Date: Tue, 1 Dec 1998 14:30:04 +0100 (MET) From: Nick Hibma <nick.hibma@jrc.it> To: FreeBSD hackers mailing list <hackers@FreeBSD.ORG> Subject: major/minor numbers Message-ID: <Pine.GSO.3.95q.981201142532.371K-100000@elect8>
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For USB support I need at least 1 but possible 3 or more major numbers.
usb0
and possibly
ums0
ulpt0
ucuaa0 (maybe)
Brian Feldman came up with the idea to use major numbers together with
other drivers, for example have ums use the numbers that also psm uses
(their both PS/2 mice). Anyone tried this? Sounds a bit odd if you do
not want to divide minor number space amongst them statically.
Second question is: How many minor numbers can be stuck onto a major
number? 16, 256, 1024, 2^16, 2^32 ?
Cheers,
Nick Hibma
FreeBSD USB project
--
The above are strictly my own opinions and not my employer's.
e-mail: n_hibma@freebsd.org
home page: http://www.etla.net/~n_hibma/usb/usb.pl
mailing list: usb-bsd@egroups.com
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