Date: Fri, 20 Feb 2004 19:19:42 +0100 From: Melvyn Sopacua <freebsd-current@webteckies.org> To: "M. Warner Losh" <imp@bsdimp.com> Cc: current@FreeBSD.org Subject: Re: Review/Test: Pseudo-device unit number management patch Message-ID: <200402201919.42458.freebsd-current@webteckies.org> In-Reply-To: <20040218.063204.74403147.imp@bsdimp.com> References: <200402170846.17399.freebsd-current@webteckies.org> <39796.1077013415@critter.freebsd.dk> <20040218.063204.74403147.imp@bsdimp.com>
next in thread | previous in thread | raw e-mail | index | archive | help
[-- Attachment #1 --] On Wednesday 18 February 2004 14:32, M. Warner Losh wrote: > In message: <39796.1077013415@critter.freebsd.dk> > > "Poul-Henning Kamp" <phk@phk.freebsd.dk> writes: > : Current our handing is that if it disappears, it's gone, if it comes > : back it's probably a new one anyway. > > Yes. If the hardware goes away and comes back, it can be very > difficult to know if you have the same hardware or different > hardware. For something as critical as a keyboard, would it be possible: - to keep the current layer in tact, but fool the layer that the device is always there? - store the last used keyboard somewhere and if no keyboard is found on boot, assume the last one used and start emulating it's existence All this of course, controllable by a kernel / bootloader / sysctl option, so that environments where keyboard switching is normal do not suffer. -- Melvyn ======================================================= FreeBSD sarevok.idg.nl 5.2-CURRENT FreeBSD 5.2-CURRENT #2: Mon Feb 16 19:59:52 CET 2004 root@sarevok.webteckies.org:/usr/obj/usr/src/sys/SAREVOK_NOAPM_NODEBUG i386 ======================================================= [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (FreeBSD) iD8DBQBANk++Ov9JNmfFN5URAkuuAJ9n7cnnvON6JytaP61Bx6lYwbFDmwCgsHEk jJjCXjNLoBP5MQcG13KcBAc= =T8be -----END PGP SIGNATURE-----
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200402201919.42458.freebsd-current>