Dear Brijesh,
Regarding saLoopBackFbdev application,Querying and Setting dv_preset is failing,We have done the debug that, it shows the query_std api of subdevice ( adv7180) not got executed.
Our understanding is,once set dv_preset got success in turn to call call update_std_info,where we assign the inst.video buf params interlaced or not.Please correct if anything wrong in that.
Hence,we request you that to provide any updated adv7180 driver. For your information,we are using
Linux Kernel : linux-2.6.37-psp04.04.00.01 .
thanks
senthil nathan.D.