On Tue, 08 Mar 2016 23:06:47 +0100, Martin Koegler wrote:

From: Martin Koegler martin.koegler@chello.at

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 martin.koegler@chello.at

Applied, thanks.

Takashi

---

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 <samplerate.h>])

+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

---

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