To Set Permission on USB Node "/Proc/Bus/Usb/bus-no/dev-no"
I am using CentOS 5 operating system. and trying to use a usb thermal printer.
This Printer works well if I log in as a root user, but I want to use it in non-root user mode. I have put this non root user in lp group also.
But No Success.
My printer uses usb port listed under /proc/bus/usb/bus-no/dev-no directory tree.
I want to set permission on it. [when I do it manually the printer starts working, but I don't want to do this in such way.] I need some automated way.
Also I found some techniques to set rules and permissions on usb port. but those techniques set the permission for /dev/bus/usb/bus-no/dev-no. and are of no use for me.
Please suggest me some good way to do so.
Re: To Set Permission on USB Node "/Proc/Bus/Usb/bus-no/dev-no"
i had similar problem. fedora core 4. hp 1120 mfp. sane works only with root permissions.
i used two files from packet iscan.
/etc/hotplug/iscan-device , permissions = 755, root, root
/etc/hotplug/iscan.usermap , permissions = 644, root, root
change it for yours. how determine?
what it does to me. it sets automatically permissions=666 to file
/proc/bus/usb/bus-no/dev-no - this file concern my scanner when scanner plugged. :) and as i have permissions 666 then i can run
as user. :)
hope this help.
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