> There is still a gap at the CA API, as there are three ioctls that are used > only by a few drivers and whose structs are not properly documented: > CA_GET_MSG, CA_SEND_MSG and CA_SET_DESCR. > > The first two ones seem to be related to a way that a few drivers > provide to send/receive messages. Yet, I was unable to get what > "index" and "type" means on those ioctls. The CA_SET_DESCR is > only supported by av7110 driver, and has an even weirder > undocumented struct. I was unable to discover at the Kernel, VDR > or Kaffeine how those structs are filled. I suspect that there's > something wrong there, but I won't risk trying to fix without > knowing more about them. So, let's just document that those > are needing documentation :-) > BTW, I just remembered dvblast app, part of videolan.org: http://www.videolan.org/projects/dvblast.html which is using CA_GET_MSG/CA_SEND_MSG: https://code.videolan.org/videolan/dvblast/blob/master/en50221.c /Honza
