[Alsa-user] USB-428 - can't capture ch. 3&4

[Ed W. <edo...@ya...>]

Hi,

I have a Tascam USB-428 "control surface". I am able to capture audio on 
channels 1&2, playback audio, and midi i/o and control work. However, I 
cannot capture audio on ch. 3&4.

I've dug thru all the alsa docs and googled, but no luck.

Any help or advice much appreciated.

Ed

-----------------------------------------------
kernel 2.6.11
alsa 1.0.8
(all alsa drivers, utilities, etc v. 1.0.8)

all links in /dev and /dev/snd seem correct.
/proc/asound show the card and devices correctly.

"arecord -l" reports:
**** List of CAPTURE Hardware Devices ****
card 0: AudioPCI [Ensoniq AudioPCI], device 0: ES1371/1 [ES1371 DAC2/ADC]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
card 1: USX2Y [TASCAM US-X2Y], device 0: US-X2Y Audio [US-X2Y Audio #0]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
card 1: USX2Y [TASCAM US-X2Y], device 1: US-X2Y Audio [US-X2Y Audio #1]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
card 2: U0x46d0x8b2 [USB Device 0x46d:0x8b2], device 0: USB Audio [USB 
Audio]
   Subdevices: 1/1
   Subdevice #0: subdevice #0

"arecord -f cd -t wav -D hw:1,0 test.wav" works fine, but
"arecord -f cd -t wav -D hw:1,1 test.wav" returns:
arecord: set_params:910: Unable to install hw params:
ACCESS:  RW_INTERLEAVED
FORMAT:  S16_LE
SUBFORMAT:  STD
SAMPLE_BITS: 16
FRAME_BITS: 32
CHANNELS: 2
RATE: 44100
PERIOD_TIME: (92879 92880)
PERIOD_SIZE: 4096
PERIOD_BYTES: 16384
PERIODS: 4
BUFFER_TIME: (371519 371520)
BUFFER_SIZE: 16384
BUFFER_BYTES: 65536
TICK_TIME: 1000