Had a response over on alsa-devel mailing list, but the suggestion did not work. Newer kernels support the QUIRK_AUTO_DETECT parameter which once again worked for 8 channels of capture, but failed for playback. I am pretty much out of ideas at this point. Here is the output of an attempt to just use the R16 for stereo playback. There are some maxpacket errors on the MIDI interface (though it works fine) and errors in getting the sample rate from the playback and capture addresses for the R16, as well as errors in setting the sample rate for the playback address (0x03). If anyone has suggestions on what to do with this info (I also posted on alsa-devel), please let me know. dmesg ouput: [ 319.651037] usb 2-8: new high-speed USB device number 10 using ehci-pci [ 319.959768] usb 2-8: config 1 interface 3 altsetting 0 bulk endpoint 0x1 has invalid maxpacket 64 [ 319.959773] usb 2-8: config 1 interface 3 altsetting 0 bulk endpoint 0x82 has invalid maxpacket 64 [ 319.960512] usb 2-8: New USB device found, idVendor=1686, idProduct=00dd [ 319.960516] usb 2-8: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 319.960519] usb 2-8: Product: R16 [ 319.960522] usb 2-8: Manufacturer: ZOOM Corporation [ 319.960525] usb 2-8: SerialNumber: 0 [ 319.961397] snd-usb-audio: probe of 2-8:1.0 failed with error -5 [ 324.962217] 10:1:1: cannot get freq at ep 0x3 [ 334.963237] 10:2:1: cannot get freq at ep 0x84 [ 360.798326] 10:1:1: cannot get freq at ep 0x3 [ 365.803274] 10:1:1: cannot set freq 96000 to ep 0x3 [ 387.266266] 10:2:1: cannot get freq at ep 0x84 [ 392.272214] 10:2:1: cannot get freq at ep 0x84 [ 413.894325] 10:1:1: cannot get freq at ep 0x3 [ 418.899271] 10:1:1: cannot set freq 96000 to ep 0x3 JACK LOG: loading driver .. apparent rate = 96000 creating alsa driver ... -|hw:R16|1024|2|96000|8|0|nomon|swmeter|-|32bit configuring for 96000Hz, period = 1024 frames (10.7 ms), buffer = 2 periods ALSA: final selected sample format for capture: 32bit integer little-endian ALSA: use 2 periods for capture 09:45:13.982 Server configuration saved to "/root/.jackdrc". 09:45:13.983 Statistics reset. 09:45:13.993 Client activated. 09:45:13.996 Buffer size change (0). 09:45:16.971 Buffer size change (1024). 09:45:16.972 JACK connection graph change. 09:45:16.997 JACK connection change. 09:45:28.900 Client deactivated. 09:45:28.903 JACK is stopping... jack main caught signal 15 no message buffer overruns 09:45:33.936 JACK was stopped successfully. 09:45:38.539 JACK is starting... 09:45:38.539 /usr/bin/jackd -dalsa -dhw:R16 -r96000 -p1024 -n2 -P -o2 jackd 0.122.1 Copyright 2001-2009 Paul Davis, Stephane Letz, Jack O'Quinn, Torben Hohn 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 JACK compiled with System V SHM support. 09:45:38.570 JACK was started with PID=2919. loading driver .. apparent rate = 96000 creating alsa driver ... hw:R16|-|1024|2|96000|0|2|nomon|swmeter|-|32bit configuring for 96000Hz, period = 1024 frames (10.7 ms), buffer = 2 periods ALSA: final selected sample format for playback: 32bit integer little-endian ALSA: use 2 periods for playback 09:45:40.660 Server configuration saved to "/root/.jackdrc". 09:45:40.661 Statistics reset. 09:45:40.671 Client activated. 09:45:40.674 Buffer size change (0). 09:45:43.600 Buffer size change (1024). 09:45:43.601 JACK connection graph change. 09:45:43.675 JACK connection change. ALSA: prepare error for playback on "hw:R16" (Connection timed out) DRIVER NT: could not start driver cannot start driver no message buffer overruns 09:45:48.627 Shutdown notification. 09:45:48.628 Client deactivated. 09:45:48.631 JACK is being forced... cannot read server event (Success) cannot continue execution of the processing graph (Bad file descriptor) graph error - calling shutdown handler 09:45:48.831 JACK was stopped successfully. -- View this message in context: http://linux-audio.4202.n7.nabble.com/re-Zoom-R16-tp87487p88069.html Sent from the linux-audio-user mailing list archive at Nabble.com. _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
