uhd: fixes audio_alsa_sink busy

10 files changed, 13 insertions, 11 deletions

diff --git a/gr-uhd/examples/python/usrp_am_mw_rcv.py b/gr-uhd/examples/python/usrp_am_mw_rcv.py
index 28262f2bd..9d359a4cf 100755
--- a/gr-uhd/examples/python/usrp_am_mw_rcv.py
+++ b/gr-uhd/examples/python/usrp_am_mw_rcv.py
@@ -20,6 +20,8 @@
 # Boston, MA 02110-1301, USA.
 #
 
+#FIX gain
+
 from gnuradio import gr, eng_notation, optfir
 from gnuradio import audio
 from gnuradio import uhd
@@ -53,7 +55,7 @@ class wfm_rx_block (stdgui2.std_top_block):
                           help="set gain in dB (default is maximum)")
         parser.add_option("-V", "--volume", type="eng_float", default=None,
                           help="set volume (default is midpoint)")
-        parser.add_option("-O", "--audio-output", type="string", default="",
+        parser.add_option("-O", "--audio-output", type="string", default="default",
                           help="pcm device name.  E.g., hw:0,0 or surround51 or /dev/dsp")
 
         (options, args) = parser.parse_args()
diff --git a/gr-uhd/examples/python/usrp_nbfm_ptt.py b/gr-uhd/examples/python/usrp_nbfm_ptt.py
index 8d26e656e..1ec25d167 100755
--- a/gr-uhd/examples/python/usrp_nbfm_ptt.py
+++ b/gr-uhd/examples/python/usrp_nbfm_ptt.py
@@ -59,9 +59,9 @@ class ptt_block(stdgui2.std_top_block):
                            help="set rx gain [default=midpoint in dB]")
         parser.add_option ("", "--tx-gain", type="eng_float", default=None,
                            help="set tx gain [default=midpoint in dB]")
-        parser.add_option("-I", "--audio-input", type="string", default="",
+        parser.add_option("-I", "--audio-input", type="string", default="default",
                           help="pcm input device name.  E.g., hw:0,0 or /dev/dsp")
-        parser.add_option("-O", "--audio-output", type="string", default="",
+        parser.add_option("-O", "--audio-output", type="string", default="default",
                           help="pcm output device name.  E.g., hw:0,0 or /dev/dsp")
         parser.add_option ("-N", "--no-gui", action="store_true", default=False)
         (options, args) = parser.parse_args ()
diff --git a/gr-uhd/examples/python/usrp_nbfm_rcv.py b/gr-uhd/examples/python/usrp_nbfm_rcv.py
index 571abe8c9..be890f02d 100755
--- a/gr-uhd/examples/python/usrp_nbfm_rcv.py
+++ b/gr-uhd/examples/python/usrp_nbfm_rcv.py
@@ -50,7 +50,7 @@ class my_top_block (stdgui2.std_top_block):
                           help="set gain in dB (default is midpoint)")
         parser.add_option("-V", "--volume", type="eng_float", default=None,
                           help="set volume (default is midpoint)")
-        parser.add_option("-O", "--audio-output", type="string", default="",
+        parser.add_option("-O", "--audio-output", type="string", default="default",
                           help="pcm device name.  E.g., hw:0,0 or surround51 or /dev/dsp")
         parser.add_option("-N", "--no-gui", action="store_true", default=False)
 
diff --git a/gr-uhd/examples/python/usrp_wfm_rcv.py b/gr-uhd/examples/python/usrp_wfm_rcv.py
index bbb599033..9004469fc 100755
--- a/gr-uhd/examples/python/usrp_wfm_rcv.py
+++ b/gr-uhd/examples/python/usrp_wfm_rcv.py
@@ -46,7 +46,7 @@ class wfm_rx_block (stdgui2.std_top_block):
                           help="set gain in dB (default is midpoint)")
         parser.add_option("-V", "--volume", type="eng_float", default=None,
                           help="set volume (default is midpoint)")
-        parser.add_option("-O", "--audio-output", type="string", default="",
+        parser.add_option("-O", "--audio-output", type="string", default="default",
                           help="pcm device name.  E.g., hw:0,0 or surround51 or /dev/dsp")
         parser.add_option("", "--freq-min", type="eng_float", default=87.9e6,
                           help="Set a minimum frequency [default=%default]")
diff --git a/gr-uhd/examples/python/usrp_wfm_rcv2_nogui.py b/gr-uhd/examples/python/usrp_wfm_rcv2_nogui.py
index f7e72ae6f..dd4190b6d 100755
--- a/gr-uhd/examples/python/usrp_wfm_rcv2_nogui.py
+++ b/gr-uhd/examples/python/usrp_wfm_rcv2_nogui.py
@@ -44,7 +44,7 @@ class wfm_rx_block (gr.top_block):
                           help="set 2nd station freq to FREQ", metavar="FREQ")
         parser.add_option("-g", "--gain", type="eng_float", default=40,
                           help="set gain in dB (default is midpoint)")
-        parser.add_option("-O", "--audio-output", type="string", default="",
+        parser.add_option("-O", "--audio-output", type="string", default="default",
                           help="pcm device name.  E.g., hw:0,0 or surround51 or /dev/dsp")
         parser.add_option("", "--freq-min", type="eng_float", default=87.9e6,
                           help="Set a minimum frequency [default=%default]")
diff --git a/gr-uhd/examples/python/usrp_wfm_rcv_fmdet.py b/gr-uhd/examples/python/usrp_wfm_rcv_fmdet.py
index 514bd4faf..154f2456e 100755
--- a/gr-uhd/examples/python/usrp_wfm_rcv_fmdet.py
+++ b/gr-uhd/examples/python/usrp_wfm_rcv_fmdet.py
@@ -47,7 +47,7 @@ class wfm_rx_block (stdgui2.std_top_block):
                           help="set squelch level (default is 0)")
         parser.add_option("-V", "--volume", type="eng_float", default=None,
                           help="set volume (default is midpoint)")
-        parser.add_option("-O", "--audio-output", type="string", default="",
+        parser.add_option("-O", "--audio-output", type="string", default="default",
                           help="pcm device name.  E.g., hw:0,0 or surround51 or /dev/dsp")
         parser.add_option("", "--freq-min", type="eng_float", default=87.9e6,
                           help="Set a minimum frequency [default=%default]")
diff --git a/gr-uhd/examples/python/usrp_wfm_rcv_nogui.py b/gr-uhd/examples/python/usrp_wfm_rcv_nogui.py
index 7d042983e..9a7558dc7 100755
--- a/gr-uhd/examples/python/usrp_wfm_rcv_nogui.py
+++ b/gr-uhd/examples/python/usrp_wfm_rcv_nogui.py
@@ -44,7 +44,7 @@ class wfm_rx_block (gr.top_block):
                           help="set gain in dB (default is midpoint)")
         parser.add_option("-V", "--volume", type="eng_float", default=None,
                           help="set volume (default is midpoint)")
-        parser.add_option("-O", "--audio-output", type="string", default="",
+        parser.add_option("-O", "--audio-output", type="string", default="default",
                           help="pcm device name.  E.g., hw:0,0 or surround51 or /dev/dsp")
         parser.add_option("", "--freq-min", type="eng_float", default=87.9e6,
                           help="Set a minimum frequency [default=%default]")
diff --git a/gr-uhd/examples/python/usrp_wfm_rcv_pll.py b/gr-uhd/examples/python/usrp_wfm_rcv_pll.py
index 53b1e6fea..8cdabe87a 100755
--- a/gr-uhd/examples/python/usrp_wfm_rcv_pll.py
+++ b/gr-uhd/examples/python/usrp_wfm_rcv_pll.py
@@ -48,7 +48,7 @@ class wfm_rx_block (stdgui2.std_top_block):
                           help="set squelch level (default is 0)")
         parser.add_option("-V", "--volume", type="eng_float", default=None,
                           help="set volume (default is midpoint)")
-        parser.add_option("-O", "--audio-output", type="string", default="",
+        parser.add_option("-O", "--audio-output", type="string", default="default",
                           help="pcm device name.  E.g., hw:0,0 or surround51 or /dev/dsp")
         parser.add_option("", "--freq-min", type="eng_float", default=87.9e6,
                           help="Set a minimum frequency [default=%default]")
diff --git a/gr-uhd/examples/python/usrp_wfm_rcv_sca.py b/gr-uhd/examples/python/usrp_wfm_rcv_sca.py
index 646fe8587..f8ae778a9 100755
--- a/gr-uhd/examples/python/usrp_wfm_rcv_sca.py
+++ b/gr-uhd/examples/python/usrp_wfm_rcv_sca.py
@@ -76,7 +76,7 @@ class wfm_rx_sca_block (stdgui2.std_top_block):
                           help="set gain in dB (default is midpoint)")
         parser.add_option("-V", "--volume", type="eng_float", default=None,
                           help="set volume (default is midpoint)")
-        parser.add_option("-O", "--audio-output", type="string", default="",
+        parser.add_option("-O", "--audio-output", type="string", default="default",
                           help="pcm device name.  E.g., hw:0,0 or surround51 or /dev/dsp")
         parser.add_option("", "--freq-min", type="eng_float", default=87.9e6,
                           help="Set a minimum frequency [default=%default]")
diff --git a/gr-uhd/examples/python/usrp_wxapt_rcv.py b/gr-uhd/examples/python/usrp_wxapt_rcv.py
index 6b57de3bc..aaf297089 100755
--- a/gr-uhd/examples/python/usrp_wxapt_rcv.py
+++ b/gr-uhd/examples/python/usrp_wxapt_rcv.py
@@ -46,7 +46,7 @@ class wxapt_rx_block (stdgui2.std_top_block):
                           help="set gain in dB (default is midpoint)")
         parser.add_option("-V", "--volume", type="eng_float", default=None,
                           help="set volume (default is midpoint)")
-        parser.add_option("-O", "--audio-output", type="string", default="",
+        parser.add_option("-O", "--audio-output", type="string", default="default",
                           help="pcm device name.  E.g., hw:0,0 or surround51 or /dev/dsp")
         parser.add_option("", "--freq-min", type="eng_float", default=137e6,
                           help="Set a minimum frequency [default=%default]")