Miscellany

scanimage -L
[sanei_debug] Setting debug level of snapscan to 255.
[snapscan] sane_snapscan_init
[snapscan] sane_snapscan_init: Snapscan backend version 1.4.40
[sanei_debug] Setting debug level of sanei_usb to 255.
[sanei_usb] sanei_usb_init: can't stat /dev/usb/: No such file or directory
usb_set_debug: Setting debugging level to 255 (on)
usb_os_find_busses: Found 005
usb_os_find_busses: Found 004
usb_os_find_busses: Found 003
usb_os_find_busses: Found 002
usb_os_find_busses: Found 001
usb_os_find_busses: Skipping non bus directory devices
usb_os_find_devices: Found 001 on 005
usb_os_find_devices: Found 011 on 004
usb_os_find_devices: Found 001 on 004
error obtaining child information: Inappropriate ioctl for device
usb_os_find_devices: Found 005 on 003
skipped 1 class/vendor specific interface descriptors
usb_os_find_devices: Found 004 on 003
skipped 1 class/vendor specific interface descriptors
usb_os_find_devices: Found 001 on 003
error obtaining child information: Inappropriate ioctl for device
error obtaining child information: Inappropriate ioctl for device
usb_os_find_devices: Found 001 on 002
usb_os_find_devices: Found 001 on 001
[sanei_usb] sanei_usb_init: device 0x0000/0x0000 looks like a root hub
[sanei_usb] sanei_usb_init: found libusb device (0x04a5/0x20b0) interface 0  at libusb:004:011
[sanei_usb] sanei_usb_init: device 0x0000/0x0000 looks like a root hub
[sanei_usb] sanei_usb_init: device 0x03f0/0x0324, interface 0 doesn't look like a scanner (0/3)
[sanei_usb] sanei_usb_init: device 0x03f0/0x0324: no suitable interfaces
[sanei_usb] sanei_usb_init: device 0x046d/0xc016, interface 0 doesn't look like a scanner (0/3)
[sanei_usb] sanei_usb_init: device 0x046d/0xc016: no suitable interfaces
[sanei_usb] sanei_usb_init: device 0x0000/0x0000 looks like a root hub
[sanei_usb] sanei_usb_init: device 0x0000/0x0000 looks like a root hub
[sanei_usb] sanei_usb_init: device 0x0000/0x0000 looks like a root hub
[sanei_usb] sanei_usb_init: found 1 devices
[snapscan] add_usb_device(/dev/usb/scanner0 bus=usb)
[snapscan] add_usb_device: Detected (kind of) an USB device
[snapscan] snapscani_usb_open(/dev/usb/scanner0)
[sanei_usb] sanei_usb_open: trying to open device `/dev/usb/scanner0'
[sanei_usb] sanei_usb_open: can't find device `/dev/usb/scanner0' in list
[snapscan] add_usb_device: error opening device /dev/usb/scanner0: Invalid argument
[sanei_usb] sanei_usb_find_devices: vendor=0x04a5, product=0x20b0
[snapscan] add_usb_device(libusb:004:011)
[snapscan] add_usb_device: Detected (kind of) an USB device
[snapscan] snapscani_usb_open(libusb:004:011)
[sanei_usb] sanei_usb_open: trying to open device `libusb:004:011'
[sanei_usb] sanei_usb_open: found bulk-in endpoint (address 1)
[sanei_usb] sanei_usb_open: found bulk-out endpoint (address 2)
[sanei_usb] sanei_usb_open: found interupt-in endpoint (address 3)
[sanei_usb] sanei_usb_open: opened usb device `libusb:004:011' (*dn=0)
[sanei_usb] sanei_usb_get_vendor_product: device 0: vendorID: 0x04a5, productID: 0x20b0
[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(0,0xbfd096f2,6,0xbfd096ce,0xbfd096f8 (36))
[snapscan] atomic_usb_cmd(0,0xbfd096f2,6,0xbfd096ce,0xbfd096f8 (36))
[snapscan] usb_cmd(0,0xbfd096f2,6,0xbfd096ce,0xbfd096f8 (36))
[snapscan] usb_cmd: cmdlen=6, datalen=0
[snapscan] usb_write: writing:  0x12 0x00 0x00 0x00 0x24 0x00
[sanei_usb] sanei_usb_write_bulk: trying to write 6 bytes
[sanei_usb] 0000: 12 00 00 00 24 00                               ....$...........
[sanei_usb] sanei_usb_write_bulk: wanted 6 bytes, wrote 6 bytes
[snapscan] Written 6 bytes
[sanei_usb] sanei_usb_read_bulk: trying to read 8 bytes
[sanei_usb] 0000: F9 00 00 00 00 00 00 00                         ................
[sanei_usb] sanei_usb_read_bulk: wanted 8 bytes, got 8 bytes
[snapscan] usb_read: reading:  0xf9 0x00 0x00 0x00 0x00 0x00 0x00 0x00
[snapscan] Read 8 bytes
[sanei_usb] sanei_usb_read_bulk: trying to read 36 bytes
[sanei_usb] 0000: 06 00 02 02 49 00 00 00 43 6F 6C 6F 72 20 20 20 ....I...Color
[sanei_usb] 0010: 46 6C 61 74 62 65 64 53 63 61 6E 6E 65 72 32 32 FlatbedScanner22
[sanei_usb] 0020: 30 31 32 30                                     0120............
[sanei_usb] sanei_usb_read_bulk: wanted 36 bytes, got 36 bytes
[snapscan] usb_read: reading:  0x06 0x00 0x02 0x02 0x49 0x00 0x00 0x00 0x43 0x6f ...
[snapscan] Read 36 bytes
[sanei_usb] sanei_usb_read_bulk: trying to read 8 bytes
[sanei_usb] 0000: FB 00 00 00 00 00 00 00                         ................
[sanei_usb] sanei_usb_read_bulk: wanted 8 bytes, got 8 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 "FlatbedScanner22" a supported scanner?
[snapscan] snapscani_get_model_id(FlatbedScanner22, 0, 2)
[sanei_usb] sanei_usb_get_vendor_product: device 0: vendorID: 0x04a5, productID: 0x20b0
[snapscan] snapscani_get_model_id: looking up scanner for ID 0x04a5,0x20b0.
[snapscan] snapscani_check_device: Autodetected driver: Acer4300 (42 bit)
[snapscan] snapscani_usb_close(0)
[snapscan] 1st read 3 write 1
[sanei_usb] sanei_usb_get_vendor_product: device 0: vendorID: 0x04a5, productID: 0x20b0
[snapscan] snapscani_usb_cmd(0,0xbfd096ee,6,0x0,0x0 (0))
[snapscan] atomic_usb_cmd(0,0xbfd096ee,6,0x0,0x0 (0))
[snapscan] usb_cmd(0,0xbfd096ee,6,0x0,0x0 (0))
[snapscan] usb_cmd: cmdlen=6, datalen=0
[snapscan] usb_write: writing:  0x00 0x00 0x00 0x00 0x00 0x00
[sanei_usb] sanei_usb_write_bulk: trying to write 6 bytes
[sanei_usb] 0000: 00 00 00 00 00 00                               ................
[sanei_usb] sanei_usb_write_bulk: wanted 6 bytes, wrote 6 bytes
[snapscan] Written 6 bytes
[sanei_usb] sanei_usb_read_bulk: trying to read 8 bytes
[sanei_usb] 0000: FB 00 00 00 00 00 00 00                         ................
[sanei_usb] sanei_usb_read_bulk: wanted 8 bytes, got 8 bytes
[snapscan] usb_read: reading:  0xfb 0x00 0x00 0x00 0x00 0x00 0x00 0x00
[snapscan] Read 8 bytes
[snapscan] 2nd read 4 write 2
[sanei_usb] sanei_usb_close: closing device 0
[snapscan] snapscani_init_device_structure()
[snapscan] sane_snapscan_get_devices (0xbfd0a8c8, 0)
device `snapscan:libusb:004:011' is a Acer FlatbedScanner22 flatbed scanner
[snapscan] sane_snapscan_exit
prog:/dev #