Actually it based on pac7302. Pac7311/02 also has support ( since gspca1 ). I checked some old logs of the pac, and the driver init for 7302 seems ok. The "ff ff ff" sequence, seems to been taken in account on conversion. (libv4lconvert) /* Special Pixart versions of the *_nbits functions, these remove the special ff ff ff xx sequences pixart cams insert from the bitstream */ #define pixart_fill_nbits(reservoir,nbits_in_reservoir,stream,nbits_wanted) \ This is really a tricky cam. I be back on windows to do further test. pd: Nemeth, i could reproduce your problems now. 2009/9/13 Németh Márton <nm127@xxxxxxxxxxx>: > Jean-Francois Moine wrote: >> On Fri, 11 Sep 2009 09:09:20 +0200 >> Németh Márton <nm127@xxxxxxxxxxx> wrote: >> >>> You can find my results at >>> http://v4l-test.sourceforge.net/results/test-20090911/index.html >>> There are three types of problems: a) Sometimes the picture contains >>> a 8x8 pixel error, like in image #9 >>> http://v4l-test.sourceforge.net/results/test-20090911/index.html#img00009 >>> b) Sometimes the brightness of the half picture is changed, like in >>> images #7, #36 and #37 >>> http://v4l-test.sourceforge.net/results/test-20090911/index.html#img00007 >>> http://v4l-test.sourceforge.net/results/test-20090911/index.html#img00036 >>> http://v4l-test.sourceforge.net/results/test-20090911/index.html#img00037 >>> c) Sometimes the libv4l cannot convert the raw image and the errno is >>> set to EAGAIN (11), for example image #1, #2 and #3 >>> >>> Do you know how can I fix these problems? >> >> The error EAGAIN is normal when decoding pac7311 images, because they >> are rotated 90°. But this error should occur one time only. > > I have the feeling that the Labtec Webcam 2200 is not based on the PAC7311 > but on PAC7312. The PAC7312 also contains a microphone input and the > Labtec Webcam 2200 also have a built-in microphone. > See http://www.pixart.com.tw/productsditel.asp?ToPage=1&productclassify_id=12&productclassify2_id=33 > for the datasheets. See also http://labtec.com/index.cfm/gear/details/EUR/EN,crid=30,contentid=761 . > >> I looked at the raw image #1, and it seems that there are JPEG errors >> inside (sequences ff ff). There should be a problem in the pac7311 >> driver. Hans, may you confirm? >> > > -- 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
