diff options
| -rw-r--r-- | gr-usrp/src/usrp.py | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/gr-usrp/src/usrp.py b/gr-usrp/src/usrp.py index 6b2f3d46f..f149a3ff8 100644 --- a/gr-usrp/src/usrp.py +++ b/gr-usrp/src/usrp.py @@ -1,5 +1,5 @@ # -# Copyright 2004,2005 Free Software Foundation, Inc. +# Copyright 2004,2005,2007 Free Software Foundation, Inc. # # This file is part of GNU Radio # @@ -26,6 +26,7 @@ from usrpm import usrp_dbid from gnuradio import usrp1 # usrp Rev 1 and later from gnuradio import gru from usrpm.usrp_fpga_regs import * +import weakref FPGA_MODE_NORMAL = usrp1.FPGA_MODE_NORMAL FPGA_MODE_LOOPBACK = usrp1.FPGA_MODE_LOOPBACK @@ -380,10 +381,11 @@ def selected_subdev(u, subdev_spec): @param u: an instance of usrp.source_* or usrp.sink_* @param subdev_spec: return value from subdev option parser. @type subdev_spec: (side, subdev), where side is 0 or 1 and subdev is 0 or 1 - @returns: an instance derived from db_base + @returns: an weakref to an instance derived from db_base """ side, subdev = subdev_spec - return u.db[side][subdev] + # Note: This allows db to go out of scope at the right time + return weakref.proxy(u.db[side][subdev]) def calc_dxc_freq(target_freq, baseband_freq, fs): |