options snd-intel8x0 index=0
options snd-usb-audio index=1,3,4 vid=0x0582
Something that should improve a lot :
add the option nrpacks=1 to the module snd-usb-audio and check this :
$ zcat /proc/config.gz | grep -e CONFIG_EXPERIMENTAL -e USB_BANDWIDTH
if the output is this :
CONFIG_EXPERIMENTAL=y
# CONFIG_USB_BANDWIDTH is not set
you are okay :) You can put a period of 3 to jackd and tweak the frames as
you need.
if not, good kernel compilation !
Regards
Philippe