driver(9) softc

[Frank Zerangue <frank.zerangue%gmail.com@localhost>]

Driver(9) states: "The autoconfiguration framework mandates that the first 
member of the softc structure must be the driver-independent struct device." 
I've noticed that the "struct mii_softc" defined in mii/miivar.h uses device_t 
as the first member where device_t is "typedef struct device *device_t" in 
sys/driver.h.

How does this work? Did I miss something?

Regards,
Frank Zerangue