Hi,
I have an AudioScience card running on a Sun 4100 with Linux Ubuntu
6.10.
I had to re-compile kernel and alsa with a gcc 3.X as it was not
working with gcc4. Now everything is OK.
The card can play/record sound with the aplay/arecord tool like :
# arecord -fdat -Dhw:0,0,0 -vvv /tmp/test1
Recording WAVE '/tmp/test1' : Signed 16 bit Little Endian, Rate 48000
Hz, Stereo
Hardware PCM card 0 'AudioScience ASI6416' device 0 subdevice 0
Its setup is:
stream : CAPTURE
access : RW_INTERLEAVED
format : S16_LE
subformat : STD
channels : 2
rate : 48000
exact rate : 48000 (48000/1)
msbits : 16
buffer_size : 16384
period_size : 4096
period_time : 85333
tick_time : 10000
tstamp_mode : NONE
period_step : 1
sleep_min : 0
avail_min : 4096
xfer_align : 4096
start_threshold : 1
stop_threshold : 16384
silence_threshold: 0
silence_size : 0
boundary : 1073741824
Max peak (8192 samples): 0x00004e86 ############# 61%
Max peak (8192 samples): 0x00005547 ############## 66%
Max peak (8192 samples): 0x00004ab8 ############ 58%
Max peak (8192 samples): 0x00004e27 ############# 61%
Max peak (8192 samples): 0x000057b9 ############## 68%
I need to have slave devices to use with darkice, so I changed the /
etc/asound.conf file to :
pcm.channel0plug {
type plug
slave { pcm "channel1" }
}
pcm.channel1 {
type dsnoop
ipc_key 147852
ipc_key_add_uid yes
slave {
pcm "hw:0,0,0"
period_time 0
period_size 1024
buffer_size 5461
format S16_LE
rate 48000
}
}
But when I try to record on channel "channel0plug" :
# arecord -fdat -Dchannel0plug -vvv /tmp/test1
ALSA lib pcm_direct.c:874:(snd_pcm_direct_initialize_slave) slave
plugin does not support mmap interleaved or mmap noninterleaved access
ALSA lib pcm_dsnoop.c:569:(snd_pcm_dsnoop_open) unable to initialize
slave
arecord: main:550: audio open error: Invalid argument
Is this a limitation of the snd-asihpi driver ?
is it from alsa ?
is it from kernel ?
is it a missconfiguration in asound.conf ?
What can I do to bypass this issue ?
alsa version is 1.0.13
asi-hpi driver is 3.05.02
kernel is 2.6.17.13-ubuntu1-custom
Thanks
sebastien THOMAS - [EMAIL PROTECTED]
tel : 01 40 70 40 91
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