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Martin Koegler e0e3ce5f71 seq: Provide sequencer sound card number / PID via alsa-lib 
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 changes adds support for exposing the card number for kernel clients
as well as the PID for user client.

It supports kernels with and without the required support.

Signed-off-by: Martin Koegler <martin.koegler@chello.at>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-03-08 10:57:18 +01:00
..
sound seq: Provide sequencer sound card number / PID via alsa-lib 2016-03-08 10:57:18 +01:00
alisp.h Changed Jaroslav Kysela's e-mail from perex@suse.cz to perex@perex.cz 2007-10-15 10:24:55 +02:00
alsa-symbols.h Changed Jaroslav Kysela's e-mail from perex@suse.cz to perex@perex.cz 2007-10-15 10:24:55 +02:00
aserver.h Remove unused hostname resolution in shm plugins and aserver 2015-01-28 16:23:06 +01:00
asoundef.h IEC958 definition for consumer status channel update 2008-08-01 13:17:52 +02:00
asoundlib-head.h Portability fix: look for sys/endian.h as well as endian.h 2014-02-24 11:00:53 +01:00
asoundlib-tail.h Create asoundlib.h dynamically according to configure options 2007-07-10 15:58:41 +02:00
bswap.h Introduce bswap.h for portable definitions of byte swap macros. 2016-03-03 16:18:10 +01:00
conf.h Replace unsafe characters with _ in card name 2015-06-29 20:33:26 +02:00
control.h Use __inline__ for exported headers 2013-04-25 09:52:33 +02:00
control_external.h all places: doxygen cleanups 2013-04-08 16:42:24 +02:00
error.h all places: doxygen cleanups 2013-04-08 16:42:24 +02:00
global.h include/global.h - don't define timeval and timespec structures for !glibc 2013-11-08 12:34:44 +01:00
hwdep.h hwdep: add FireWire digi00x/tascam driver support 2015-10-05 23:43:29 +02:00
iatomic.h alsa-lib: heavy pcm atomics cleanup 2014-02-11 13:45:16 +01:00
input.h Changed Jaroslav Kysela's e-mail from perex@suse.cz to perex@perex.cz 2007-10-15 10:24:55 +02:00
list.h Replace list.h with its own version 2015-07-27 12:39:54 +02:00
local.h Define some types if missing 2016-03-03 10:59:52 +01:00
Makefile.am Introduce bswap.h for portable definitions of byte swap macros. 2016-03-03 16:18:10 +01:00
mixer.h all places: doxygen cleanups 2013-04-08 16:42:24 +02:00
mixer_abst.h implemented integer volume <-> dB volume conversion functions for simple mixer 2008-04-21 11:44:20 +02:00
output.h Changed Jaroslav Kysela's e-mail from perex@suse.cz to perex@perex.cz 2007-10-15 10:24:55 +02:00
pcm.h pcm: Fix doxygen for two enums 2015-08-24 22:26:11 +02:00
pcm_external.h Fix documentation of external PCM plugin SDK 2005-05-24 09:42:01 +00:00
pcm_extplug.h Use __inline__ for exported headers 2013-04-25 09:52:33 +02:00
pcm_ioplug.h all places: doxygen cleanups 2013-04-08 16:42:24 +02:00
pcm_old.h Move old PCM API to pcm_old.h 2005-04-14 14:01:10 +00:00
pcm_plugin.h Changed Jaroslav Kysela's e-mail from perex@suse.cz to perex@perex.cz 2007-10-15 10:24:55 +02:00
pcm_rate.h Query the supported rate ranges from rate plugins 2009-06-02 16:26:03 +02:00
rawmidi.h Remove assert from header files 2007-10-25 15:36:03 +02:00
search.h Corrections by Kevin Conder <kconder@interaccess.com> 2002-03-12 20:14:33 +00:00
seq.h seq: Provide sequencer sound card number / PID via alsa-lib 2016-03-08 10:57:18 +01:00
seq_event.h all places: doxygen cleanups 2013-04-08 16:42:24 +02:00
seq_midi_event.h Changed Jaroslav Kysela's e-mail from perex@suse.cz to perex@perex.cz 2007-10-15 10:24:55 +02:00
seqmid.h Changed Jaroslav Kysela's e-mail from perex@suse.cz to perex@perex.cz 2007-10-15 10:24:55 +02:00
sys.h Ok, added warning to sys/asoundlib.h with redirection to alsa/asoundlib.h. 2001-09-11 12:18:56 +00:00
timer.h Defined symbols exposing the hrtimer to applications. 2009-11-08 09:21:56 +01:00
topology.h topology: remove little endian type from userspace header 2015-11-09 08:38:35 +01:00
type_compat.h Add more compatibility defines. 2016-03-03 16:18:54 +01:00
use-case.h ucm: docs: Fix doxygen formatting for UCM main page. 2015-06-29 17:44:00 +02:00