Date: Mon, 19 Nov 2012 12:21:18 -0800 From: Adrian Chadd <adrian@freebsd.org> To: lev@freebsd.org Cc: freebsd-wireless@freebsd.org Subject: Re: Today's wireless update - TL;DR - please test -HEAD Message-ID: <CAJ-VmonD9urDS7x4z=zm5RNvBHHpgTghgAFYVFeOTQDm%2BzbsTQ@mail.gmail.com> In-Reply-To: <1336007393.20121120001741@serebryakov.spb.ru> References: <CAJ-VmomapiffpfDe94i0BbH6x1vdE51G3dkMpbzA8k=3Uj1Qcg@mail.gmail.com> <50A49138.3080700@gmail.com> <CAJ-Vmo=hNkm4uBEy2s_8A3y6%2BT=y7JV4vnuxsK%2B%2Bw023gkxxfg@mail.gmail.com> <50A52547.6030402@gmail.com> <CAJ-VmokRSkSPXTy-Vs6GkR7WpwmGsUKxgg5wixCXy53n9NECgw@mail.gmail.com> <50A86AB6.3050502@gmail.com> <CAJ-VmomCQYyZDL2QrbJveqRW-_Wiw=iwrKvsN6d_Bcc9UoT%2BCw@mail.gmail.com> <50A86D6F.807@gmail.com> <CAJ-VmokUNTLZb1JytUojhr3UszzLBqWoEGFZ5fbukbYV984jNQ@mail.gmail.com> <769502.20121119235515@serebryakov.spb.ru> <CAJ-VmonjMXq%2BObEQepCk43SW0RYweKzi06WewvTCvnqtBqKf0g@mail.gmail.com> <1757912873.20121120000939@serebryakov.spb.ru> <CAJ-Vmonn8=B8Kj=6UmLdKHGgp106N5HY3XS10U_W20H9Dusx%2Bw@mail.gmail.com> <1336007393.20121120001741@serebryakov.spb.ru>
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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
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