[sane-devel] Installation of Epson 1650 Scanner
Karl Heinz Kremer
khk@khk.net
Sun, 27 Oct 2002 20:53:10 -0500
--UHN/qo2QbUvPLonB
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable
On Sun, Oct 27, 2002 at 02:06:34PM -0500, John S. Dey wrote:
> Karl:
>=20
> (1) You were right -- the permission was "crw-------" but the owner was=
=20
> user. When I change the permission to "crw-rw-rw" and set owner to=20
> "user.user" and logoff and logon again the values revert to "cwr-------"=
=20
> and "user.root". RH does something or maybe Gnome. I tried with=20
> another user account and observed the same behavior.
That's OK, something in our computer is changing the permissioins when
you log in. Therefore whoever is logged into the console has access
to the scanner.=20
Did you install RH 7.3 from scratch, or was this an update from 7.2?
>=20
> (2) After setting to "crw-rw-rw" and "user.user" and running xsane as=20
> before, the debug scan.log file now doesn't have the line "Send buf,=20
> Size=3D2" but ends with the line "[epson] attach failed: Access to=20
> resource has been denied"
This is odd, as long as you have rw access to the device, it should
behave the same way.
>=20
> (3) There were no messages printed to the console
>=20
> (4) I don't have another USB cable but I have a Win98 machine that did=20
> work with the scanner. I will check out that this is still the case. I=
=20
> plan to install RH 7.3 on that machine and I will run the experiments=20
> using it.
>=20
> (5) I am currently running on a Compaq Presario 5000 with a USB keyboard.
>=20
> Thank you for your efforts and suggestions. Any further thoughts will=20
> be greatly appreciated.
I am running out of ideas here. Let me give you once again the check list,
usually it's one of these points:
- Verify that you only have one set of configuration file / one version
of Sane installed.
- Verify that you have the correct configuration line in epson.conf
(very likely "usb /dev/usb/scanner0")
- Verify that you have read and write access to the device file
- Verify that the USB scanner driver is loaded (cat /proc/modules | grep sc=
anner)
- Verify that the scanner is recognized by the USB driver (cat=20
/proc/bus/usb/devices)
- Verify that you get the same results as root and as normal user.
- Connect the scanner directly to the computer and not via a hub.
Karl Heinz
>=20
>=20
> Karl Heinz Kremer wrote:
>=20
> >Sorry for the misunderstanding. The backend tries to send two bytes
> >(the reset command), but never receives the acknowledgement from
> >the scanner. You wrote in your first message that the permissions
> >on the device file are 666, can you please verify this.=20
> >
> >Do you see any messages on the console?=20
> >
> >Is the scanner connected via a hub? If so, can you try to connect
> >it directly to the computer and run the test again.
> >
> >Do you have a second USB cable that you can use? I have seen this
> >problem once where replacing the cable fixed everything.=20
> >
> >Do you have any other USB devices connected to your computer?
> >
> >Karl Heinz
> >
> >
> >On Sat, Oct 26, 2002 at 09:10:30PM -0400, John S. Dey wrote:
> >=20
> >
> >>By home I meant that things are not working yet. Please note that the=
=20
> >>device opens and the debug output ends with "Send buf, Size=3D2" I=20
> >>rechecked the file epson.conf for the correct spelling for the device=
=20
> >>name and it appears correct. Where do I go from here.
> >>
> >>
> >>Karl Heinz Kremer wrote:
> >>
> >> =20
> >>
> >>>This is strange. I assume that you have not yet changed the=20
> >>>spelling of the entry in the config file. Therefore the scanner
> >>>should not react at all. Or did I misinterpret your comment
> >>>about not being home?=20
> >>>
> >>>Karl Heinz
> >>>
> >>>On Sat, Oct 26, 2002 at 04:18:42PM -0400, John S. Dey wrote:
> >>>
> >>>
> >>> =20
> >>>
> >>>>Karl:
> >>>>
> >>>>Thanks for correcting my spelling. I'm not home yet however. When I=
=20
> >>>>xsane, a window pops up and first says that it is "scanning for a=20
> >>>>device" . After about 15 sec. the light on the scanner is blinking an=
d=20
> >>>>then the window goes blank and the light on the scanner stops=20
> >>>>blinking and stays on. The debug file indicates the device has been =
=20
> >>>>openned and a line "Send buf, Size=3D2" is added to file. I couldn't=
=20
> >>>>delete the window and I couldn't kill it as user or super user. =20
> >>>>Logout/login got rid of the xsane process. Have I experienced norma=
l=20
> >>>>behavior or is there still something I am missing. Thanks for your=
=20
> >>>>assistance.
> >>>>
> >>>>
> >>>>Karl Heinz Kremer wrote:
> >>>>
> >>>>=20
> >>>>
> >>>> =20
> >>>>
> >>>>>The log files show that you are trying to open the file
> >>>>>/dev/ubs/scanner0 and not /dev/usb/scanner0. I am pretty
> >>>>>sure that the scanner will work once you correct the typo.
> >>>>>
> >>>>>Karl Heinz
> >>>>>
> >>>>>On Sat, Oct 26, 2002 at 02:16:53PM -0400, John S. Dey wrote:
> >>>>>
> >>>>>
> >>>>> =20
> >>>>>
> >>>>> =20
> >>>>>
> >>>>>>Hello:
> >>>>>>
> >>>>>>I am trying to connect my Epson Perfection 1650 to a Up2date RH7.3=
=20
> >>>>>>linux machine. I researched the archives and ran the follow test.=
=20
> >>>>>>The scanner is on and connected.
> >>>>>>The device, /dev/usb/scanner0, privelages was set to 666. Can anyon=
e=20
> >>>>>>help me out with the installation? =20
> >>>>>>Thanks
> >>>>>>
> >>>>>>TESTS
> >>>>>>
> >>>>>>"sane-find-scanner" produces:
> >>>>>>
> >>>>>>sane-find-scanner: found USB scanner (vendor =3D 0x04b8, product =
=3D=20
> >>>>>>0x0110) at device /dev/usb/scanner0
> >>>>>>
> >>>>>>"export SANE_DEBUG_EPSON=3D3D12
> >>>>>>xsane > /tmp/scan.log 2>&1" produces the output:
> >>>>>>
> >>>>>>[sanei_debug] Setting debug level of epson to 3.
> >>>>>>[epson] sane_init: sane-backends 1.0.7
> >>>>>>[epson] SANE Epson Backend v0.2.19 - 2002-01-18
> >>>>>>[epson] attach: opening epson:/dev/ubs/scanner0
> >>>>>>[epson] attach: open failed: Invalid argument
> >>>>>>
> >>>>>>I have set epson.conf to both /dev/ubs/scnner0 (output not shown)=
=20
> >>>>>>and epson:/dev/ubs/scanner0
> >>>>>>
> >>>>>>I issued:
> >>>>>>"SANE_DEBUG_EPSON=3D255 scanimage -L" which produces:
> >>>>>>[sanei_debug] Setting debug level of epson to 255.
> >>>>>>.=20
> >>>>>>.
> >>>>>>.
> >>>>>>[epson] sane_init, ># recognized.<
> >>>>>>[epson] sane_init, >epson:/dev/ubs/scanner0<
> >>>>>>[epson] sane_init, >epson:/dev/ubs/scanner0<
> >>>>>>[epson] attach(epson:/dev/ubs/scanner0)
> >>>>>>[epson] SANE Epson Backend v0.2.19 - 2002-01-18
> >>>>>>[epson] attach(epson:/dev/ubs/scanner0)
> >>>>>>[epson] attach: opening epson:/dev/ubs/scanner0
> >>>>>>[epson] attach: open failed: Invalid argument
> >>>>>>[epson] sane_get_devices()
> >>>>>>.=20
> >>>>>>.
> >>>>>>.
> >>>>>>and finally I issued:
> >>>>>>"SANE_DEBUG_DLL=3D255 scanimage -L" which produces:
> >>>>>>
> >>>>>>[sanei_debug] Setting debug level of dll to 255.
> >>>>>>[dll] sane_init: SANE dll backend version 1.0.5 from=20
> >>>>>>sane-backends-1.0.7
> >>>>>>[dll] add_backend: adding backend epson
> >>>>>>[dll] load: loading backend epson
> >>>>>>[dll] load: dlopen()ing `/usr/lib/sane/libsane-epson.so.1'
> >>>>>>[dll] init: initializing backend `epson'
> >>>>>>[sanei_debug] Setting debug level of epson to 3.
> >>>>>>[epson] sane_init: sane-backends 1.0.7
> >>>>>>[epson] SANE Epson Backend v0.2.19 - 2002-01-18
> >>>>>>[epson] attach: opening epson:/dev/ubs/scanner0
> >>>>>>[epson] attach: open failed: Invalid argument
> >>>>>>[dll] init: backend `epson' is version 1.0.219
> >>>>>>[dll] sane_exit: exiting
> >>>>>>[dll] sane_exit: calling backend `epson's exit function
> >>>>>>[dll] sane_exit: finished
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>>_______________________________________________
> >>>>>>Sane-devel mailing list
> >>>>>>Sane-devel@www.mostang.com
> >>>>>>http://www.mostang.com/mailman/listinfo/sane-devel
> >>>>>>
> >>>>>>
> >>>>>> =20
> >>>>>>
> >>>>>> =20
> >>>>>>
> >>>>> =20
> >>>>>
> >>>>> =20
> >>>>>
> >>>>=20
> >>>>
> >>>> =20
> >>>>
> >>>
> >>> =20
> >>>
> >>
> >> =20
> >>
> >
> >=20
> >
>=20
>=20
>=20
--=20
Karl Heinz Kremer khk@khk.net
PGP Key at http://www.khk.net/download/khk.asc
EPSON Sane Backend: http://www.khk.net
--UHN/qo2QbUvPLonB
Content-Type: application/pgp-signature
Content-Disposition: inline
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.0.7 (GNU/Linux)
iD8DBQE9vJiGxejv3RfKrhsRAuhTAKDECaNbUr+SiTpnliAKU0U0PGPcowCeKRhb
fqdL1eVfYvdfijR8B39VvvI=
=Cyej
-----END PGP SIGNATURE-----
--UHN/qo2QbUvPLonB--