[linux-dvb] TwinHan Vison Plus DST Problems

Andrew atp3 at optusnet.com.au
Sun Jun 5 17:15:11 CEST 2005

On Sunday 05 June 2005 22:37, Richard Lewis wrote:
> Hi Arne, everyone else,
> Thanks for the config, but I don't actually think there is anything
> wrong with the kernel configuration any more.
> I have been doing a bit more "digging" this morning, using strace to
> determine exactly what is going on with the ioctl request.
> Here is some of the output from strace when used with tzap:
> open("/dev/dvb/adapter0/frontend0", O_RDWR) = 3
> ioctl(3, 0x80a86f3d, 0xbffff530)        = -1 EINVAL (Invalid argument)
> According to the ioctl man pages, this indicates that the request
> (0x80a86f3d) or the pointer (0xbffff530) used in the ioctl call is invalid.
> Looking at tzap.c (where setup_frontend makes the call to ioctl) I can
> see that the third parameter (argp / 0xbffff530) is first referenced
> immediately before the call, and is simply used to store the returned
> info. Therefore the problem must lie with the second parameter
> (FE_GET_INFO) which is defined in
> dvb-apps/include/linux/dvb/frontend.h... However, this, and all the
> components of the struct seem fine.
> Arrggggggg!!! :( It can't be this complicated, I'm sure I'm just missing
> something really, really simple. Any suggestions, any at all, even
> really stupid ones would be gratefully appreciated. And yeah, I have
> already considered that demon possession of my computer could be the
> root cause. I have a team of priests coming over this afternoon to
> perform an exorcism on the comp... but just in case that doesn't work,
> let me know what you think.
> Thanks again,
> Wolvie
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Maybe rebuild tzap, could be changes in dvb include files???  

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