juancarlos@cm-xubuntu:~$ sudo SANE_DEBUG_SANEI_PA4S2=128 LIBIEEE1284_DEBUG=128 scanimage -L
[sanei_debug] Setting debug level of sanei_pa4s2 to 128.
[sanei_pa4s2] sanei_pa4s2: interface called for the first time
[sanei_pa4s2] sanei_pa4s2_devices: invoked
[sanei_pa4s2] pa4s2_init: static int first_time = 1
[sanei_pa4s2] pa4s2_init: called for the first time
[sanei_pa4s2] pa4s2_init: initializing libieee1284
Reading configuration from /etc/ieee1284.conf:
* Disallowing method: ppdev
End of configuration
/dev/parport0 is accessible
We can use ioperm()
/dev/port is accessible
This system has /proc/sys/dev/parport
[sanei_pa4s2] pa4s2_init: 1 ports reported by IEEE 1284 library
[sanei_pa4s2] pa4s2_init: port 0 is `parport0`
[sanei_pa4s2] pa4s2_init: allocating port list
[sanei_pa4s2] pa4s2_init: initialized successfully
[sanei_pa4s2] sanei_pa4s2_open: called for device 'parport0'
[sanei_pa4s2] sanei_pa4s2_open: trying to connect to port
[sanei_pa4s2] pa4s2_open: trying to attach dev `parport0`
[sanei_pa4s2] pa4s2_init: static int first_time = 0
[sanei_pa4s2] pa4s2_init: sanei already initalized
[sanei_pa4s2] pa4s2_open: looking up port in list
[sanei_pa4s2] pa4s2_open: port is in list at port[0]
[sanei_pa4s2] pa4s2_open: setting up port data
[sanei_pa4s2] pa4s2_open: name=parport0 in_use=SANE_TRUE
[sanei_pa4s2] pa4s2_open: enabled=SANE_FALSE mode=PA4S2_MODE_NIB
[sanei_pa4s2] pa4s2_open: opening device
==> ieee1284_open
==> init_port
Got 0 from IO init
<== 0
[sanei_pa4s2] pa4s2_open: device `parport0` opened...
[sanei_pa4s2] pa4s2_open: returning SANE_STATUS_GOOD
[sanei_pa4s2] pa4s2_open: open dev `parport0` as fd 0
[sanei_pa4s2] sanei_pa4s2_open: connected to device using fd 0
[sanei_pa4s2] sanei_pa4s2_open: checking for scanner
[sanei_pa4s2] sanei_pa4s2_enable: called for fd 0 with value 1
[sanei_pa4s2] sanei_pa4s2_enable: enable port 'parport0'
07:39:28.250122 STATUS: !nFault !Select !PError !nAck !Busy
07:39:28.250436 CONTROL: !nStrobe !nAutoFd  nInit !nSelectIn
[sanei_pa4s2] pa4s2_enable: prelock[] = {0x04, 0x86, 0x00}
[sanei_pa4s2] sanei_pa4s2_enable: returning SANE_STATUS_GOOD
[sanei_pa4s2] sanei_pa4s2_open: reading ASIC id
[sanei_pa4s2] sanei_pa4s2_readbegin: called for fd 0 and register 0
[sanei_pa4s2] sanei_pa4s2_readbegin: NIB readbegin
[sanei_pa4s2] pa4s2_readbegin_nib: selecting register 0 at 'parport0'
07:39:28.250590 CONTROL: !nStrobe  nAutoFd  nInit !nSelectIn
07:39:28.250621 CONTROL: !nStrobe !nAutoFd  nInit !nSelectIn
[sanei_pa4s2] sanei_pa4s2_readbegin: returning SANE_STATUS_GOOD
[sanei_pa4s2] sanei_pa4s2_readbyte: called with fd 0
[sanei_pa4s2] sanei_pa4s2_readbyte: we hope, the backend called
[sanei_pa4s2] sanei_pa4s2_readbyte: readbegin, so the port is ok...
[sanei_pa4s2] sanei_pa4s2_readbyte: this means, I did not check it - it's
[sanei_pa4s2] sanei_pa4s2_readbyte: not my fault, if your PC burns down.
[sanei_pa4s2] sanei_pa4s2_readbyte: read in NIB mode
07:39:28.250734 CONTROL:  nStrobe !nAutoFd  nInit !nSelectIn
07:39:28.250771 CONTROL: !nStrobe !nAutoFd  nInit !nSelectIn
[sanei_pa4s2] pa4s2_readbyte_nib: reading value 0x00 from 'parport0'
[sanei_pa4s2] sanei_pa4s2_readbyte: read finished
[sanei_pa4s2] sanei_pa4s2_readbyte: got value 0x00
[sanei_pa4s2] sanei_pa4s2_readbyte: returning SANE_STATUS_GOOD
[sanei_pa4s2] sanei_pa4s2_readend: called for fd 0
[sanei_pa4s2] sanei_pa4s2_readend: we hope, the backend called
[sanei_pa4s2] sanei_pa4s2_readend: readbegin, so the port is ok...
[sanei_pa4s2] sanei_pa4s2_readend: this means, I did not check it - it's
[sanei_pa4s2] sanei_pa4s2_readend: not my fault, if your PC burns down.
[sanei_pa4s2] sanei_pa4s2_readend: NIB mode readend
[sanei_pa4s2] pa4s2_readend_nib: end of reading sequence for fd 0
[sanei_pa4s2] sanei_pa4s2_readend: returning SANE_STATUS_GOOD
[sanei_pa4s2] sanei_pa4s2_open: could not find scanner
[sanei_pa4s2] sanei_pa4s2_open: reported ASIC id 0x00
[sanei_pa4s2] sanei_pa4s2_enable: called for fd 0 with value 0
[sanei_pa4s2] sanei_pa4s2_enable: disable port 'parport0'
07:39:28.250990 CONTROL: !nStrobe !nAutoFd !nInit !nSelectIn
[sanei_pa4s2] pa4s2_disable: state restored
[sanei_pa4s2] sanei_pa4s2_enable: returning SANE_STATUS_GOOD
[sanei_pa4s2] sanei_pa4s2_open: closing port
[sanei_pa4s2] sanei_pa4s2_close: fd = 0
[sanei_pa4s2] sanei_pa4s2_close: freeing resources
[sanei_pa4s2] pa4s2_close: fd=0
[sanei_pa4s2] pa4s2_close: this is port 'parport0'
[sanei_pa4s2] pa4s2_close: checking whether port is enabled
[sanei_pa4s2] pa4s2_close: trying to free io port
[sanei_pa4s2] pa4s2_close: marking port as unused
[sanei_pa4s2] pa4s2_close: returning SANE_STATUS_GOOD
[sanei_pa4s2] sanei_pa4s2_close: finished
[sanei_pa4s2] sanei_pa4s2_open: returning SANE_STATUS_INVAL
[sanei_debug] Setting debug level of sanei_pa4s2 to 128.
[sanei_pa4s2] sanei_pa4s2: interface called for the first time
[sanei_pa4s2] sanei_pa4s2_scsi_pp_open: called for device 'parport0'
[sanei_pa4s2] sanei_pa4s2_scsi_pp_open: trying to connect to port
[sanei_pa4s2] pa4s2_open: trying to attach dev `parport0`
[sanei_pa4s2] pa4s2_init: static int first_time = 1
[sanei_pa4s2] pa4s2_init: called for the first time
[sanei_pa4s2] pa4s2_init: initializing libieee1284
Reading configuration from /etc/ieee1284.conf:
* Disallowing method: ppdev
End of configuration
[sanei_pa4s2] pa4s2_init: 1 ports reported by IEEE 1284 library
[sanei_pa4s2] pa4s2_init: port 0 is `parport0`
[sanei_pa4s2] pa4s2_init: allocating port list
[sanei_pa4s2] pa4s2_init: initialized successfully
[sanei_pa4s2] pa4s2_open: looking up port in list
[sanei_pa4s2] pa4s2_open: port is in list at port[0]
[sanei_pa4s2] pa4s2_open: setting up port data
[sanei_pa4s2] pa4s2_open: name=parport0 in_use=SANE_TRUE
[sanei_pa4s2] pa4s2_open: enabled=SANE_FALSE mode=PA4S2_MODE_NIB
[sanei_pa4s2] pa4s2_open: opening device
==> ieee1284_open
==> init_port
Got 0 from IO init
<== 0
[sanei_pa4s2] pa4s2_open: device `parport0` opened...
[sanei_pa4s2] pa4s2_open: returning SANE_STATUS_GOOD
[sanei_pa4s2] pa4s2_open: open dev `parport0` as fd 0
[sanei_pa4s2] sanei_pa4s2_scsi_pp_open: connected to device using fd 0
[sanei_pa4s2] sanei_pa4s2_scsi_pp_open: checking for scanner
[sanei_pa4s2] sanei_pa4s2_enable: called for fd 0 with value 1
[sanei_pa4s2] sanei_pa4s2_enable: enable port 'parport0'
07:39:28.268975 CONTROL: !nStrobe !nAutoFd  nInit !nSelectIn
[sanei_pa4s2] pa4s2_enable: prelock[] = {0x04, 0x86, 0x00}
[sanei_pa4s2] sanei_pa4s2_enable: returning SANE_STATUS_GOOD
[sanei_pa4s2] sanei_pa4s2_scsi_pp_get_status: called for fd 0
[sanei_pa4s2] sanei_pa4s2_scsi_pp_get_status: status=0x06
[sanei_pa4s2] sanei_pa4s2_scsi_pp_get_status: returning SANE_STATUS_GOOD
[sanei_pa4s2] sanei_pa4s2_scsi_pp_open: device returned status 0x00
[sanei_pa4s2] sanei_pa4s2_enable: called for fd 0 with value 0
[sanei_pa4s2] sanei_pa4s2_enable: disable port 'parport0'
07:39:28.269179 CONTROL: !nStrobe !nAutoFd !nInit !nSelectIn
[sanei_pa4s2] pa4s2_disable: state restored
[sanei_pa4s2] sanei_pa4s2_enable: returning SANE_STATUS_GOOD
Reading configuration from /etc/ieee1284.conf:
* Disallowing method: ppdev
End of configuration
device `v4l:/dev/video0' is a Noname BT848A video (Pinnacle PCTV Stu virtual device
Destructor for port 'parport0'