#7 jackd can't see alsa

[Anonymous]

Hi

I have jack and alsa installed but when I run:
jackd -d alsa

...I get an error:
jackd: unknown driver 'alsa'

I do have alsa installed: kinfocenter shows 'Type 10
ALSA emulation' as my driver.

Should I be doing something to point jack at alsa?

Thanks in advance