Comment 3 for bug 66657

This is still not possible to do with the latest alsa-lib release. Here is the output when I run the following jack command:

jackd -v -R -d alsa -C capture16 -P playback16 -r 44100 -p 64

getting driver descriptor from /usr/lib/libjack0.100.0/jack_alsa.so
getting driver descriptor from /usr/lib/libjack0.100.0/jack_dummy.so
getting driver descriptor from /usr/lib/libjack0.100.0/jack_freebob.so
getting driver descriptor from /usr/lib/libjack0.100.0/jack_oss.so
jackd 0.102.20
Copyright 2001-2005 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

JACK compiled with System V SHM support.
server `default' registered
loading driver ..
apparent rate = 44100
creating alsa driver ... playback16|capture16|64|2|44100|0|0|nomon|swmeter|-|32bit
configuring for 44100Hz, period = 64 frames, buffer = 2 periods
ALSA: final selected sample format for capture: 32bit little-endian
ALSA: use 2 periods for capture
ALSA: final selected sample format for playback: 32bit little-endian
ALSA: use 2 periods for playback
7898 waiting for signals
registered builtin port type 32 bit float mono audio
registered builtin port type 8 bit raw midi
clock source = system clock via gettimeofday
required capabilities not available
capabilities: =
new client: alsa_pcm, id = 1 type 1 @ 0x805b5c0 fd = -1
new buffer size 64
registered port alsa_pcm:capture_1, offset = 256
registered port alsa_pcm:capture_2, offset = 512
registered port alsa_pcm:capture_3, offset = 768
registered port alsa_pcm:capture_4, offset = 1024
registered port alsa_pcm:capture_5, offset = 1280
registered port alsa_pcm:capture_6, offset = 1536
registered port alsa_pcm:capture_7, offset = 1792
registered port alsa_pcm:capture_8, offset = 2048
registered port alsa_pcm:capture_9, offset = 2304
registered port alsa_pcm:capture_10, offset = 2560
registered port alsa_pcm:capture_11, offset = 2816
registered port alsa_pcm:capture_12, offset = 3072
registered port alsa_pcm:capture_13, offset = 3328
registered port alsa_pcm:capture_14, offset = 3584
registered port alsa_pcm:capture_15, offset = 3840
registered port alsa_pcm:capture_16, offset = 4096
registered port alsa_pcm:playback_1, offset = 0
registered port alsa_pcm:playback_2, offset = 0
registered port alsa_pcm:playback_3, offset = 0
registered port alsa_pcm:playback_4, offset = 0
registered port alsa_pcm:playback_5, offset = 0
registered port alsa_pcm:playback_6, offset = 0
registered port alsa_pcm:playback_7, offset = 0
registered port alsa_pcm:playback_8, offset = 0
registered port alsa_pcm:playback_9, offset = 0
registered port alsa_pcm:playback_10, offset = 0
registered port alsa_pcm:playback_11, offset = 0
registered port alsa_pcm:playback_12, offset = 0
registered port alsa_pcm:playback_13, offset = 0
registered port alsa_pcm:playback_14, offset = 0
registered port alsa_pcm:playback_15, offset = 0
registered port alsa_pcm:playback_16, offset = 0
++ jack_rechain_graph():
client alsa_pcm: internal client, execution_order=0.
-- jack_rechain_graph()
ALSA: poll time out, polled for 2174768 usecs
DRIVER NT: could not run driver cycle
jack main caught signal 12
starting server engine shutdown
freeing shared port segments
stopping server thread
stopping watchdog thread
last xrun delay: 0.000 usecs
max delay reported by backend: 0.000 usecs
freeing engine shared memory
max usecs: 0.000, engine deleted
no message buffer overruns
cleaning up shared memory
cleaning up files
unregistering server `default'

Attached is the copy of the asoundrc file I am using.