[linux-audio-user] asoundrc syntax for two ice1712 cards

Hi I've got two M-Audio Delta 1010 cards/boxes that I want to use with Jack and Ardour. I can get jackd to start with either one of the 1010s but not both. Trying to find the correct syntax for .asoundrc is driving me nuts. I know it's theoretically possible to configure ALSA to merge the two cards into one so Jack can deal with it, but I can't find any explanations of how to do this. I've been unable to find any examples of .asoundrc for multiple ice1712 cards. Can anyone point me to the necessary info? A working example .asoundrc would be good, but even better would be a detailed guide to .asoundrc syntax. The HOWTO on the ALSA site gives a few sketchy examples and no real explanation. Regards, John