On Fri, 30 Sep 2005 00:56, LRK wrote: > When I connect the USRP, FreeBSD sets it at /dev/ugen0, the generic USB > driver. This uses 'devfs' which is new to FreeBSD 5.x and to me. > > If I run something like usrp_fft.py with the default permissions I get > a failure message on the firmware load. This is expected since I am > running as the user gr and the device is only writable by root. > > I chown the ugen0 device to gr and run the command again. The firmware > appears to load properly but then the error messages appear showing the > USRP cannot be found. The message > > ugen0: Free Software Folks USRP Rev 2, rev 2.00/1.02, addr 2 > > appears in the log file but the owner on the /dev/ugen0 has been set back > to root. > > I chown the device again and run the .py again. This gives me slightly > different error messages. > > > All these errors seem to be related to the "look_for_usrp" step. Usrper > seems to find the board to load firmware and that seems to work, changing > the flashing rate of the LED on the USRP and putting the message in the > log file. If the board is actually loaded, the device owner gets changed > back to root. > > > I am looking thru everything again but any clues would be appreciated.
G'day, You also will have to change ownership/mode of the /dev/usb* devices. In my case the device is attached as usb4 at ehci0: USB revision 2.0 uhub4 at usb4 uhub4: Intel EHCI root hub, class 9/0, rev 2.00/1.00, addr 1 uhub4: 8 ports with 8 removable, self powered [...] uhub4 at usb4 uhub4: Intel EHCI root hub, class 9/0, rev 2.00/1.00, addr 1 uhub4: 8 ports with 8 removable, self powered [...] ugen0 at uhub4 port 1 ugen0: Free Software Folks USRP Rev 2, rev 2.00/1.02, addr 2 Let me know how it goes, cheerio Berndt
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