Re: [Discuss-gnuradio] usb errors while stopping flowgraph

[Thomas Tsou]

On Sat, Feb 26, 2011 at 12:34 AM, Brett L. Trotter <address@hidden> wrote:
> I've got several different flowgraphs here that upon shutting down some
> portion of the time, they emit a series of errors and then totally tank
> my USB controller on a number of test systems, requiring a full system
> reboot to reset the USB (the RHEL6 box I'm using has USB modules
> compiled into the kernel, so rmmod isn't an option). The flowgraphs stop
> normally about 3/4 times. It seems to be chance when its in some odd
> state that it won't shutdown right.
>
> Errors emitted:
> usb_control_msg failed: error sending control message: Connection timed out
> write_cmd failed

You should consider switching over to the new UHD blocks as the old
driver is no longer in active development. You can try building with
the libusb-1.0 backend (--with-fusb-tech=libusb1) to see if the
problem goes away, but UHD is the long term solution.

  Thomas