Is it time to retire the scanner ?

Mehmet Erol Sanliturk m.e.sanliturk at
Sat Oct 22 17:09:02 UTC 2016

On Sat, Oct 22, 2016 at 9:39 AM, Warren Block <wblock at> wrote:

> On Sat, 22 Oct 2016, Manish Jain wrote:
> (ada0:ata0:0:1:0): READ_DMA48. ACB: 25 00 df ea ff 40 33 00 00 00 01 00
>> (ada0:ata0:0:1:0): CAM status: Command timeout
>> (ada0:ata0:0:1:0): Retrying command
>> I have no idea what the above means, but it does suggest to me that the
>> scanner cannot be blamed if it is still powered off.
>> The newest things in the system are the PSU, cabinet, RAM, and DVD drive
>> - all swapped just yesterday. Could the DVD drive be the source ?
> Possibly, they do return noisy errors when no media is loaded.  There was
> talk of silencing some of those lately.
> Returning to the scanner, I have been running 'scanimage -L' as root.
>> Between 0 and 4 times in succession, the command reports normal output :
>> <output>
>> /root <<: scanimage -L
>> device `pixma:04A9176C_43130B' is a CANON Canon PIXMA MG2400 Series
>> multi-function peripheral
>> </output
>> And then suddenly, it goes dead
>> /root <<: scanimage -L
>> #does not return now
> This might be correctable with a USB quirk, or it might need modification
> of the FreeBSD USB code.  Best to ask on the freebsd-usb at
> mailing list.
> If the scanner works on XP, the hardware is fine.  This is more likely a
>>> problem with USB and multifunction devices on FreeBSD.  It could be
>>> solvable.
>> Thanks for lending me hope. I am really struggling - just invested
>> something like USD 600 on a total system upgrade to make this superslick
>> machine. But it's all turning to ashes if the hardware starts going
>> bonkers already.
>> Would you suggest I wait a while for some further proof to accumulate;
>> or I should try making a fresh install of FreeBSD 10.2/11 (my current
>> system 10.3).
> Post on the USB mailing list.  They will probably ask for usbconfig output.


> Personally, I avoid multifunction devices.  My Epson 1640SU scanner is old
> and large but worked fine on 10-STABLE (and long before) and continues to
> work in 12-CURRENT without any changes.  It's noticeably faster than some
> new scanners.


The above note is really important , because , it is difficult to find open
source drivers for them due to "non-disclosure of information" requirements
of companies for some components .

For that reason , please , start from FreeBSD : Select drivers of possible
devices to use , such as SANE , CUPS . Then review their documentation .
Find a device which can work with these packages .
Select such a trade mark that it will be "famous" means its user base is
large , and ignore trade marks "no-one heard" it . In that way , if you ask
a question about it , it will be likely that you will find user(s) using
your selected device . It may not work in FreeBSD , due to ( not set
correctly or suitable ) parameters ( either one will supply to you
information about them or you can generate a bug report , it will be likely
there will be person(s) trying to help ( able to help ) because you have
selected an open source driver using that device .  Over time , knowledge
will accumulate to solve such problems .

Another information source is FreeBSD release documentation : In them ,
there are information which devices are supported . Some of them may be old
, but , even some of them can be found , especially in or
other large suppliers of computing hardware .

For that try to buy single purpose devices : printer , scanner , etc. , not
in combination .

Do NOT start from reverse : Buy hardware whatever it is , then try to use
it in the FreeBSD , even in Linux . It is very likely that you will fail to
find a suitable driver ( if you can not write such a one ) .

Mehmet Erol Sanliturk

> Unrelated to this, there is a bug in 10.3 amd64 install - most of the
>> times I have set up 10.3, the installer forgets to put the boot code in
>> the MBR. So immediately after install, I have to run a live shell and
>> run boot0cfg to get the boot code there.
> This should be a separate thread.
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