Jean Delvare wrote: > On Mon, 06 Apr 2009 23:10:36 +0200, hermann pitton wrote: > >> Am Montag, den 06.04.2009, 10:40 +0200 schrieb Jean Delvare: >> >>> Anyone out there with a MSI TV@nywhere Plus that could help with >>> testing? >>> >> Here is a link to one of the initial reports by Henry, others are close >> to it. >> >> http://marc.info/?l=linux-video&m=113324147429459&w=2 >> >> There are two different variants of that MSI card, but that undocumented >> KS003 chip is the same on them. >> > > Great, thanks for the pointer. If I understand correctly, the KS003 > has a state machine flow which causes the chip to stop answering when > an invalid address is used on the bus and start answering again when a > valid address other than his own is used. As the old i2c model relied a > lot on probing, I am not surprised that this was a problem in the past. > But with the new model, probes should become infrequent, so I suspect > that the workaround may no longer be needed... except when i2c_scan=1 > is used. > > I'd rather keep the workaround in place for the time being, and only > once the ir-kbd-i2c changes have settled, try to remove it if someone > really cares. Regarding the KS003 (& KS007; the other "mystery" chip): Upon further investigation of some info from a post from last year (http://www.linuxtv.org/pipermail/linux-dvb/2008-January/022634.html), it appears that these (assuming that they are the same IC across the various MSI, Leadtek & KWorld cards; and I believe that to be true) are the "AT8PS54/S56" chip from "Feeling Technology" ... the datasheet for that part is available through a google search .... probing further (as I had never heard of FT before and so I looked them up), it looks like FT renamed and/or upgraded the chip to the "FM8PS54/S56" ... the near identical datasheet for that second version is also available: http://www.feeling-tech.com.tw/km-master/front/bin/ptdetail.phtml?Part=M1-05&Category=100018 -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
