[sanei_debug] Setting debug level of snapscan to 255.
[snapscan] sane_snapscan_init
[snapscan] sane_snapscan_init: Snapscan backend version 1.4.42
[snapscan] add_usb_device(/dev/usbscanner0 bus=usb)
[snapscan] add_usb_device: Detected (kind of) an USB device
[snapscan] snapscani_usb_open(/dev/usbscanner0)
[snapscan] add_usb_device: error opening device /dev/usbscanner0: Invalid argument
[snapscan] add_usb_device(libusb:002:004)
[snapscan] add_usb_device: Detected (kind of) an USB device
[snapscan] snapscani_usb_open(libusb:002:004)
[snapscan] add_usb_device: Checking if 0x04a5 is a supported USB vendor ID
[snapscan] snapscani_check_device()
[snapscan] mini_inquiry
[snapscan] snapscan_cmd
[snapscan] snapscani_usb_cmd(0,0xbf933612,6,0xbf9335ee,0xbf933618 (36))
[snapscan] atomic_usb_cmd(0,0xbf933612,6,0xbf9335ee,0xbf933618 (36))
[snapscan] usb_cmd(0,0xbf933612,6,0xbf9335ee,0xbf933618 (36))
[snapscan] usb_cmd: cmdlen=6, datalen=0
[snapscan] usb_write: writing:  0x12 0x00 0x00 0x00 0x24 0x00
[snapscan] Written 6 bytes
[snapscan] usb_read: reading:  0xf9 0x00 0x00 0x00 0x00 0x00 0x00 0x00
[snapscan] Read 8 bytes
[snapscan] usb_read: reading:  0x06 0x00 0x02 0x02 0x57 0x00 0x00 0x00 0x43 0x6f ...
[snapscan] Read 36 bytes
[snapscan] usb_read: reading:  0xfb 0x00 0x00 0x00 0x00 0x00 0x00 0x00
[snapscan] Read 8 bytes
[snapscan] snapscani_check_device: Is vendor "Color" model "FlatbedScanner42" a supported scanner?
[snapscan] snapscani_get_model_id(FlatbedScanner42, 0, 2)
[snapscan] snapscani_get_model_id: looking up scanner for ID 0x04a5,0x20f8.
[snapscan] snapscani_check_device: Autodetected driver: Unknown
[snapscan] snapscani_usb_close(0)
[snapscan] 1st read 3 write 1
[snapscan] snapscani_usb_cmd(0,0xbf93360e,6,0x0,0x0 (0))
[snapscan] atomic_usb_cmd(0,0xbf93360e,6,0x0,0x0 (0))
[snapscan] usb_cmd(0,0xbf93360e,6,0x0,0x0 (0))
[snapscan] usb_cmd: cmdlen=6, datalen=0
[snapscan] usb_write: writing:  0x00 0x00 0x00 0x00 0x00 0x00
[snapscan] Written 6 bytes
[snapscan] usb_read: reading:  0xfb 0x00 0x00 0x00 0x00 0x00 0x00 0x00
[snapscan] Read 8 bytes
[snapscan] 2nd read 4 write 2
[snapscan] snapscani_init_device_structure()
[snapscan] sane_snapscan_get_devices (0xbf9347f8, 0)
[snapscan] sane_snapscan_open (libusb:002:004, 0xbf9347f8)
[snapscan] find_device
[snapscan] sane_snapscan_open: Allocating 64512 bytes as scanner buffer.
[snapscan] sane_snapscan_open: allocated scanner structure at 0x807d6d0
[snapscan] open_scanner
[snapscan] snapscani_usb_open(libusb:002:004)
[snapscan] sane_snapscan_open: waiting for scanner to warm up.
[snapscan] wait_scanner_ready
[snapscan] test_unit_ready
[snapscan] snapscan_cmd
[snapscan] snapscani_usb_cmd(0,0xbf934606,6,0x0,0x0 (0))
[snapscan] atomic_usb_cmd(0,0xbf934606,6,0x0,0x0 (0))
[snapscan] usb_cmd(0,0xbf934606,6,0x0,0x0 (0))
[snapscan] usb_cmd: cmdlen=6, datalen=0
[snapscan] usb_write: writing:  0x00 0x00 0x00 0x00 0x00 0x00
[snapscan] Written 6 bytes
[snapscan] usb_read: reading:  0xfb 0x00 0x00 0x00 0x00 0x00 0x00 0x00
[snapscan] Read 8 bytes
[snapscan] sane_snapscan_open: performing scanner self test.
[snapscan] send_diagnostic
[snapscan] snapscan_cmd
[snapscan] snapscani_usb_cmd(0,0xbf93478e,6,0x0,0x0 (0))
[snapscan] atomic_usb_cmd(0,0xbf93478e,6,0x0,0x0 (0))
[snapscan] usb_cmd(0,0xbf93478e,6,0x0,0x0 (0))
[snapscan] sane_snapscan_open: self test passed.
[snapscan] inquiry
[snapscan] snapscan_cmd
[snapscan] snapscani_usb_cmd(0,0x807d700,6,0x807de60,0x807d810 (120))
[snapscan] atomic_usb_cmd(0,0x807d700,6,0x807de60,0x807d810 (120))
[snapscan] usb_cmd(0,0x807d700,6,0x807de60,0x807d810 (120))
[snapscan] usb_cmd: cmdlen=6, datalen=0
[snapscan] usb_write: writing:  0x12 0x00 0x00 0x00 0x78 0x00
[snapscan] Written 6 bytes
[snapscan] usb_read: reading:  0xf9 0x00 0x00 0x00 0x00 0x00 0x00 0x00
[snapscan] Read 8 bytes
[snapscan] usb_read Only 36 bytes read
[snapscan] usb_read: reading:  0x06 0x00 0x02 0x02 0x57 0x00 0x00 0x00 0x43 0x6f ...
[snapscan] Read 36 bytes
[snapscan] inquiry: snapscan_cmd command failed: Error during device I/O
[snapscan] sane_snapscan_open: error in inquiry command: Error during device I/O
scanimage: open of device snapscan:libusb:002:004 failed: Error during device I/O
[snapscan] sane_snapscan_exit