On Fri, Apr 08, 2016 at 11:21:57AM -0400, Adam Goode wrote: > So there are 2 alternatives I can think of: > > option 1: introduce snd_seq_client_info_get_pid_2() and leave the existing > function alone. This new function can return a new constant, > SND_SEQ_CLIENT_INFO_PID_UNKNOWN for missing kernel support. Same for card. > option 2: introduce snd_seq_client_info_pid_known() that returns a bool if > there is kernel support. Same for card. I wouldn't implement option 1. Using that methode for API changes will result in lots of rarely used functions. Chrome will probable need that information to enable a fallback-code - if a application has no fallback code, it has no need for different returncodes. In a few years, most distributions will likely ship kernel including that functions, so there is no need to for fallback-code and the kernel support check any more. Why not a snd_seq_client_info_get_capatibilites() returing bit flags: .._CAP_CARD_NUMBER | .._CAP_PID ? Regards, Martin _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel