[linux-dvb] No more than 4 cards with DIB0700 driver ?

Florian FAINELLI Florian.Fainelli at int-evry.fr
Wed Feb 14 16:38:19 CET 2007


Hi Janne,

Thank you very much for this specific answer. Do you know why this limitation
exists ? Is this related to bandwidth available with USB busses or too many
interrupts generated by 5 cards (10 tuners) at the same time ?

Regards, Florian

Selon Janne Grunau <janne-dvb at grunau.be>:

> On Wednesday 14 February 2007 16:18:53 Florian FAINELLI wrote:
> > Hi all,
> >
> > I just saw that the 5 Hauppauge Nova-T 500 cards that I have set up
> > are well recognized by the "lsusb" command.
> >
> > The dib0700 driver loads fine for 4 cards, but the fith generates an
> > error "dvb-usb: Hauppauge Nova-T 500 Dual DVB-T error while loading
> > the driver (-23)".
> >
> > I did not yet dig that much into the code, but I do not see any
> > reasons why I could not register more than 4 cards.
>
> linux/drivers/media/dvb/dvb-core/dvbdev.c:57:#define DVB_MAX_ADAPTERS       8
>
> that's the limiting option. Each of your card registers two adapter,
> one for each tuner.
>
> Applications may have the same limitation.
>
> HTH Janne
>
> _______________________________________________
> linux-dvb mailing list
> linux-dvb at linuxtv.org
> http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
>




----------------------------------------------------------------
This message was sent using IMP, the Internet Messaging Program.



More information about the linux-dvb mailing list