I have this USB device called TC-Helicon Blender which provides 12 input
streams, 8 output streams (6/4 stereo plugs), in addition to some midi
interface and internal playback and record channel.
Bus 005 Device 016: ID 1220:8fe1 TC Electronic Blender
If I power the device on while connected to a windows machine with its
driver installed, then plug it into my linux machine, it appears to work
correctly:
arecord -D front:CARD=Blender -r48000 -fS32_LE -c 12 blender.wav -d 20
Recording WAVE 'blender.wav' : Signed 32 bit Little Endian, Rate 48000
Hz, Channels 12
46080044 blender.wav
However if I have it on my linux machine while powering it on, I only
get timeouts and no samples from arecord:
arecord -D front:CARD=Blender -r48000 -fS32_LE -c 12 blender.wav -d 20
Recording WAVE 'blender.wav' : Signed 32 bit Little Endian, Rate 48000
Hz, Channels 12
arecord: pcm_read:2221: read error: Input/output error
44 blender.wav
What can I do to try and get this device to init correctly under linux?
I have captured USB packets of the init phase using wireshark on both
windows and linux but comparing them is tedious if I don't know what to
look for. Are there quirks flags I can play around with? This is my
first time looking at a linux device driver issue like this.
Would it be ok to attach the usb captures on this mailing list?
thanks
Florian
--
Florian Hänel
Geschäftsführer
echtzeit.solutions GmbH
Handelsregistergericht München HRB 231056
Ust-ID DE310379807
