On 6/24/05, Keith C <[EMAIL PROTECTED]> wrote:
> On Jun 24, 2005, at 4:42 PM, Mark Knecht wrote:
>
> >
> > Interesting. I'm a hardware guy with a bit of PCI background. Do you
> > know how are they placing two turners on the same card? Are the tuners
> > PCI devices and then the card has a PCI bridge?
>
> Looks like it is :
>
> 01:08.0 PCI bridge: Hint Corp HB6 Universal PCI-PCI bridge (non-
> transparent mode) (rev 11) (prog-if 00 [Normal decode])
> Flags: bus master, medium devsel, latency 32
> Bus: primary=01, secondary=02, subordinate=02, sec-latency=32
> Prefetchable memory behind bridge: d8000000-dfffffff
> Capabilities: [80] Power Management version 2
> Capabilities: [90] #06 [0000]
and for my 1394 USB device which doesn't work, or doesn't work well:
0000:01:01.0 PCI bridge: Hint Corp HB6 Universal PCI-PCI bridge
(non-transparent mode) (rev 11) (prog-if 00 [Normal decode])
Flags: bus master, medium devsel, latency 32
Bus: primary=01, secondary=02, subordinate=02, sec-latency=32
Memory behind bridge: f5000000-f50fffff
Capabilities: [80] Power Management version 2
Capabilities: [90] #06 [0080]
So, it appears that we both have the same bridge.
I am a little concerned about the latency=32 settings when this
message appears in dmesg:
<snip>
ivtv: Unreasonably low latency timer, setting to 64 (was 32)
<snip>
>From memory, meaning I'd need to review the PCI spec for this, if ivtv
is doing this to only the Hauppauge card and not to all the devices on
the bridge's primary PCI bus then this could possibly result in some
problems.
> >
> > 1) I'm interested in getting a dual tuner card that might actually
> > work reliably
> >
>
> It works just fine. In fact, I think I've seen it poking my
> pcHDTV-3000 and making fun of it in the school yard. I shouldn't be
> so hard on it though, it IS working now, it just wasn't nearly as
> easy as the ivtv stuff.
So maybe my guess about the bridge being the issue wasn't correct.
Cool. Glad you card works and glad to sort of eliminate that as a
specific issue on my card.
>
> > 2) I have a combo USB2.0/1394 card that uses a PCI Bridge and works
> > great under Windows but doesn't work under Linux.
>
> Combo anything scares me. Combo media readers (compact flash+MMC,
> etc) never work right without a driver, etc. My stupid HP print/scan/
> fax/copy/emptybankaccount printer sucks equally as much.
>
Yeah, but it appears that your combo tuner card does. That's good,
right? I got this card a few years ago, and as I say, it worked fine
AFAICT under Windows. In my case it's likely that the 1394 stack isn't
working quite right with this OHCI adapter.
Thanks for the data.
Cheers,
Mark
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