Date: Tue, 6 Nov 2007 15:00:02 +0100 From: Bernd Walter <ticso@cicely12.cicely.de> To: Krassimir Slavchev <krassi@bulinfo.net> Cc: freebsd-arm@freebsd.org, ticso@cicely.de Subject: Re: Detecting USB devices at startup? Message-ID: <20071106140002.GM4593@cicely12.cicely.de> In-Reply-To: <47307221.6010208@bulinfo.net> References: <472F1A97.3090308@bulinfo.net> <20071105.080609.1723237322.imp@bsdimp.com> <47303B8E.2040403@bulinfo.net> <20071106125853.GJ4593@cicely12.cicely.de> <47306BDD.70206@bulinfo.net> <20071106134227.GK4593@cicely12.cicely.de> <47307221.6010208@bulinfo.net>
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On Tue, Nov 06, 2007 at 03:54:41PM +0200, Krassimir Slavchev wrote: > > Bernd Walter wrote: > ... > > I'm still a bit surprised, since there are so many noname hubs with > > fat wallwarts. > > I have found such 4 port hub and I will make test as soon as receive it. > ... > > > Interesting, so they run everything linear regulated from 5V. > > Sounds like a lot of power loss, but their board is different and > > maybe they have more 5V components. > > No, but there is an IDE interface. I've found at least the sound, CAN driver and LED are using 5V. Maybe sound is just using 5V, because it is there, which holds true for the LEDs. But since they don't have a switch they maybe have much less load on the 3,3V. -- B.Walter http://www.bwct.de http://www.fizon.de bernd@bwct.de info@bwct.de support@fizon.de
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