Date: Sat, 07 Oct 2006 10:45:38 +0200 From: Matthias Andree <matthias.andree@gmx.de> To: freebsd-stable@freebsd.org Subject: Re: Recommendations for a serial port card you can actually BUY? Message-ID: <m38xjs4iq5.fsf@merlin.emma.line.org> In-Reply-To: <20061006175313.GA58888@FS.denninger.net> (Karl Denninger's message of "Fri\, 6 Oct 2006 12\:53\:13 -0500") References: <20061005151925.GA1156@FS.denninger.net> <20061005190822.GA15547@icarus.home.lan> <20061005202144.GA11105@FS.denninger.net> <54db43990610051404x1816135ft9740ec29eb5da23@mail.gmail.com> <20061006000909.GB2473@FS.denninger.net> <20061006135019.L76485@server.arg.sj.co.uk> <20061006175313.GA58888@FS.denninger.net>
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Karl Denninger <karl@denninger.net> writes: > I think there may be another option. > > Here's the boot message, with just USB related things: > > usb0: <Intel 82801EB (ICH5) USB controller USB-A> on uhci0 > usb0: USB revision 1.0 > usb1: <Intel 82801EB (ICH5) USB controller USB-B> on uhci1 > usb1: USB revision 1.0 > usb2: <Intel 82801EB (ICH5) USB controller USB-C> on uhci2 > usb2: USB revision 1.0 > usb3: <Intel 82801EB (ICH5) USB controller USB-D> on uhci3 > usb3: USB revision 1.0 > usb4: EHCI version 1.0 > usb4: companion controllers, 2 ports each: usb0 usb1 usb2 usb3 > usb4: <Intel 82801EB/R (ICH5) USB 2.0 controller> on ehci0 > usb4: USB revision 2.0 > > Now, isn't this in fact invarient? That is, isn't the probe on the bus > going to be the same across boots? This is effectively inheriting PCI order, so unless you're changing PCI configuration, these are in fact stable. > We can then get which device is on which port with.... > > Fs:/disk/karl> usbdevs -v ...until the moment one is un- and re-plugged, right? At least my two USB printers (easily told apart from the vendor ID) like to rearrange their ordering frequently on Linux... -- Matthias Andree
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