Date: Thu, 17 Jan 2008 18:44:55 +0100 From: Ivan Voras <ivoras@freebsd.org> To: freebsd-current@freebsd.org Subject: Re: RFC: Adding a hw.features[2] sysctl Message-ID: <fmo46o$8q4$1@ger.gmane.org> In-Reply-To: <a2b6592c0801140903l78370630w50bf886d96118bb9@mail.gmail.com> References: <1200197787.67286.13.camel@shumai.marcuscom.com> <20080113182457.GN929@server.vk2pj.dyndns.org> <a2b6592c0801131721w25afae5bg3dcf6a90c1a3d2b7@mail.gmail.com> <200801141254.20400.doconnor@gsoft.com.au> <a2b6592c0801131838jcde3634le6087d2f784adcbc@mail.gmail.com> <478AE741.1000105@comcast.net> <a2b6592c0801140139v42bb6ab2s667ebceb9ba3ab16@mail.gmail.com> <slrnfomt3j.i6j.csaba-ml@beastie.creo.hu> <a2b6592c0801140747r2a7ec1e5q7cd858065399ae65@mail.gmail.com> <slrnfon4at.i6j.csaba-ml@beastie.creo.hu> <a2b6592c0801140903l78370630w50bf886d96118bb9@mail.gmail.com>
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This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig01D30F736FAF44BD17665816 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable Igor Mozolevsky wrote: > Would you need > ...features=3D0x178bfbff > ...features2=3D0x1 > ...amd.features=3D0xe2500800 > ...amd.features20x3; or Please go this way because applications that care only about "features2" = will be unmoved if another manufacturer adds "features3" and=20 "features4". Programs made to depend on "features3" will simply get an=20 "not found" error at a system level when run on a machine that lacks=20 "features3", which is desirable and good design. > I genuinely don't know (and don't have the time to work out) the > actual overhead of a sysctl vs ioctl, so if someone knows please let > me know :-) Please don't start polluting /dev with info-only nodes. Sysctls are=20 designed exactly for that purpose. --------------enig01D30F736FAF44BD17665816 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.5 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFHj5QXldnAQVacBcgRApCQAJ9rnbw+O910rWrv6xhtlHCnXI16qgCg+r0T hOOoWqJxESQMFpLZ3eckibU= =6tGc -----END PGP SIGNATURE----- --------------enig01D30F736FAF44BD17665816--
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