benjamin@benjamin-MacPro:~$ jack_control ds alsa  dps capture none dps playback none
--- driver select "alsa"
--- driver param set "capture" -> "none"
--- driver param set "playback" -> "none"
benjamin@benjamin-MacPro:~$ jack_control dps device hw:Audio  dps rate 44100 dps period 1024  dps nperiods 2 start
--- driver param set "device" -> "hw:Audio"
--- driver param set "rate" -> "44100"
--- driver param set "period" -> "1024"
--- driver param set "nperiods" -> "2"
--- start
benjamin@benjamin-MacPro:~$ jack_lsp
Jack: JackClient::SetupDriverSync driver sem in flush mode
Jack: JackLinuxFutex::Connect name = jack_sem.1000_default_lsp
Jack: Clock source : system clock via clock_gettime
Jack: JackLibClient::Open name = lsp refnum = 5
system:capture_1
system:playback_1
system:playback_2
PulseAudio JACK Sink:front-left
PulseAudio JACK Sink:front-right
PulseAudio JACK Source:front-left
PulseAudio JACK Source:front-right
Jack: jack_client_close
Jack: JackClient::Close ref = 5
Jack: JackClient::Deactivate
Jack: JackSocketClientChannel::Stop
Jack: JackPosixThread::Kill
Jack: JackClientSocket::Close
Jack: JackClientSocket::Close
Jack: JackLibClient::~JackLibClient
Jack: JackShmReadWritePtr1::~JackShmReadWritePtr1 4
Jack: Succeeded in unlocking 422 byte memory area
Jack: JackLibGlobals Destroy 7d765310
Jack: ~JackLibGlobals
Jack: no message buffer overruns
Jack: JackPosixThread::Stop
Jack: JackPosixThread::ThreadHandler : exit
Jack: JackShmReadWritePtr::~JackShmReadWritePtr 1
Jack: Succeeded in unlocking 1187 byte memory area
Jack: JackShmReadWritePtr::~JackShmReadWritePtr 0
Jack: Succeeded in unlocking 82280346 byte memory area
Jack: jack_client_close res = 0
benjamin@benjamin-MacPro:~$