Date: Tue, 01 Oct 2002 23:14:14 -0600 (MDT) From: "M. Warner Losh" <imp@bsdimp.com> To: bms@spc.org Cc: brooks@one-eyed-alien.net, stest030@garbonzo.hos.ufl.edu, freebsd-mobile@FreeBSD.ORG Subject: Re: Microsoft MN-510 USB Wi-Fi ? Message-ID: <20021001.231414.10295767.imp@bsdimp.com> In-Reply-To: <20021001103807.GU26352@spc.org> References: <200209302259.00470.stest030@garbonzo.hos.ufl.edu> <20020930214208.A30941@Odin.AC.HMC.Edu> <20021001103807.GU26352@spc.org>
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In message: <20021001103807.GU26352@spc.org> Bruce M Simpson <bms@spc.org> writes: : On Mon, Sep 30, 2002 at 09:42:08PM -0700, Brooks Davis wrote: : > On Mon, Sep 30, 2002 at 10:59:00PM -0400, Bob Johnson wrote: : > It definatly won't work with 4.6.2. There's no support for USB wireless : > adaptors at this point. I think there are linux drivers for at least : > one type, but I don't know if anyone is working on a port of them. : : If anyone's planning on reverse engineering these things, typically the : drivers themselves are NDIS5 ones, not USB ones. The NDIS5 driver then : acts as a client calling into USBD. : : A number of people have taken apart these USB wireless adapters and found : them to contain PCMCIA devices with a bridge chip of some kind. : : If that's the case, and the bridge chip forwards commands in much the same : way as the USB-ATA bridges in existence, then writing an additional layer : for if_wi to talk via the bridge might be straightforward once the packet : format is known. Well, the usb based prism2 cards are definitely documented, and definitely look a whole lot like the pcmcia version (minor differences). However, doing a usb attachment to the wi driver might be difficult. Bill Paul said we might be better off copying it to uwi and hacking from there. However, I'm not sure that I agree with him. That might be faster, but it would be more of a pain to maintain. Also, I'd suspect that the PCMCIA bridge kludge version would be a little different than the native usb version. It also wouldn't help if you had a non-wifi card installed. I'd also contemplated getting one of the adapters and writing a generic usb<->pcmcia bridge driver, but soon realized I had too many projects in the hopper and this one would likely drive me insane in short order :-). Warner To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-mobile" in the body of the message
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