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 <dheitmuel...@kernellabs.com> wrote: > From: Devin Heitmueller <dheitmuel...@kernellabs.com> > Subject: Re: Kworld 315U and SAA7113? > To: "CityK" <ci...@rogers.com> > Cc: "Franklin Meng" <fmeng2...@yahoo.com>, email@example.com > Date: Thursday, January 14, 2010, 2:09 PM > On Thu, Jan 14, 2010 at 5:00 PM, > CityK <ci...@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 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 > -- > To unsubscribe from this list: send the line "unsubscribe > linux-media" in > the body of a message to majord...@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html