Date: Tue, 9 May 2000 12:13:59 +0100 (BST) From: Nick Hibma <n_hibma@calcaphon.com> To: "John H. Baldwin" <jobaldwi@cslab.vt.edu> Cc: Doug Rabson <dfr@nlsystems.com>, freebsd-new-bus@freebsd.org, jhb@freebsd.org Subject: Re: Alpha USB difficulties... Message-ID: <Pine.BSF.4.20.0005091210270.62501-100000@localhost> In-Reply-To: <Pine.BSF.4.21.0005081426540.31869-100000@snowcow.cslab.vt.edu>
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> The interrupts don't seem to be delivered properly. Thus, I can't get the > keyboard to work, usbd takes a while (several seconds) to start, usbdevs > also runs with delays, and no kernel messages are generated when I > add/delete items to the USB tree. Any ideas, suggetions, etc. would be > greatly appreciated. I lose access to this machine on Friday, so.... :) Interrupts are not delivered. If you check usbd you will see that the first thing it does is to enumerate the tree and that stalls at not getting interrupts after sending the requests to the hub. The timeout is 5 seconds I think and it does several requests, so 30 seconds to a minute sounds plausible. You need to dig around in the interrupt routing. Nick -- n_hibma@webweaving.org n_hibma@freebsd.org USB project http://www.etla.net/~n_hibma/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-new-bus" in the body of the message
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