[linux-audio-user] yamaha rp-u200 usb-audio and jack

jaap jacobus at free.fr
Mon Feb 16 18:15:50 EST 2004


Le Mon, Feb 16, 2004 at 12:04:19PM +0100, Clemens Ladisch a écrit...
> jaap wrote:
> > Ihave a yamaha rp-u200 usb "soundcard".
> >
> > Couldn't open hw:0,1 for 32bit samples trying 24bit instead
> > Couldn't open hw:0,1 for 32bit samples trying 24bit instead
> > Couldn't open hw:0,1 for 24bit samples trying 16bit instead
> > Sorry. The audio interface "hw:0,1" doesn't support any of the
> > hardware sample formats that JACK's alsa-driver can use.
> 
> What formats does the device actually support (see
> /proc/asound/card0/stream0)?
> 
> 

Well,I hope everything you want to know is below.Maybe you can make 
something out of it.(there is the output from jackd for hw:0,0 and 
hw:0,1 too.)

Ciao,
Jaap van Geffen


cat /proc/asound/card0/stream0:

YAMAHA Corporation YAMAHA RP-U200 USB Audio at usb-00:04.2-1.4 : USB Audio

Playback:
  Status: Stop
  Interface 1
    Altset 1
    Format: S16_LE
    Channels: 4
    Endpoint: 1 OUT (ADAPTIVE)
    Rates: 44100, 48000

cat /proc/asound/card0/stream1: 

YAMAHA Corporation YAMAHA RP-U200 USB Audio at usb-00:04.2-1.4 : USB Audio #1

Playback:
  Status: Stop
  Interface 1
    Altset 2
    Format: U8
    Channels: 1
    Endpoint: 1 OUT (ADAPTIVE)
    Rates: 48000

Capture:
  Status: Stop
  Interface 2
    Altset 1
    Format: S16_LE
    Channels: 2
    Endpoint: 1 IN (ASYNC)
    Rates: 44100, 48000
  Interface 2
    Altset 2
    Format: S24_3LE
    Channels: 2
    Endpoint: 1 IN (ASYNC)
    Rates: 44100, 48000


To be complet:

jackstart -Rv -d alsa -d hw:0,0  :    #for hw:0,0

back from read, ret = 1 errno == Success
getting driver descriptor from /usr/lib/jack/jack_dummy.so
getting driver descriptor from /usr/lib/jack/jack_alsa.so
jackd 0.94.0
Copyright 2001-2003 Paul Davis and others.
jackd comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to redistribute it
under certain conditions; see the file COPYING for details

registered builtin port type 32 bit float mono audio
capabilities: =i cap_setpcap,cap_ipc_lock,cap_sys_nice,cap_sys_resource+ep
loading driver ..
new client: alsa_pcm, id = 1 type 1 @ 0x8057cc8 fd = -1
creating alsa driver ... hw:0,0|hw:0,0|1024|2|48000|0|0|nomon|swmeter|rt|32bit
ALSA lib pcm_hw.c:1078:(snd_pcm_hw_open) open /dev/snd/pcmC0D0c failed: No such file or directory
jackstart: pcm.c:687: snd_pcm_nonblock: Assertion `pcm' failed.


jackstart -Rv -d alsa -d hw:0,1 :  #for hw:0,1

back from read, ret = 1 errno == Success
getting driver descriptor from /usr/lib/jack/jack_dummy.so
getting driver descriptor from /usr/lib/jack/jack_alsa.so
jackd 0.94.0
Copyright 2001-2003 Paul Davis and others.
jackd comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to redistribute it
under certain conditions; see the file COPYING for details

registered builtin port type 32 bit float mono audio
capabilities: =i cap_setpcap,cap_ipc_lock,cap_sys_nice,cap_sys_resource+ep
loading driver ..
new client: alsa_pcm, id = 1 type 1 @ 0x8057cc8 fd = -1
creating alsa driver ... hw:0,1|hw:0,1|1024|2|48000|0|0|nomon|swmeter|rt|32bit
control device hw:0
configuring for 48000Hz, period = 1024 frames, buffer = 2 periods
Couldn't open hw:0,1 for 32bit samples trying 24bit instead
Couldn't open hw:0,1 for 32bit samples trying 24bit instead
Couldn't open hw:0,1 for 24bit samples trying 16bit instead
Sorry. The audio interface "hw:0,1" doesn't support any of the hardware sample formats that JACK's alsa-driver can use.
ALSA: cannot configure playback channel
cannot load driver module alsa




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