Re: Kworld 315U and SAA7113?

[Franklin Meng <fmeng2002@yahoo.com>]

Actually I was a bit short sighted here.  I was referring to devices in the em28xx tree.  

In the case of the SAA7113 device, there really is no power saving feature unless a hardware pin is pulled down (or up I don't remember).  The pin will basically reset the device.  

>From my testing it seems like the power on defaults don't fully enable the device which is why I added the reinitialization to the s_power routine.  

Thanks,
Franklin Meng

--- On Thu, 1/14/10, Devin Heitmueller <dheitmueller@kernellabs.com> wrote:

> From: Devin Heitmueller <dheitmueller@kernellabs.com>
> Subject: Re: Kworld 315U and SAA7113?
> To: "CityK" <cityk@rogers.com>
> Cc: "Franklin Meng" <fmeng2002@yahoo.com>, linux-media@vger.kernel.org
> Date: Thursday, January 14, 2010, 2:09 PM
> On Thu, Jan 14, 2010 at 5:00 PM,
> CityK <cityk@rogers.com>
> wrote:
> > Franklin Meng wrote:
> >> As far as I can tell, the Kworld 315U is the only
> board that uses this combination of parts..  Thomson tuner,
> LG demod, and SAA7113.  I don't think any other device has
> used the SAA7113 together with a digital demod.  Most
> products seem to only have the SAA711X on an analog only
> board.  Since I don't have any other USB adapters with the
> SAA chip I was unable to do any further testing on the SAA
> code changes.
> >>
> >
> > IIRC, a couple of the Sasem/OnAir devices use a
> saa7113 together with a
> > digital demod. I seem to also recall something else,
> though maybe I'm
> > mistaken.
> 
> I'm actually not really concerned about it's interaction
> with a demod.
>  I'm more worried about other products that have
> saa711[345] that use
> a bridge other than em28xx.  The introduction of power
> management
> could always expose bugs in those bridges (I had this
> problem in
> several different cases where I had to fix problems in
> other drivers
> because of the introduction of power management).
> 
> Devin
> 
> -- 
> Devin J. Heitmueller - Kernel Labs
> http://www.kernellabs.com
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