From owner-freebsd-usb@FreeBSD.ORG  Thu Nov 30 22:14:26 2006
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Date: Fri, 01 Dec 2006 11:14:25 +1300
From: Sam Banks <w0lfie@clear.net.nz>
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Subject: Looking for a starting point on how the USB subsystem works
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Hey all,

I am having a problem with a USB keyboard I use
(http://lists.freebsd.org/pipermail/freebsd-hackers/2006-November/018764.html).
I have a feeling that my problems relate to something
external to the ukbd driver.

I am wanting to dig around to find out how the ukbd driver
is actually sent the information from the physical keyboard.
I assume it is something like a generic USB driver that
forwards the data on? I have searched around the mailing
lists and the internet and have found very little (none to
be exact) information about how the FreeBSD USB subsystem
works.

Can anyone recommend any resources where I could find any of
this info?

Cheers,

Sam.