From mboxrd@z Thu Jan 1 00:00:00 1970 From: Martin Koegler Subject: [PATCH] Show sequencer sound card numer/PID via aconnect Date: Tue, 8 Mar 2016 23:06:47 +0100 Message-ID: <1457474807-10240-1-git-send-email-martin@mail.zuhause> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from vie01a-dmta-pe04-1.mx.upcmail.net (vie01a-dmta-pe04-1.mx.upcmail.net [62.179.121.163]) by alsa0.perex.cz (Postfix) with ESMTP id DF5EC260515 for ; Wed, 9 Mar 2016 08:57:51 +0100 (CET) Received: from [172.31.216.44] (helo=vie01a-pemc-psmtp-pe02) by vie01a-dmta-pe04.mx.upcmail.net with esmtp (Exim 4.72) (envelope-from ) id 1adZ0B-0003Qa-GN for alsa-devel@alsa-project.org; Wed, 09 Mar 2016 08:57:51 +0100 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org To: alsa-devel@alsa-project.org Cc: Martin Koegler List-Id: alsa-devel@alsa-project.org From: Martin Koegler rawmidi devices expose the card number via IOCTLs, which allows to find the corresponding device in sysfs. The sequencer provides no identifing data. Chromium works around this issue by scanning rawmidi as well as sequencer devices and matching them by using assumtions, how the kernel register sequencer devices. This patch adds support for displaying the sound card number/PID to aconnect. Signed-off-by: Martin Koegler --- configure.ac | 9 +++++++++ seq/aconnect/aconnect.c | 17 ++++++++++++++++- 2 files changed, 25 insertions(+), 1 deletion(-) diff --git a/configure.ac b/configure.ac index bdb133c..9e48190 100644 --- a/configure.ac +++ b/configure.ac @@ -41,6 +41,15 @@ AC_CHECK_HEADERS([alsa/topology.h], [have_topology="yes"], [have_topology="no"], AC_CHECK_HEADERS([samplerate.h], [have_samplerate="yes"], [have_samplerate="no"], [#include ]) +AC_CHECK_LIB([asound], [snd_seq_client_info_get_card], [HAVE_SEQ_CLIENT_INFO_GET_CARD="yes"]) +if test "$HAVE_SEQ_CLIENT_INFO_GET_CARD" = "yes" ; then + AC_DEFINE([HAVE_SEQ_CLIENT_INFO_GET_CARD], 1, [alsa-lib supports snd_seq_client_info_get_card]) +fi +AC_CHECK_LIB([asound], [snd_seq_client_info_get_pid], [HAVE_SEQ_CLIENT_INFO_GET_PID="yes"]) +if test "$HAVE_SEQ_CLIENT_INFO_GET_PID" = "yes" ; then + AC_DEFINE([HAVE_SEQ_CLIENT_INFO_GET_PID], 1, [alsa-lib supports snd_seq_client_info_get_pid]) +fi + AM_CONDITIONAL(HAVE_PCM, test "$have_pcm" = "yes") AM_CONDITIONAL(HAVE_MIXER, test "$have_mixer" = "yes") AM_CONDITIONAL(HAVE_RAWMIDI, test "$have_rawmidi" = "yes") diff --git a/seq/aconnect/aconnect.c b/seq/aconnect/aconnect.c index 8d6cebb..85a7770 100644 --- a/seq/aconnect/aconnect.c +++ b/seq/aconnect/aconnect.c @@ -166,11 +166,26 @@ static void print_port(snd_seq_t *seq, snd_seq_client_info_t *cinfo, snd_seq_port_info_t *pinfo, int count) { if (! count) { - printf(_("client %d: '%s' [type=%s]\n"), + int card = -1, pid = -1; + + printf(_("client %d: '%s' [type=%s"), snd_seq_client_info_get_client(cinfo), snd_seq_client_info_get_name(cinfo), (snd_seq_client_info_get_type(cinfo) == SND_SEQ_USER_CLIENT ? _("user") : _("kernel"))); + +#ifdef HAVE_SEQ_CLIENT_INFO_GET_CARD + card = snd_seq_client_info_get_card(cinfo); +#endif + if (card != -1) + printf(",card=%d", card); + +#ifdef HAVE_SEQ_CLIENT_INFO_GET_PID + pid = snd_seq_client_info_get_pid(cinfo); +#endif + if (pid != -1) + printf(",pid=%d", pid); + printf("]\n"); } printf(" %3d '%-16s'\n", snd_seq_port_info_get_port(pinfo), -- 2.1.4