Re: gscanbus results on via mini-itx board + iSight

just wanted to remove some confusion, the
> raw1394_io errno: 11 sd.errcode -1102
I reported on in the previous post was a fpritnf
_I_ added to the SYNCFUNC_BODY macro
in libraw1394/.../readwrite.c to try and track down
the errors (should have pointed that out when I
included the output).

The 20 repetitions of that are from the MAXTRIES
in gscanbus/raw1394util.c routine cooked1394_read .
The -1102 error is a timeout. But why reads to the
iSight time out on the mini-itx but not on other
boxes while other 1394 devices on the mini-itx do not,
is still a complete mystery.

As always, suggestions welcome.
  -jrg
On Sep 7, 2004, at 12:26 PM, john Galloway wrote:

> Running gscanbus on my Dell with no fw devices
> gscan bus reports on the host controler fine.
> If the Apple iSight is connected it gets 2-5
> instances of
> raw1394_io errno: 11 sd.errcode -1102
>
> but still ends up showing the host controler
> and the Apple iSight fine. (and it works on
> this system).
>
> On my VIA mini-itx board with builtin fw (from
> VIA), gscanbus reports on the host controller alone
> fine, just a fw hard drive also reports fine. But
> if the iSight is conneted I get two rounds of
>
> 20 lines of
> raw1394_io errno: 11 sd.errcode -1102
> followed by
> Error while reading from IEEE1394: : Resource temporarily unavailable
> 0/0x0000fffff0000400: read failed
> 0/0x0000fffff0000400: wrong bus info block length
>
> and gscanbus sees something there, but it has a ?
> over it. So it looks like the iSight gives both
> systems a bit of a hard time, requring retries but
> that on the Dell this works, while on the VIA it
> fails. It feels like (but I don't know this) that
> there is a wait in the retry and that the wait is
> shorter (or 0) on the VIA (a 1Ghz P3 equiv) Vs the
> Dell (a 2.8G P4).
>
> Both systems are running a 2.6.8.1 kernel with all
> 1394 modules built-in.
>
> Any thoughts?
> -jrg
>
>
>
>
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