Re: [Discuss-gnuradio] fusb: (rd status -2) No such file or directory

[Brett L. Trotter]

This is precisely the problem I'm seeing that kills my USB. I have to
ctrl+c to keep that from happening.

On 05/27/2011 12:05 PM, Johannes Schmitz wrote:
> I made a simple example to show how it happens.
> It is a problem of lock/unlock in combination with usrp.
>
> Like this the lock unlock disconnect seems to absolutely unusable :(
>
> -------------------------------------
>
> #!/usr/bin/env python
>
> from gnuradio import gr
> from gnuradio import usrp
>
> from time import sleep
>
> class top_block(gr.top_block):
>     def __init__(self):
>         gr.top_block.__init__(self, "fusb error")
>
>         self.u = usrp.source_c ()
>         self.sink = gr.null_sink(gr.sizeof_gr_complex)
>         self.connect(self.u, self.sink)
>
>     def reconfigure(self):
>         self.lock()
>         print 'lock'
>         self.unlock()
>         print 'unlock'
>
> if __name__ == '__main__':
>     app = top_block()
>     app.start()
>     #sleep(1)
>     print 'start'
>     app.reconfigure()
>     print "reconfigured"
>     sleep(1)
>     print 'now stopping'
>     app.stop()
>     print 'stopped'
>
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