> Andrew Waldram wrote: >> On Thu, 2006-10-19 at 17:04 -0400, Michael Krufky wrote: >>>>> The problem is not in the megasky m920x / gl861 driver itself -- >>>>> rather, >>>>> the qt1010 code is not complete. There are some pending patches on >>>>> the >>>>> linux-dvb list that you should feel welcome to try. I have not >>>>> applied >>>>> these yet, because I am unsure as to whether or not they are >>>>> appropriate. >>> >>> Even still, I dont think those patches will solve it entirely. As I >>> understand it, the qt1010 code was reverse engineered... This means >>> that >>> as it is now, it will probably only work for the tv standards used by >>> the >>> author who did that reverse engineering. >>> >>> If you're feeling adventurous, it might be a good idea to sniff usb >>> traffic from the windows driver, and see how the tuner is being >>> controlled. >> >> How right you are >> >> these patches do not help at all >> it does look like Malcolm could well be right. >> >> Is there any good documentation where to start sniffing/reverse >> engineering (I'm not stupid but pretty vague at times;-) ) > > Markus has some useful information on his wiki page: > > http://linuxtv.org/v4lwiki/index.php/Em2820 > > When reading this page, please keep in mind that the examples on it are > all > em28xx-based usb devices, so naturally not all of the information will > apply > exactly. However, the scripts in his v4l_experimental/em2880 directory > are > useful for any usb device. If you end up using the scripts in his tree > (located at http://linuxtv.org/hg/~mrechberger/v4l-dvb) , just remember to > use the modules from the megasky tree. :-) > > Good Luck, > > Mike > Had a look phew didn't understand 90% of it guess need to know about USB but did some research into uk/Austtralia offsets. the following is the range and ofsets for the UK frequenciesUK[]= { {474000000,850000000,8000000,INVERSION_OFF,BANDWIDTH_8_MHZ,FEC_AUTO,FEC_AUTO,QAM_AUTO,TRANSMISSION_MODE_2K,GUARD_INTERVAL_1_32,HIERARCHY_NONE,166670,-166670}, //Termination {0,0,0,INVERSION_AUTO,BANDWIDTH_AUTO,FEC_AUTO,FEC_AUTO,QAM_AUTO,TRANSMISSION_MODE_AUTO,GUARD_INTERVAL_AUTO,HIERARCHY_AUTO,0,0}, }; specifies a band between 474000000Hz and 850000000Hz stepped in 8000000Hz steps with two offsets (166670,-166670) to each frequency. (about 51 channels) >From this I can see why qt1010 insists my frequencies are invalid 85 if (freq % QT1010_MIN_STEP) 86 printk("frequency not supported.\n"); but havent the faintest how to resolve as it looks like its threaded troughout the code _______________________________________________ linux-dvb mailing list linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
