Re: [Pyusb-users] Permissions problem

[<iku...@ya...>]

Just a guess,  but in my custom rules, I use the form         ATTRS{idVendor}=="0FC5", 
        ATTRS{idProduct}=="B080",  instead of your         ATTRS{idVendor}=="0x0FC5", 
        ATTRS{idProduct}=="0xB080".

No idea if that matters.




	 
	
	 
	



For further debugging information, try “udevmonitor
–environment” and looking at the output to /var/log/messages
after running “udevcontrol log_priority=debug” from the command
line (as root). Once you've launched these commands, you'll need to
exercise the scope – turn it on, attempt access, etc.
You can also check the permissions of the /dev/bus/usb/ entry...

-Sarah

--- On Sun, 5/17/09, ed <ene...@co...> wrote:

From: ed <ene...@co...>
Subject: [Pyusb-users] Permissions problem
To: pyu...@li...
Date: Sunday, May 17, 2009, 3:14 PM

I have my program working OK but need to run as sudo.
So now I am trying to get the program to run in user space but can't
seem to get it to work.

I am using Ubuntu 8.10 Intrepid

This is what I have done / tried so far.
1. Created a group called delcomusb
    $ sudo groupadd -g 1001 delcomusb
2  Created a file in /etc/udev/rules.d called 99-delcomusb.rules and
placed the following.  I tried both.
    # Delcom USB Device
    SUBSYSTEM=="usb_device", 
   
     ACTION=="add",
        ATTRS{idVendor}=="0x0FC5", 
        ATTRS{idProduct}=="0xB080", 
        GROUP="delcomusb", 
        MODE="0660"

    #BUS=="usb", SYSFS{idVendor}=="0x0fC5",
               SYSFS{idProduct}=="0xB080", MODE="0666"
3. Restarted udev
    $ sudo /etc/init.d/udev restart

4. Added user to have access to group: delcomusb
    System -> Administartor -> Users and Groups
    unlock user (and then entered password)
    select user ed
    click on "Manage Groups"
    click on delcomusb
    check ed and root for Group Member

But still get the error when I try and
 run
./DelcomUSBDevice.py

self.handle.claimInterface(self.intf) # Interface 0   
usb.USBError: could not claim interface 0: Operation not permitted

But everything works fine with sudo.

Is there some step I missed?

Thanks
ed


    


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