Hi Friends, I am adding H/W video codec support to opencore and the implementation pseudocode is as follows :
1. setup signal handler for SIGIO 2. Send encoded data to h/w decoder 3. call sigsuspend() , after masing (sigprocmask) all other signals except SIGIO. 4. driver will send SIGIO once end of decoding by h/w. 5. User space process will wake-up and process decoded data . Here, SIGIO is received by signal handler, but my user-space process (open core decoder node process) is hanged and never wakes-up and hence blocked within sigsuspend() . Can anyone throw some ideas if you have faced similar problem ? PS : I couldn't find any problem with signal handling mechanism as i test on my host pc, with similar implementation. Regards, Shankar -- unsubscribe: android-porting+unsubscr...@googlegroups.com website: http://groups.google.com/group/android-porting
