Antonio Ospite wrote: > On Wed, 3 Mar 2010 02:27:38 +0000 > "M.Ebrahimi" <m.ebrahimi@xxxxxxxx> wrote: > > > On 2 March 2010 16:06, Max Thrun <bear24rw@xxxxxxxxx> wrote: > > > > > > > > > On Tue, Mar 2, 2010 at 10:39 AM, Antonio Ospite <ospite@xxxxxxxxxxxxxxxxx> > > > wrote: > [...] > > >> Mosalam did you spot the register from a PS3 usb dump or by looking at > > >> the sensor datasheet? > > > > None, I got that register from sniffing a Windows driver for another > > camera that turned out to be using ov7620 or something similar, though > > I thought it has the same sensor. I double checked, this register is > > for frame rate adjustment (decreasing frame rate / increasing > > exposure) . And this has been used in some other drivers (e.g. > > gspca_sonixb) to remove light flicker as well. > > > > I see. It would be interesting to see how Powerline Frequency filtering > is done on PS3. I added Jim Paris on CC. Hi Antonio and Mosalam, I tried, but I can't capture that. My USB logger only does USB 1.1, which is too slow for the camera to run normally, but good enough to see the initialization sequence. However, the 50/60Hz option only appears later, once the PS3 is receiving good frame data. I can open up the camera and sniff the I2C bus instead. It'll take a little longer. Interesting side note, the only change in the initialization sequence between PS3 firmware 1.93 and 3.15 is 0x0C bit 6 -- horizontal flip :) So they haven't made any improvements that we can borrow. -jim -- 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
