Switching on SCSI scanner

[momist]

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

[penguin.ch]

Re: Switching on SCSI scanner

man sane-scsi

[momist]

Re: Switching on SCSI scanner

man sane-scsi

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

[momist]

Re: Switching on SCSI scanner

man sane-scsi

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

[penguin.ch]

Re: Switching on SCSI scanner

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?

[momist]

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.

[penguin.ch]

Re: Switching on SCSI scanner

bash: /proc/scsi/scsi: Permission denied

Grrr ...

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

[momist]

Re: Switching on SCSI scanner

bash: /proc/scsi/scsi: Permission denied

Grrr ...

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

[penguin.ch]

Re: Switching on SCSI scanner

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.