Date: Sat, 3 Oct 2009 09:05:35 -0600 From: Scott Long <scottl@samsco.org> To: Hans Petter Selasky <hselasky@c2i.net> Cc: freebsd-current@freebsd.org Subject: Re: [PATCH] Fix for USB media not found at boot Message-ID: <F22AB1E4-C293-4825-89BB-9863606F2C60@samsco.org> In-Reply-To: <200910031230.51044.hselasky@c2i.net> References: <20091002150931.K35591@pooker.samsco.org> <200910030953.17359.hselasky@c2i.net> <3307DF7C-2FEF-468B-85F4-095BB7E3EE8F@samsco.org> <200910031230.51044.hselasky@c2i.net>
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On Oct 3, 2009, at 4:30 AM, Hans Petter Selasky wrote: > On Saturday 03 October 2009 10:19:57 Scott Long wrote: >> config_intrhook system will sleep after all > > Then why do you need the intr hook callback? > The config_intrhook lets you know that interrupts are enabled, the scheduler is running, and mountroot hasn't run yet. It provides a very convenient and standard way to do exactly what we want with USB enumeration. Scott
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