http://www.freebsd.org/cgi/man.cgi?query=ahd&sektion=4&manpath=FreeBSD+8.1-RELEASE To compile this driver into the kernel, place the following lines in your
kernel configuration file:
device pci
device scbus
device ahd
To compile in debugging code:
options AHD_DEBUG
options AHD_DEBUG_OPTS=<bitmask of options>
options AHD_REG_PRETTY_PRINT
To configure one or more controllers to assume the target role:
options AHD_TMODE_ENABLE=<bitmask of units>
Alternatively, to load the driver as a module at boot time, place the
following line in loader.conf(5):
ahd_load="YES"
