> > Is there any frontend to use this feature?
>
> Yes, there are a few. Your question prompted me to try the two i had 
> installed a while ago
> - gnomeradio and gqradio. I can't get either of them to deliver the sound 
> thus far; however, > i think gnomeradio is now closer to functioning for me 
> (after the upgrade to 0.3.9) - its
> tuned-in indicator lights up at station frequencies (although misreporting 
> stereo as mono)
>
> The above notwithstanding i am glad to have the command-line "ivtv-radio" 
> working!

With the pvr-350 at least, the problem seems to be that the radio
programs don't play the sound, just tune. You could always just "aplay
-f dat < /dev/video24" then run the radio program then kill aplay. I
edited mythtv's mythFM addon so I could just use that:

How to make the MythFM plugin work with the passthrough mode of the pvr-350:
1. add
    #define IVTV_IOC_PASSTHROUGH       _IOW ('@', 53, int)
 to the end of v4lradio.h
2. add
    int pass = 1;
    ioctl(m_radio_fd, IVTV_IOC_PASSTHROUGH, &pass);
  to the end of "void V4LRadio::radio_init()" in v4lradio.cpp
3. add
    int pass = 0;
    ioctl(m_radio_fd, IVTV_IOC_PASSTHROUGH, &pass);
  before
    if (m_radio_fd >= 0) close (m_radio_fd);
  in "void V4LRadio::radio_done()" in v4lradio.cpp


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