Hello,

I'm developing an application using the pjSip library/framework using the ALSA library as the interface to the PCM audio devices. The audio device is a USB PIC presenting a single sound card with 4 devices (PIC code is still in development so ignore the examples names) - see output of aplay -l below...

When I launch my pjSip application (and the pjSIP test application) only the first device on my sound card is listed - see below....

My thoughts are that I need a custom card configuration file for my sound card so all four devices are present as specific devices but I cannot work out how to do this from the ALSA Project documentation. I assume I need a new entry in the /usr/share/alsa/cards/aliases.conf file and an equivalent [example].conf file. What needs to go into both of these files?

Any help would be greatly appreciated...

Thanks

Steve

[root@##########]# aplay -l **** List of PLAYBACK Hardware Devices **** card 0: Intel [HDA Intel], device 0: ALC662 rev1 Analog [ALC662 rev1 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: Intel [HDA Intel], device 1: ALC662 rev1 Digital [ALC662 rev1 Digital] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: Intel [HDA Intel], device 3: HDMI 0 [HDMI 0] Subdevices: 1/1 Subdevice #0: subdevice #0

card 1: Example [Harmony USB Headset Example], device 0: USB Audio [USB Audio] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: Example [Harmony USB Headset Example], device 1: USB Audio [USB Audio #1] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: Example [Harmony USB Headset Example], device 2: USB Audio [USB Audio #2] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: Example [Harmony USB Headset Example], device 3: USB Audio [USB Audio #3] Subdevices: 1/1 Subdevice #0: subdevice #0

[root@################]# pjsystest-i686-pc-linux-gnu 09:15:12.615 os_core_unix.c !pjlib 2.5.5 for POSIX initialized 09:15:12.621 sip_endpoint.c .Creating endpoint instance... 09:15:12.623 pjlib .select() I/O Queue created (0xa20aa00) 09:15:12.623 sip_endpoint.c .Module "mod-msg-print" registered 09:15:12.623 sip_transport. .Transport manager created. 09:15:12.624 pjsua_core.c .PJSUA state changed: NULL --> CREATED 09:15:12.624 sip_endpoint.c .Module "mod-pjsua-log" registered 09:15:12.624 sip_endpoint.c .Module "mod-tsx-layer" registered 09:15:12.624 sip_endpoint.c .Module "mod-stateful-util" registered 09:15:12.624 sip_endpoint.c .Module "mod-ua" registered 09:15:12.625 sip_endpoint.c .Module "mod-100rel" registered 09:15:12.625 sip_endpoint.c .Module "mod-pjsua" registered 09:15:12.625 sip_endpoint.c .Module "mod-invite" registered 09:15:12.897 alsa_dev.c ..ALSA driver found 18 devices 09:15:12.897 alsa_dev.c ..ALSA initialized 09:15:12.898 pjlib ..select() I/O Queue created (0xa23b4fc) WARNING: no real random source present! 09:15:12.910 sip_endpoint.c .Module "mod-evsub" registered 09:15:12.910 sip_endpoint.c .Module "mod-presence" registered 09:15:12.910 sip_endpoint.c .Module "mod-mwi" registered 09:15:12.910 sip_endpoint.c .Module "mod-refer" registered 09:15:12.910 sip_endpoint.c .Module "mod-pjsua-pres" registered 09:15:12.910 sip_endpoint.c .Module "mod-pjsua-im" registered 09:15:12.910 sip_endpoint.c .Module "mod-pjsua-options" registered 09:15:12.910 pjsua_core.c .1 SIP worker threads created 09:15:12.910 pjsua_core.c .pjsua version 2.5.5 for Linux-2.6.34.130/i686/glibc-2.12 initialized 09:15:12.910 pjsua_core.c .PJSUA state changed: CREATED --> INIT 09:15:12.910 pjsua_core.c PJSUA state changed: INIT --> STARTING 09:15:12.910 sip_endpoint.c .Module "mod-unsolicited-mwi" registered 09:15:12.911 pjsua_core.c .PJSUA state changed: STARTING --> RUNNING M E N U : --------- 0: Tests 00: Run test wizard 01: Device Test 02: Play Tone 03: Play WAV File1 04: Play WAV File2 05: Record Audio 06: Latency Test 07: AEC/AES Test

09: Exit 1: Options 10: View Devices 11: View Settings

Enter the menu number: 10 09:15:13.463 systest.c Running Audio Device List Audio Device List Found 18 devices 0: ALSA [default:CARD=Intel] (0/1) 1: ALSA [sysdefault:CARD=Intel] (0/1) 2: ALSA [front:CARD=Intel,DEV=0] (1/1) 3: ALSA [surround40:CARD=Intel,DEV=0] (1/1) 4: ALSA [surround51:CARD=Intel,DEV=0] (1/1) 5: ALSA [surround71:CARD=Intel,DEV=0] (1/1) 6: ALSA [iec958:CARD=Intel,DEV=0] (0/1) 7: ALSA [hdmi:CARD=Intel,DEV=0] (0/1) 8: ALSA [default:CARD=Example] (1/1) 9: ALSA [sysdefault:CARD=Example] (1/1) 10: ALSA [front:CARD=Example,DEV=0] (1/1) 11: ALSA [surround21:CARD=Example,DEV=0] (1/1) 12: ALSA [surround40:CARD=Example,DEV=0] (1/1) 13: ALSA [surround41:CARD=Example,DEV=0] (1/1) 14: ALSA [surround50:CARD=Example,DEV=0] (1/1) 15: ALSA [surround51:CARD=Example,DEV=0] (1/1) 16: ALSA [surround71:CARD=Example,DEV=0] (1/1) 17: ALSA [iec958:CARD=Example,DEV=0] (1/1)