Suse 9.1 and DVB_TTUSB_BUDGET

Hello:

I have used Suse for many years at home and have just
upgraded to SuSE 9.1 in anticipation of upgrading all
of our servers at work to the Corporate version of 9.1
or new 9.2 to take advantage of the 2.6 kernel.

My family and I watch all our Television on the
Computer and have successfully used our Nova-T (TTUSB)
device for over a couple of years now in Suse pre 9.1
using the dvb-kernel drivers on a 2.4 kernel.

Since upgrading to Suse 9.1 however, I have had many
problems.

1.  The kernel that comes with the distro (download)
the built in DVB drivers, dvb_ttusb_budget and
alps_tdmb7, did not work .. or at least the frontend
alps_tdmb7 did not work.

2.  After updating the kernel to 2.6.5 -7.111 the
built in drivers did work and I was able to TZAP to
the channels .. however I was not able to watch the
DVB stream in xine or mplayer.

3.  The reason for this was an error in dmesg:
ttusb_start_iso_xfer: failed urb submission (0: err =
-22)!

4.  I wrote a posting on the linuxdvb site and
downloaded and installed the dvb-kernel CVS drivers
which had fixed this issue for some people, adding the
line urb->interval = 1; after urb->transfer_flags =
URB_ISO_ASAP; in the ttusb_start_iso_xfer function.

5.  However, this did not fix the issue.  I still get
the failed urb submission error.

6.  I just received an e-mail from one of the
developers of the dvb-kernel drivers that :

> you don't really have a choice and need
> to start to debug 
> the USB host driver. Try to find out at which point
> in the kernel USB 

7.  However, I am not sure how to do this... and also
since the technotrend / hauppauge ttusb is the most
popular DVB-T device, I figured someone must have had
this problem in SuSE 9.1 thus far and thought I would
write you.

8.  The only other pecularlity I can think of is that
I am also using an analogue tv card wintv card .. and
when I first loaded the 2.6.5-7.111 kernel it tried to
load the dvb_bt8** frontend driver which messed up my
analogue reception.  I had to change the dvb file in
init.d to only load the alps_tdmb7 frontend which I
have always used successfully and is the right one for
my ttusb device.

9.  If we can't get this to work .. how difficult is
it to go back to a 2.4 * kernel in Suse 9.1 .. as I
wold hate to have to go through all this work and then
go back to a previous distro.

And also the whole point of this was to test 9.1
before introducing it at work.

Thanks for your help.

David




	
	
		
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