[sane-devel] backend configuration error.

[Rupesh Tarpara]

Hi,

I have hand held image scanner which is a USB-ACM device and uses standard
ACM driver (serial communication protocol over USB interface). The device
file created by driver is /dev/input/ttyACM0 (virtual serial device).

Following is the build procedure I have followed.

I have downloaded "sane-backends 1.0.18" source and made the following
changes to incorporate my device:
1. I have created a new backend source file for this device.
2. I have modified "sane-backends-1.0.18/configure.in" and
"sane-backends-1.0.18/backend/Makefile.in" files to include my backend.
3. executed autoconf, ./configure, make and make install
4. all libraries were installed at "/usr/local/lib/sane"

I modified the "/usr/local/etc/sane.d/dll.conf" file to include my backend
name.

I am using Xsane as frontend. When I run Xsane, it gives error message as
"no devices available"

-----------------------------------------------------------------------
My queries,

1) are there any backend configuration steps which I might have skipped?
2) What is the procedure frontend follows when it is executed?
3) How does the communication happens (or initiates) between Frontend<---->
backend <------> device?
4) What are the steps to be followed for new backend installation?

-------------------------------------

Additional information about OS and sane version I am using.

I am using RedHat AS3 OS, following is the output of uname -a
[root at mypc root]# uname -a
Linux mypc.home.com 2.4.21-40.EL #1 Thu Feb 2 22:32:00 EST 2006 i686 i686
i386 GNU/Linux

[root at mypc root]# scanimage --version
scanimage (sane-backends) 1.0.18; backend version 1.0.18

Regards,

Rupesh





http://www.patni.com
World-Wide Partnerships. World-Class Solutions.
_____________________________________________________________________

This e-mail message may contain proprietary, confidential or legally
privileged information for the sole use of the person or entity to
whom this message was originally addressed. Any review, e-transmission
dissemination or other use of or taking of any action in reliance upon
this information by persons or entities other than the intended
recipient is prohibited. If you have received this e-mail in error
kindly delete  this e-mail from your records. If it appears that this
mail has been forwarded to you without proper authority, please notify
us immediately at netadmin at patni.com and delete this mail. 
_____________________________________________________________________