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    Switching on SCSI scanner

    Hi,

    I've searched the forum for scsi and scanner issues, but nothing I can find solves this one. I'm running Dapper and trying to make my Epson GT-7000 scsi scanner work. I still have issues with permissions and such, but one step at a time I think I will get there eventually.

    My current difficulty is that I can find no way to make Kubuntu recognise the scanner unless it is switched on at boot time. Since I am still dual booting with that other OS until I am comfortable in Linux, this is a nuisance at the least.

    The scanner is connected by an Adaptec AHA-7850 (Rev01) scsi adaptor which remains recognised when the scanner is switched off. KInfoCentre shows the scanner :

    SCSI
    Attached devices
    Host: scsi0 Channel:00 Id:02 Lun:00
    Vendor: EPSON Model: SCANNER GT-7000 rEV: 1.14
    Type: Processor ANSI SCSI revision: 02

    if it was switched on at boot, but shows nothing connected to SCSI if it wasn't.

    How can I connect it when switching on after boot time?

    TIA

    Ian

    #2
    Re: Switching on SCSI scanner

    man sane-scsi

    Comment


      #3
      Re: Switching on SCSI scanner

      Originally posted by UnicornRider
      Thanks UnicornRider. I thought I had read that entry many days ago - but obviously missed seeing the bit about when a scsi device is switched off at boot time.

      Cheers, Ian

      Comment


        #4
        Re: Switching on SCSI scanner

        Originally posted by UnicornRider
        So i issued the command, as suggested in man
        sudo echo "scsi add-single-device 0 0 2 0" > /proc/scsi/scsi
        which returned only
        bash: /proc/scsi/scsi: Permission denied

        /proc/scsi/scsi does not exist on my system anyway, but is that why permission is denied to sudo?

        I'm still no nearer getting the scanner to connect without a reboot. Also I can find no way to use the scanner other than as root. I can't find where the missing permission is kept. Everything in udev looks OK to me, but there must be a root, root, permission attached to something somewhere. The 'scanner' is a member of scanner group, as am I as user.

        Ian

        Comment


          #5
          Re: Switching on SCSI scanner

          Originally posted by momist
          sudo echo "scsi add-single-device 0 0 2 0" > /proc/scsi/scsi
          bash: /proc/scsi/scsi: Permission denied
          Hmmm, what about sudo echo "scsi add-single-device 0 0 2 0" >> /proc/scsi/scsi instead?

          Comment


            #6
            Re: Switching on SCSI scanner

            ~$ sudo echo "scsi add-single-device 0 0 2 0" >> /proc/scsi/scsi
            bash: /proc/scsi/scsi: Permission denied

            Thanks for trying UnicornRider.

            Comment


              #7
              Re: Switching on SCSI scanner

              Originally posted by momist
              bash: /proc/scsi/scsi: Permission denied
              Grrr ...

              Code:
              sudo touch /proc/scsi/scsi
              sudo chmod +w /proc/scsi/scsi
              sudo echo "scsi add-single-device 0 0 2 0" > /proc/scsi/scsi

              Comment


                #8
                Re: Switching on SCSI scanner

                Originally posted by UnicornRider
                Originally posted by momist
                bash: /proc/scsi/scsi: Permission denied
                Grrr ...

                Code:
                sudo touch /proc/scsi/scsi
                sudo chmod +w /proc/scsi/scsi
                sudo echo "scsi add-single-device 0 0 2 0" > /proc/scsi/scsi
                Grrr indeed!!

                me:~$ sudo touch /proc/scsi/scsi
                Password:
                me:~$ sudo chmod +w /proc/scsi/scsi
                me:~$ sudo echo "scsi add-single-device 0 0 2 0" > /proc/scsi/scsi
                bash: /proc/scsi/scsi: Permission denied

                The file: /proc/scsi/scsi remains an empty document.
                Should I simply be editing this in kate in some way?

                Ian

                Comment


                  #9
                  Re: Switching on SCSI scanner

                  Originally posted by momist
                  The file: /proc/scsi/scsi remains an empty document.
                  Should I simply be editing this in kate in some way?
                  May sound silly, but has the scanner been activated during all this experimenting?

                  Otherwise: back to square one, i.e. Epson for Linux as well as SANE for Epson.

                  Comment

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