Hi, As far as I remember, earlier dm644x capture code was not supporting user pointer buffer exchange mechanism. Can you tell me which error you are getting? Does it allow to do reqbuf?
Thanks, Brijesh Jadav -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Andrea Gasparini Sent: Friday, November 28, 2008 4:55 PM To: [email protected] Cc: Mr. V R Subject: Re: Need help with V4L2 USERPTR method Hi, Mr. V R spiffera, alle Friday 28 November 2008 circa: > 1. The sample code without modification in buffer size works well with > MMAP but fails in USERPTR > 2. If we provide buffer more then or equal to 884736, capture is > possible with USERPTR, but driver does not copy frame in the buffer. > > I am badly stuck here, any pointer will be appreciated. Check your kernel has CONFIG_CAPTURE_DAVINCIHD configured. Moreover, try to retrieve the error code and take a look at the kernel source code to guess what problem could give you that error code. bye! -- Andrea Gasparini ---- ImaVis S.r.l. ---- web: www.imavis.com _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
