Re: [Discuss-gnuradio] usb_claim_interface error

[Robert Roberts]

I get the same thing in Redhat FC4.


~Chris~
----- Original Message -----
From: Javs <address@hidden>
Date: Tuesday, October 18, 2005 12:13 pm
Subject: Re: [Discuss-gnuradio] usb_claim_interface error
> 
> > No clue.  Is there anything interesting in the
> > kernel logs?
> 
> Nothing going on in the logs when i run the code. But
> the usb allocates a new address to the usb (old
> adress+1) upon reconnecting the power cable.
> 
> Here are a few more observations i made:
> 
> When i do a 'lsusb' upon system restart, I get the
> usrp on Bus 1 and device 2 after i force the
> bitstream. Now, when i disconnect and reconnect the
> power, the device changes to 3 with default
> permissions of '-rw-rw-r--' and the device address
> increments upon further reconnects. As a test, here i
> forced the bitstream (so that the examples work) and
> then changed the permission by 'chmod 000 -R
> /proc/bus/usb/001/*'. After this, no usrp found as
> expected. Changed back to 'chmod 777 -R
> /proc/bus/usb/001/*' and it works again. 
> 
> So, look like it does not stabilize on the device
> address after power reconnect. The changing of
> permissions (777) is not effected as it is creating a
> new mount with a new address at each reconnect with
> default permissions(664).
> 
> Still experimenting !
> 
> -Javs
> 
> 
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