That's right. The atheros devices have one MAC and one radio. There was a module which used one MAC and two radios (one 2ghz and one 5ghz) but only one was active at a time. since there was only one MAC, you couldn't even do dual-band concurrent operation with that.
There's nothing _stopping_ a manufacturer putting two NICs on one board. There's some dual-AR9220 boards out there which have two AR9220's on a single mini-PCI card. But they require a slightly modified board - the second NIC has its IDSEL pin on another (unused? gpio?) mini-PCI pin. So if you plug it into a normal device you only see one AR9220. Yes, FreeBSD-HEAD runs on the particular dev board and drives those NICs correctly. So far, I don't think anyone has made a public, "correct" dual band single NIC - which involves putting a PCI or PCIe bridge chip on a card, as well as two AR9xxx chips. Adrian _______________________________________________ freebsd-wireless@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-wireless To unsubscribe, send any mail to "freebsd-wireless-unsubscr...@freebsd.org"
