[sane-devel] IO-error in sane/Xsane using IDE over SCSI

[Katja und Siegfried Haas]

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Hello everybody from Neumünster/Germany,

I have just subscribed the mailinglist and would like to make the 
following request! Can anybody help me?

After installing Xcdroast on my Linux-system (SuSE 7.3, Kernel 2.4) I 
had to set both - the IDE-CD-Rom and the IDE-CD-Writer - as SCSI-devices 
via the "SCSI-emulation", using the command in lilo-append "hdc=ide-scsi 
hdd=ide-scsi". That works well for Xcdroast but now my SCSI-Scanner 
(Mustek Paragon 600 II) gives, when using it via Xsane as normal user, 
the errormessage "Fehler bei Geräte IO"and does not work at all. When 
scanning as root via sane the scanner works, allthough the ...pnm-file, 
which is created, can not be read by gimp (error-message"unexpected end 
of file").

scanimage -L gives the correct answer "device `mustek:/dev/sg2' is a 
Mustek 600S/600 II CD flatbed scanner"

cat proc/scsi/scsi gives the answer in the attached file (CD-Rom at 
0000, CD-RW at 0010 and Scanner at 1060)

and a scsirescan-script (when the scanner is switched on after boot) 
gives the same message when used as "root" but tells, when used as 
normal "user", that there is no right for access to the SCSI-Adapter 1, 
device 0-8, which is my "physical" SCSI-Adapter. SCSI 0, device 0 and 1 
is the SCSI-Emulation ("virtual SCSI-Adapter") for the both CD's. For 
SCSI 0 the access is allowed - for the devices 0,1 and !!2!!. From 3 on, 
access is denied also! It seams, that SuSE does mix something up at this 
point! As if it expects the Scanner at device 0020, while it realy is at 
1060.

What can I do? How can I set the permission correct for the physical 
SCSI-Adapter?(sg2 has the right permissions!)

Looking forward to hearing from You

Siegfried

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