Date: Mon, 19 Apr 1999 17:57:16 +0900 From: Takanori Watanabe <takawata@shidahara1.planet.sci.kobe-u.ac.jp> To: Doug Rabson <dfr@nlsystems.com>, freebsd-current@freebsd.org Subject: Re: newbus and modem(s) Message-ID: <199904190857.RAA01297@shidahara1.planet.sci.kobe-u.ac.jp> In-Reply-To: Your message of "Mon, 19 Apr 1999 09:33:27 %2B0100" References: <Pine.BSF.4.05.9904190929070.85882-100000@herring.nlsystems.com>
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In message <Pine.BSF.4.05.9904190929070.85882-100000@herring.nlsystems.com>, Do ug Rabson wrote: >On Mon, 19 Apr 1999 takawata@shidahara1.planet.sci.kobe-u.ac.jp wrote: >> Simple Question. >> If there were 'Closed'-Host-Controller-Interface with object-only driver, >> Can the vendor make the Host controller recognized without changing >> usb.c code? >> >> #That's what frustrated me while writing driver for smbus controller. > >It really depends on the nature of the bus. For plug-and-play style busses >such as USB and PCI, the controller can decide what devices exist without >the help of drivers and can then uniquely match them with the right >driver. This trivially allows drivers to be added after the system is >running. I don't mention on upstream driver such as 'ukbd' (I think such device can be add truly dynamic),but I mention on 'host-controller' like [ou]hci. What I ask is what shall I do if there is a downstream driver without declared DRIVER_MODULE on upstream bus.Are there any way without changing upstream bus code? Takanori Watanabe <a href="http://www.planet.sci.kobe-u.ac.jp/~takawata/key.html">; Public Key</a> Key fingerprint = 2C 51 E2 78 2C E1 C5 2D 0F F1 20 A3 11 3A 62 2A To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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