Call for Test and Review: bwn(4) - another Broadcom Wireless driver

[Buganini]

Hi, with yesterday's CURRENT my bwn works partially.

this is my hardware
siba_bwn0 at pci0:4:0:0:	class=0x028000 card=0x04b514e4 chip=0x431514e4
rev=0x01 hdr=0x00
    vendor     = 'Broadcom Corporation'
    device     = 'Broadcom Wireless b/g (BCM4315/BCM22062000)'
    class      = network

it works with WPA ap without destroy/re-create wlan0
, but it's unstable, at the first time it works, it goes forth and
back between "associated" and "no carrier",
the other times it stay associated but network is down.
and this usually followed by system freeze if I `/etc/rc.d/netif restart` later.

and it never get associated with a open ap.


--Buganini