Re: [Openbts-discuss] B210 - how to change antenna ports?

[Tom T. <to...@ts...>]

On Fri, Mar 06, 2015 at 11:38:15AM +0100, Ralph A. Schmid, dk5ras wrote:
> Any ideas how I could change the ports used by OpenBTS? My B210 is damaged
> on one transceiver at the moment, so I would like to change to the second
> pair of antenna ports, means, from A:A to A:B. 

Try this. It's B210 specific - we'll need more control-configure-device
code for a general device solution. But it will get you up and running
again.

  -TT

diff --git a/Transceiver52M/UHDDevice.cpp b/Transceiver52M/UHDDevice.cpp
index f24a5f3..1b82621 100644
--- a/Transceiver52M/UHDDevice.cpp
+++ b/Transceiver52M/UHDDevice.cpp
@@ -553,6 +553,10 @@ int uhd_device::open(const std::string &args, bool
extref)
        if (!parse_dev_type())
                return -1;
 
+       uhd::usrp::subdev_spec_t subdev_spec("A:B");
+       usrp_dev->set_tx_subdev_spec(subdev_spec);
+       usrp_dev->set_rx_subdev_spec(subdev_spec);
+
        if (extref)
                set_ref_clk(true);