#530 Tuner refuses to tell us the current frequency:

[Anonymous]

Using the pcHDTV HD-3000 card on /dev/video1

cx88[1]: subsystem: 7063:3000, board: pcHDTV HD3000
HDTV [card=22,autodetected]
tuner 3-0061: chip found @ 0xc2 (cx88[1])
tuner 3-0061: type set to 52 (Thomson DDT 7610 (ATSC/NTSC))
tda9885/6/7: chip found @ 0x86
cx88[1]/0: found at 0000:01:0a.0, rev: 5, irq: 11,
latency: 32, mmio: 0xe3000000
cx88[1]/0: registered device video1 [v4l2]
cx88[1]/0: registered device vbi1
cx88[1]/0: registered device radio1

Message output from TVTime are:

videoinput: Tuner refuses to tell us the current
frequency: Invalid argument
videoinput: Please file a bug report at http://tvtime.net/
Restarting tvtime.
Reading configuration from /etc/tvtime/tvtime.xml
Reading configuration from /home/vw/.tvtime/tvtime.xml
videoinput: Tuner refuses to tell us the current
frequency: Invalid argument
videoinput: Please file a bug report at http://tvtime.net/

Same from Gentoo and fc3

Thanks for your efforts, I hope this helps!

[Steven Walter]

Logged In: YES
user_id=175708

I too have this problem and have corrected it. The issue is
that tvtime does not initialize the v4l2_frequency structure
that it passes into VIDIOC_G_FREQUENCY. The cx88 driver
checks that freq->tuner == 0, failing with -EINVAL if this
is not the case. I suppose this makes sense for cards that
could have multiple tuners.

In any case, this patch fixes it

--- tvtime-0.9.15/src/videoinput.c 2004-10-20
11:17:31.000000000 -0400
+++ tvtime-new/src/videoinput.c 2005-04-19
20:10:25.000000000 -0400
@@ -1289,6 +1289,8 @@
if( vidin->isv4l2 ) {
struct v4l2_frequency freqinfo;

+ freqinfo.tuner = 0;
+
if( ioctl( vidin->grab_fd, VIDIOC_G_FREQUENCY,
&freqinfo ) < 0 ) {
fprintf( stderr, "videoinput: Tuner refuses
to tell us the current frequency: %s\n",
strerror( errno ) );

[Billy Biggs]

Logged In: YES
user_id=153320

Fixed by the 0.99 release I just posted. Sorry for the trouble.