RE: [libdc1394-devel] Recurring problems with camera connection

[Damien D. <d.d...@te...>]

On Mon, 2003-09-15 at 16:41, Okerholm, Andrea M. wrote:
> We are using kernel 2.4.18-27.8.0 , so the attempt_root command should wo=
rk.
> Yet it does not? Does the latest kernel fix the problem that required
> attempt_root =3D 1?

Yes, this was fixed in 2.4.22. Please try this version. (the
attempt_root parameter was just a quick hack)

> Also I cannot reload the drivers other than rebooting because it says the=
y
> are "in use". How do I get around this?

When this happens, rebooting is the only option I know...

Damien

> Andrea
>=20
> -----Original Message-----
> From: Damien Douxchamps [mailto:d.d...@te...]
> Sent: Monday, September 15, 2003 8:24 AM
> To: Okerholm, Andrea M.
> Cc: 'lib...@li...'
> Subject: Re: [libdc1394-devel] Recurring problems with camera connection
>=20
>=20
> Hi Andrea,
>=20
> On Thu, 2003-09-11 at 21:17, Okerholm, Andrea M. wrote:
> > I have a setup with one computer (RedHat 8) and one camera. Using my ow=
n
> > software or the Coriander program, I have continually had the following
> two
> > problems:
> >=20
> > - (usually after a segfault) cannot set video mode 65
> > If I re-attempt enough, eventually I can't see the camera at all and ha=
ve
> to
> >=20
> > reset the camera. Often that's not enough and a reboot (or four) is
> required
> > to get
> > back to operating conditions.
>=20
> I also sometimes have erratic behaviors after a segfault (it also
> depends on the camera). Reloading the modules immediately after the
> fault usually avoids further problems.
>=20
> > - (even though I do have attempt_root=3D1 in rc.sysinit) the camera end=
s up
> > being the root node
> > Sometimes a reset fixes this but usually it requires a reboot.
>=20
> The attempt_root parameter is deprecated as of kernel version 2.4.21.
> Updating your kernel to 2.4.22 will probably solve this issue.
>=20
> Cheers,
>=20
> Damien
>=20
> --=20
>   _    Damien Douxchamps
>  (=B0-   PhD Student / Research Assistant
>  //\   Image Processing Group, Telecom Laboratory, UCL, Belgium
>  V_/_  http://www.tele.ucl.ac.be/MEMBERS/Douxchamps_Damien_e.html
>=20
>=20
>=20
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>=20
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>=20
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--=20
  _    Damien Douxchamps
 (=B0-   PhD Student / Research Assistant
 //\   Image Processing Group, Telecom Laboratory, UCL, Belgium
 V_/_  http://www.tele.ucl.ac.be/MEMBERS/Douxchamps_Damien_e.html