[linux-dvb] dnt Euro Stick DVB-T -- FATAL: FE_GET_INFO failed: 22 Invalid argument

Michael Hanke michael.hanke at gmail.com
Sun Dec 11 09:28:09 CET 2005


On Sat, Dec 10, 2005 at 10:55:51PM +0100, Johannes Stezenbach wrote:
> On Sat, Dec 10, 2005, Michael Hanke wrote:
> > using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
> > main:1885: FATAL: FE_GET_INFO failed: 22 Invalid argument
> > 
> > But this time I discovered an additional error message in the dmesg
> > output when the scan attempt fails:
> > 
> > ioctl32(scan:5694): Unknown cmd fd(3) cmd(80a86f3d){00} arg(08050260) on
> > /dev/dvb/adapter0/frontend0
> > 
> > What does that mean?
> > 
> > There might be one thing that could be a problem. I'm using an AMD64
> > kernel but the userspace is all 32bit. This was no problem for any part
> > of the system till now, but I don't now whether it is one for the issue.
> 
> The error message is emitted from
> linux/fs/compat.c:compat_ioctl_error().
> 
> However, AFAIK there are no 32/64bit problems in DVB ioctl
> definitions (otherwise we'd have to define compat_ioctl
> translation hooks).
> 
> Are you sure your devices nodes are properly defined?
> 
> $ l /dev/dvb/adapter0/frontend0
> crw-rw---- 1 root video 212, 3 Dec  5 13:14 /dev/dvb/adapter0/frontend0
I think the nodes are ok:

$ ll /dev/dvb/adapter0/
insgesamt 0
crw-rw----  1 root video 212, 4 2005-12-11 09:20 demux0
crw-rw----  1 root video 212, 5 2005-12-11 09:20 dvr0
crw-rw----  1 root video 212, 3 2005-12-11 09:20 frontend0
crw-rw----  1 root video 212, 7 2005-12-11 09:20 net0

I'm still trying, but made no progress so far. Am I right to assume
that anyone has this device running (or that it should be possible).
I'm asking, because I still have the option to send this thing back 
and get a different one. But I would prefer to keep it.

Thanks for your effort.

Cheers,

Michael

-- 
GPG key:  1024D/3144BE0F Michael Hanke
http://apsy.gse.uni-magdeburg.de/hanke
ICQ: 48230050
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