Re: one tuner of a PVR-500 not returning any data

["Brian J. Murrell" <brian@interlinx.bc.ca>]

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On 12-11-22 07:33 AM, Brian J. Murrell wrote:
> I have a PVR-500 in a machine here where one of the /dev/video* devices
> can successfully be opened and return data while the other can be
> opened but returns to data to a read(2).  i.e.:
> 
> open("/dev/video3", O_RDONLY|O_LARGEFILE) = 3
> dup3(3, 0, 0)                           = 0
> close(3)                                = 0
> fstat64(0, {st_mode=S_IFCHR|0660, st_rdev=makedev(81, 11), ...}) = 0
> ioctl(0, SNDCTL_TMR_TIMEBASE or TCGETS, 0xbfc7f568) = -1 EINVAL (Invalid argument)
> mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7423000
> read(0, 
> 
> and the process blocks there.

FWIW, simply rmoving and inserting the ivtv module seems to have fixed this.

But really odd (to me at least) that it's just one tuner of a dual-tuner
card.  So like 1 piece of hardware, with only 1 submodule not working.

b.




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