25
 bNumInterfaces       1
 bConfigurationValue  1
 iConfiguration       0 ()
 bmAttributes         224 (Self-poweredRemote Wakeup)
 MaxPower             0 mA
  <interface 0>
   <altsetting 0>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   0
   bAlternateSetting  0
   bNumEndpoints      1
   bInterfaceClass    9
   bInterfaceSubClass 0
   bInterfaceProtocol 0
   iInterface         0 ()
    <endpoint 0>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x81 (in 0x01)
    bmAttributes      3 (interrupt)
    wMaxPacketSize    1
    bInterval         12 ms
    bRefresh          0
    bSynchAddress     0

<device descriptor of 0x1d6b/0x0002 at 001:001 (Linux 5.4.0-48-generic ehci_hcd EHCI Host Controller)>
bLength               18
bDescriptorType       1
bcdUSB                2.00
bDeviceClass          9
bDeviceSubClass       0
bDeviceProtocol       0
bMaxPacketSize0       64
idVendor              0x1D6B
idProduct             0x0002
bcdDevice             5.04
iManufacturer         3 (Linux 5.4.0-48-generic ehci_hcd)
iProduct              2 (EHCI Host Controller)
iSerialNumber         1 (0000:00:1a.0)
bNumConfigurations    1
 <configuration 0>
 bLength              9
 bDescriptorType      2
 wTotalLength         25
 bNumInterfaces       1
 bConfigurationValue  1
 iConfiguration       0 ()
 bmAttributes         224 (Self-poweredRemote Wakeup)
 MaxPower             0 mA
  <interface 0>
   <altsetting 0>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   0
   bAlternateSetting  0
   bNumEndpoints      1
   bInterfaceClass    9
   bInterfaceSubClass 0
   bInterfaceProtocol 0
   iInterface         0 ()
    <endpoint 0>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x81 (in 0x01)
    bmAttributes      3 (interrupt)
    wMaxPacketSize    4
    bInterval         12 ms
    bRefresh          0
    bSynchAddress     0

<device descriptor of 0x0451/0x8340 at 004:002>
bLength               18
bDescriptorType       1
bcdUSB                3.10
bDeviceClass          9
bDeviceSubClass       0
bDeviceProtocol       3
bMaxPacketSize0       9
idVendor              0x0451
idProduct             0x8340
bcdDevice             1.00
iManufacturer         0 ()
iProduct              0 ()
iSerialNumber         0 ()
bNumConfigurations    1
 <configuration 0>
 bLength              9
 bDescriptorType      2
 wTotalLength         31
 bNumInterfaces       1
 bConfigurationValue  1
 iConfiguration       0 ()
 bmAttributes         224 (Self-poweredRemote Wakeup)
 MaxPower             0 mA
  <interface 0>
   <altsetting 0>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   0
   bAlternateSetting  0
   bNumEndpoints      1
   bInterfaceClass    9
   bInterfaceSubClass 0
   bInterfaceProtocol 0
   iInterface         0 ()
    <endpoint 0>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x81 (in 0x01)
    bmAttributes      19 (interrupt)
    wMaxPacketSize    2
    bInterval         8 ms
    bRefresh          0
    bSynchAddress     0

<device descriptor of 0x1d6b/0x0003 at 004:001 (Linux 5.4.0-48-generic xhci-hcd xHCI Host Controller)>
bLength               18
bDescriptorType       1
bcdUSB                3.00
bDeviceClass          9
bDeviceSubClass       0
bDeviceProtocol       3
bMaxPacketSize0       9
idVendor              0x1D6B
idProduct             0x0003
bcdDevice             5.04
iManufacturer         3 (Linux 5.4.0-48-generic xhci-hcd)
iProduct              2 (xHCI Host Controller)
iSerialNumber         1 (0000:00:14.0)
bNumConfigurations    1
 <configuration 0>
 bLength              9
 bDescriptorType      2
 wTotalLength         31
 bNumInterfaces       1
 bConfigurationValue  1
 iConfiguration       0 ()
 bmAttributes         224 (Self-poweredRemote Wakeup)
 MaxPower             0 mA
  <interface 0>
   <altsetting 0>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   0
   bAlternateSetting  0
   bNumEndpoints      1
   bInterfaceClass    9
   bInterfaceSubClass 0
   bInterfaceProtocol 0
   iInterface         0 ()
    <endpoint 0>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x81 (in 0x01)
    bmAttributes      3 (interrupt)
    wMaxPacketSize    4
    bInterval         12 ms
    bRefresh          0
    bSynchAddress     0

<device descriptor of 0x0451/0x82ff at 003:007>
bLength               18
bDescriptorType       1
bcdUSB                2.01
bDeviceClass          0
bDeviceSubClass       0
bDeviceProtocol       0
bMaxPacketSize0       64
idVendor              0x0451
idProduct             0x82FF
bcdDevice             1.00
iManufacturer         0 ()
iProduct              0 ()
could not fetch string descriptor: Pipe error
iSerialNumber         1 ()
bNumConfigurations    1
 <configuration 0>
 bLength              9
 bDescriptorType      2
 wTotalLength         34
 bNumInterfaces       1
 bConfigurationValue  1
 iConfiguration       0 ()
 bmAttributes         192 (Self-powered)
 MaxPower             0 mA
  <interface 0>
   <altsetting 0>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   0
   bAlternateSetting  0
   bNumEndpoints      1
   bInterfaceClass    3
   bInterfaceSubClass 0
   bInterfaceProtocol 0
   iInterface         0 ()
    <endpoint 0>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x81 (in 0x01)
    bmAttributes      3 (interrupt)
    wMaxPacketSize    64
    bInterval         4 ms
    bRefresh          0
    bSynchAddress     0

<device descriptor of 0x046d/0xc52b at 003:006 (Logitech USB Receiver)>
bLength               18
bDescriptorType       1
bcdUSB                2.00
bDeviceClass          0
bDeviceSubClass       0
bDeviceProtocol       0
bMaxPacketSize0       8
idVendor              0x046D
idProduct             0xC52B
bcdDevice             18.11
iManufacturer         1 (Logitech)
iProduct              2 (USB Receiver)
iSerialNumber         0 ()
bNumConfigurations    1
 <configuration 0>
 bLength              9
 bDescriptorType      2
 wTotalLength         84
 bNumInterfaces       3
 bConfigurationValue  1
 iConfiguration       4 (RQR12.11_B0032)
 bmAttributes         160 (Remote Wakeup)
 MaxPower             98 mA
  <interface 0>
   <altsetting 0>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   0
   bAlternateSetting  0
   bNumEndpoints      1
   bInterfaceClass    3
   bInterfaceSubClass 1
   bInterfaceProtocol 1
   iInterface         0 ()
    <endpoint 0>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x81 (in 0x01)
    bmAttributes      3 (interrupt)
    wMaxPacketSize    8
    bInterval         8 ms
    bRefresh          0
    bSynchAddress     0
  <interface 1>
   <altsetting 0>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   1
   bAlternateSetting  0
   bNumEndpoints      1
   bInterfaceClass    3
   bInterfaceSubClass 1
   bInterfaceProtocol 2
   iInterface         0 ()
    <endpoint 0>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x82 (in 0x02)
    bmAttributes      3 (interrupt)
    wMaxPacketSize    8
    bInterval         2 ms
    bRefresh          0
    bSynchAddress     0
  <interface 2>
   <altsetting 0>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   2
   bAlternateSetting  0
   bNumEndpoints      1
   bInterfaceClass    3
   bInterfaceSubClass 0
   bInterfaceProtocol 0
   iInterface         0 ()
    <endpoint 0>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x83 (in 0x03)
    bmAttributes      3 (interrupt)
    wMaxPacketSize    32
    bInterval         2 ms
    bRefresh          0
    bSynchAddress     0

<device descriptor of 0x0451/0x8342 at 003:004>
bLength               18
bDescriptorType       1
bcdUSB                2.10
bDeviceClass          9
bDeviceSubClass       0
bDeviceProtocol       2
bMaxPacketSize0       64
idVendor              0x0451
idProduct             0x8342
bcdDevice             1.00
iManufacturer         0 ()
iProduct              0 ()
could not fetch string descriptor: Pipe error
iSerialNumber         1 ()
bNumConfigurations    1
 <configuration 0>
 bLength              9
 bDescriptorType      2
 wTotalLength         41
 bNumInterfaces       1
 bConfigurationValue  1
 iConfiguration       0 ()
 bmAttributes         224 (Self-poweredRemote Wakeup)
 MaxPower             0 mA
  <interface 0>
   <altsetting 0>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   0
   bAlternateSetting  0
   bNumEndpoints      1
   bInterfaceClass    9
   bInterfaceSubClass 0
   bInterfaceProtocol 1
   iInterface         0 ()
    <endpoint 0>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x81 (in 0x01)
    bmAttributes      3 (interrupt)
    wMaxPacketSize    1
    bInterval         12 ms
    bRefresh          0
    bSynchAddress     0
   <altsetting 1>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   0
   bAlternateSetting  1
   bNumEndpoints      1
   bInterfaceClass    9
   bInterfaceSubClass 0
   bInterfaceProtocol 2
   iInterface         0 ()
    <endpoint 0>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x81 (in 0x01)
    bmAttributes      3 (interrupt)
    wMaxPacketSize    1
    bInterval         12 ms
    bRefresh          0
    bSynchAddress     0

<device descriptor of 0x04a9/0x1890 at 003:013 (Canon TS8300 series)>
bLength               18
bDescriptorType       1
bcdUSB                2.00
bDeviceClass          0
bDeviceSubClass       0
bDeviceProtocol       0
bMaxPacketSize0       64
idVendor              0x04A9
idProduct             0x1890
bcdDevice             1.02
iManufacturer         1 (Canon)
iProduct              2 (TS8300 series)
iSerialNumber         3 (21260F)
bNumConfigurations    1
 <configuration 0>
 bLength              9
 bDescriptorType      2
 wTotalLength         223
 bNumInterfaces       7
 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  0x07 (out 0x07)
    bmAttributes      2 (bulk)
    wMaxPacketSize    512
    bInterval         0 ms
    bRefresh          0
    bSynchAddress     0
    <endpoint 1>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x88 (in 0x08)
    bmAttributes      2 (bulk)
    wMaxPacketSize    512
    bInterval         0 ms
    bRefresh          0
    bSynchAddress     0
    <endpoint 2>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x89 (in 0x09)
    bmAttributes      3 (interrupt)
    wMaxPacketSize    64
    bInterval         11 ms
    bRefresh          0
    bSynchAddress     0
  <interface 1>
   <altsetting 0>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   1
   bAlternateSetting  0
   bNumEndpoints      2
   bInterfaceClass    7
   bInterfaceSubClass 1
   bInterfaceProtocol 2
   iInterface         0 ()
    <endpoint 0>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x01 (out 0x01)
    bmAttributes      2 (bulk)
    wMaxPacketSize    512
    bInterval         0 ms
    bRefresh          0
    bSynchAddress     0
    <endpoint 1>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x82 (in 0x02)
    bmAttributes      2 (bulk)
    wMaxPacketSize    512
    bInterval         0 ms
    bRefresh          0
    bSynchAddress     0
  <interface 2>
   <altsetting 0>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   2
   bAlternateSetting  0
   bNumEndpoints      2
   bInterfaceClass    8
   bInterfaceSubClass 6
   bInterfaceProtocol 80
   iInterface         0 ()
    <endpoint 0>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x84 (in 0x04)
    bmAttributes      2 (bulk)
    wMaxPacketSize    512
    bInterval         0 ms
    bRefresh          0
    bSynchAddress     0
    <endpoint 1>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x05 (out 0x05)
    bmAttributes      2 (bulk)
    wMaxPacketSize    512
    bInterval         0 ms
    bRefresh          0
    bSynchAddress     0
  <interface 3>
   <altsetting 0>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   3
   bAlternateSetting  0
   bNumEndpoints      2
   bInterfaceClass    255
   bInterfaceSubClass 255
   bInterfaceProtocol 255
   iInterface         0 ()
    <endpoint 0>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x0C (out 0x0C)
    bmAttributes      2 (bulk)
    wMaxPacketSize    512
    bInterval         0 ms
    bRefresh          0
    bSynchAddress     0
    <endpoint 1>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x8D (in 0x0D)
    bmAttributes      2 (bulk)
    wMaxPacketSize    512
    bInterval         0 ms
    bRefresh          0
    bSynchAddress     0
   <altsetting 1>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   3
   bAlternateSetting  1
   bNumEndpoints      2
   bInterfaceClass    7
   bInterfaceSubClass 1
   bInterfaceProtocol 4
   iInterface         0 ()
    <endpoint 0>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x0C (out 0x0C)
    bmAttributes      2 (bulk)
    wMaxPacketSize    512
    bInterval         0 ms
    bRefresh          0
    bSynchAddress     0
    <endpoint 1>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x8D (in 0x0D)
    bmAttributes      2 (bulk)
    wMaxPacketSize    512
    bInterval         0 ms
    bRefresh          0
    bSynchAddress     0
  <interface 4>
   <altsetting 0>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   4
   bAlternateSetting  0
   bNumEndpoints      2
   bInterfaceClass    255
   bInterfaceSubClass 255
   bInterfaceProtocol 255
   iInterface         0 ()
    <endpoint 0>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x0E (out 0x0E)
    bmAttributes      2 (bulk)
    wMaxPacketSize    512
    bInterval         0 ms
    bRefresh          0
    bSynchAddress     0
    <endpoint 1>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x8F (in 0x0F)
    bmAttributes      2 (bulk)
    wMaxPacketSize    512
    bInterval         0 ms
    bRefresh          0
    bSynchAddress     0
   <altsetting 1>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   4
   bAlternateSetting  1
   bNumEndpoints      2
   bInterfaceClass    7
   bInterfaceSubClass 1
   bInterfaceProtocol 4
   iInterface         0 ()
    <endpoint 0>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x0E (out 0x0E)
    bmAttributes      2 (bulk)
    wMaxPacketSize    512
    bInterval         0 ms
    bRefresh          0
    bSynchAddress     0
    <endpoint 1>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x8F (in 0x0F)
    bmAttributes      2 (bulk)
    wMaxPacketSize    512
    bInterval         0 ms
    bRefresh          0
    bSynchAddress     0
  <interface 5>
   <altsetting 0>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   5
   bAlternateSetting  0
   bNumEndpoints      2
   bInterfaceClass    255
   bInterfaceSubClass 1
   bInterfaceProtocol 1
   iInterface         0 ()
    <endpoint 0>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x03 (out 0x03)
    bmAttributes      2 (bulk)
    wMaxPacketSize    512
    bInterval         0 ms
    bRefresh          0
    bSynchAddress     0
    <endpoint 1>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x86 (in 0x06)
    bmAttributes      2 (bulk)
    wMaxPacketSize    512
    bInterval         0 ms
    bRefresh          0
    bSynchAddress     0
  <interface 6>
   <altsetting 0>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   6
   bAlternateSetting  0
   bNumEndpoints      2
   bInterfaceClass    255
   bInterfaceSubClass 1
   bInterfaceProtocol 1
   iInterface         0 ()
    <endpoint 0>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x0A (out 0x0A)
    bmAttributes      2 (bulk)
    wMaxPacketSize    512
    bInterval         0 ms
    bRefresh          0
    bSynchAddress     0
    <endpoint 1>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x8B (in 0x0B)
    bmAttributes      2 (bulk)
    wMaxPacketSize    512
    bInterval         0 ms
    bRefresh          0
    bSynchAddress     0

<trying to find out which USB chip is used>
could not claim USB device interface
found USB scanner (vendor=0x04a9 [Canon], product=0x1890 [TS8300 series]) at libusb:003:013

<device descriptor of 0x046d/0xc328 at 003:005 (Logitech USB Keyboard)>
bLength               18
bDescriptorType       1
bcdUSB                1.10
bDeviceClass          0
bDeviceSubClass       0
bDeviceProtocol       0
bMaxPacketSize0       8
idVendor              0x046D
idProduct             0xC328
bcdDevice             134.00
iManufacturer         1 (Logitech)
iProduct              2 (USB Keyboard)
iSerialNumber         0 ()
bNumConfigurations    1
 <configuration 0>
 bLength              9
 bDescriptorType      2
 wTotalLength         59
 bNumInterfaces       2
 bConfigurationValue  1
 iConfiguration       4 (U86.00_B0003)
 bmAttributes         160 (Remote Wakeup)
 MaxPower             98 mA
  <interface 0>
   <altsetting 0>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   0
   bAlternateSetting  0
   bNumEndpoints      1
   bInterfaceClass    3
   bInterfaceSubClass 1
   bInterfaceProtocol 1
   iInterface         0 ()
    <endpoint 0>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x81 (in 0x01)
    bmAttributes      3 (interrupt)
    wMaxPacketSize    8
    bInterval         10 ms
    bRefresh          0
    bSynchAddress     0
  <interface 1>
   <altsetting 0>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   1
   bAlternateSetting  0
   bNumEndpoints      1
   bInterfaceClass    3
   bInterfaceSubClass 0
   bInterfaceProtocol 0
   iInterface         0 ()
    <endpoint 0>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x82 (in 0x02)
    bmAttributes      3 (interrupt)
    wMaxPacketSize    3
    bInterval         10 ms
    bRefresh          0
    bSynchAddress     0

<device descriptor of 0x046d/0x0825 at 003:002>
bLength               18
bDescriptorType       1
bcdUSB                2.00
bDeviceClass          239
bDeviceSubClass       2
bDeviceProtocol       1
bMaxPacketSize0       64
idVendor              0x046D
idProduct             0x0825
bcdDevice             0.10
iManufacturer         0 ()
iProduct              0 ()
iSerialNumber         2 (5EC3E6C0)
bNumConfigurations    1
 <configuration 0>
 bLength              9
 bDescriptorType      2
 wTotalLength         2469
 bNumInterfaces       4
 bConfigurationValue  1
 iConfiguration       0 ()
 bmAttributes         128 ()
 MaxPower             500 mA
  <interface 0>
   <altsetting 0>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   0
   bAlternateSetting  0
   bNumEndpoints      1
   bInterfaceClass    14
   bInterfaceSubClass 1
   bInterfaceProtocol 0
   iInterface         0 ()
    <endpoint 0>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x87 (in 0x07)
    bmAttributes      3 (interrupt)
    wMaxPacketSize    16
    bInterval         8 ms
    bRefresh          0
    bSynchAddress     0
  <interface 1>
   <altsetting 0>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   1
   bAlternateSetting  0
   bNumEndpoints      0
   bInterfaceClass    14
   bInterfaceSubClass 2
   bInterfaceProtocol 0
   iInterface         0 ()
   <altsetting 1>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   1
   bAlternateSetting  1
   bNumEndpoints      1
   bInterfaceClass    14
   bInterfaceSubClass 2
   bInterfaceProtocol 0
   iInterface         0 ()
    <endpoint 0>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x81 (in 0x01)
    bmAttributes      5 (isochronous)
    wMaxPacketSize    192
    bInterval         1 ms
    bRefresh          0
    bSynchAddress     0
   <altsetting 2>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   1
   bAlternateSetting  2
   bNumEndpoints      1
   bInterfaceClass    14
   bInterfaceSubClass 2
   bInterfaceProtocol 0
   iInterface         0 ()
    <endpoint 0>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x81 (in 0x01)
    bmAttributes      5 (isochronous)
    wMaxPacketSize    384
    bInterval         1 ms
    bRefresh          0
    bSynchAddress     0
   <altsetting 3>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   1
   bAlternateSetting  3
   bNumEndpoints      1
   bInterfaceClass    14
   bInterfaceSubClass 2
   bInterfaceProtocol 0
   iInterface         0 ()
    <endpoint 0>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x81 (in 0x01)
    bmAttributes      5 (isochronous)
    wMaxPacketSize    512
    bInterval         1 ms
    bRefresh          0
    bSynchAddress     0
   <altsetting 4>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   1
   bAlternateSetting  4
   bNumEndpoints      1
   bInterfaceClass    14
   bInterfaceSubClass 2
   bInterfaceProtocol 0
   iInterface         0 ()
    <endpoint 0>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x81 (in 0x01)
    bmAttributes      5 (isochronous)
    wMaxPacketSize    640
    bInterval         1 ms
    bRefresh          0
    bSynchAddress     0
   <altsetting 5>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   1
   bAlternateSetting  5
   bNumEndpoints      1
   bInterfaceClass    14
   bInterfaceSubClass 2
   bInterfaceProtocol 0
   iInterface         0 ()
    <endpoint 0>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x81 (in 0x01)
    bmAttributes      5 (isochronous)
    wMaxPacketSize    800
    bInterval         1 ms
    bRefresh          0
    bSynchAddress     0
   <altsetting 6>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   1
   bAlternateSetting  6
   bNumEndpoints      1
   bInterfaceClass    14
   bInterfaceSubClass 2
   bInterfaceProtocol 0
   iInterface         0 ()
    <endpoint 0>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x81 (in 0x01)
    bmAttributes      5 (isochronous)
    wMaxPacketSize    944
    bInterval         1 ms
    bRefresh          0
    bSynchAddress     0
   <altsetting 7>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   1
   bAlternateSetting  7
   bNumEndpoints      1
   bInterfaceClass    14
   bInterfaceSubClass 2
   bInterfaceProtocol 0
   iInterface         0 ()
    <endpoint 0>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x81 (in 0x01)
    bmAttributes      5 (isochronous)
    wMaxPacketSize    2688
    bInterval         1 ms
    bRefresh          0
    bSynchAddress     0
   <altsetting 8>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   1
   bAlternateSetting  8
   bNumEndpoints      1
   bInterfaceClass    14
   bInterfaceSubClass 2
   bInterfaceProtocol 0
   iInterface         0 ()
    <endpoint 0>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x81 (in 0x01)
    bmAttributes      5 (isochronous)
    wMaxPacketSize    2848
    bInterval         1 ms
    bRefresh          0
    bSynchAddress     0
   <altsetting 9>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   1
   bAlternateSetting  9
   bNumEndpoints      1
   bInterfaceClass    14
   bInterfaceSubClass 2
   bInterfaceProtocol 0
   iInterface         0 ()
    <endpoint 0>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x81 (in 0x01)
    bmAttributes      5 (isochronous)
    wMaxPacketSize    3040
    bInterval         1 ms
    bRefresh          0
    bSynchAddress     0
   <altsetting 10>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   1
   bAlternateSetting  10
   bNumEndpoints      1
   bInterfaceClass    14
   bInterfaceSubClass 2
   bInterfaceProtocol 0
   iInterface         0 ()
    <endpoint 0>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x81 (in 0x01)
    bmAttributes      5 (isochronous)
    wMaxPacketSize    4992
    bInterval         1 ms
    bRefresh          0
    bSynchAddress     0
   <altsetting 11>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   1
   bAlternateSetting  11
   bNumEndpoints      1
   bInterfaceClass    14
   bInterfaceSubClass 2
   bInterfaceProtocol 0
   iInterface         0 ()
    <endpoint 0>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x81 (in 0x01)
    bmAttributes      5 (isochronous)
    wMaxPacketSize    5116
    bInterval         1 ms
    bRefresh          0
    bSynchAddress     0
  <interface 2>
   <altsetting 0>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   2
   bAlternateSetting  0
   bNumEndpoints      0
   bInterfaceClass    1
   bInterfaceSubClass 1
   bInterfaceProtocol 0
   iInterface         0 ()
  <interface 3>
   <altsetting 0>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   3
   bAlternateSetting  0
   bNumEndpoints      0
   bInterfaceClass    1
   bInterfaceSubClass 2
   bInterfaceProtocol 0
   iInterface         0 ()
   <altsetting 1>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   3
   bAlternateSetting  1
   bNumEndpoints      1
   bInterfaceClass    1
   bInterfaceSubClass 2
   bInterfaceProtocol 0
   iInterface         0 ()
    <endpoint 0>
    bLength           9
    bDescriptorType   5
    bEndpointAddress  0x86 (in 0x06)
    bmAttributes      5 (isochronous)
    wMaxPacketSize    68
    bInterval         4 ms
    bRefresh          0
    bSynchAddress     0
   <altsetting 2>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   3
   bAlternateSetting  2
   bNumEndpoints      1
   bInterfaceClass    1
   bInterfaceSubClass 2
   bInterfaceProtocol 0
   iInterface         0 ()
    <endpoint 0>
    bLength           9
    bDescriptorType   5
    bEndpointAddress  0x86 (in 0x06)
    bmAttributes      5 (isochronous)
    wMaxPacketSize    100
    bInterval         4 ms
    bRefresh          0
    bSynchAddress     0
   <altsetting 3>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   3
   bAlternateSetting  3
   bNumEndpoints      1
   bInterfaceClass    1
   bInterfaceSubClass 2
   bInterfaceProtocol 0
   iInterface         0 ()
    <endpoint 0>
    bLength           9
    bDescriptorType   5
    bEndpointAddress  0x86 (in 0x06)
    bmAttributes      5 (isochronous)
    wMaxPacketSize    132
    bInterval         4 ms
    bRefresh          0
    bSynchAddress     0
   <altsetting 4>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   3
   bAlternateSetting  4
   bNumEndpoints      1
   bInterfaceClass    1
   bInterfaceSubClass 2
   bInterfaceProtocol 0
   iInterface         0 ()
    <endpoint 0>
    bLength           9
    bDescriptorType   5
    bEndpointAddress  0x86 (in 0x06)
    bmAttributes      5 (isochronous)
    wMaxPacketSize    196
    bInterval         4 ms
    bRefresh          0
    bSynchAddress     0

<device descriptor of 0x1d6b/0x0002 at 003:001 (Linux 5.4.0-48-generic xhci-hcd xHCI Host Controller)>
bLength               18
bDescriptorType       1
bcdUSB                2.00
bDeviceClass          9
bDeviceSubClass       0
bDeviceProtocol       1
bMaxPacketSize0       64
idVendor              0x1D6B
idProduct             0x0002
bcdDevice             5.04
iManufacturer         3 (Linux 5.4.0-48-generic xhci-hcd)
iProduct              2 (xHCI Host Controller)
iSerialNumber         1 (0000:00:14.0)
bNumConfigurations    1
 <configuration 0>
 bLength              9
 bDescriptorType      2
 wTotalLength         25
 bNumInterfaces       1
 bConfigurationValue  1
 iConfiguration       0 ()
 bmAttributes         224 (Self-poweredRemote Wakeup)
 MaxPower             0 mA
  <interface 0>
   <altsetting 0>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   0
   bAlternateSetting  0
   bNumEndpoints      1
   bInterfaceClass    9
   bInterfaceSubClass 0
   bInterfaceProtocol 0
   iInterface         0 ()
    <endpoint 0>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x81 (in 0x01)
    bmAttributes      3 (interrupt)
    wMaxPacketSize    4
    bInterval         12 ms
    bRefresh          0
    bSynchAddress     0
  # 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.
done


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