Date: Mon, 26 Nov 2007 14:33:19 +0100 From: Alexander Leidinger <Alexander@Leidinger.net> To: Henrik Brix Andersen <brix@FreeBSD.org> Cc: cnst@FreeBSD.org, arch@FreeBSD.org, Nikolay Pavlov <qpadla@gmail.com>, rwatson@FreeBSD.org, freebsd-arch@FreeBSD.org, imp@FreeBSD.org Subject: Re: sensors framework continued (architecture) Message-ID: <20071126143319.x9e9cezeo0ocso8k@webmail.leidinger.net> In-Reply-To: <20071126124438.GA77230@tirith.brixandersen.dk> References: <20071109124421.3c1901b1@deskjail> <200711261434.45765.qpadla@gmail.com> <20071126124438.GA77230@tirith.brixandersen.dk>
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Quoting Henrik Brix Andersen <brix@FreeBSD.org> (from Mon, 26 Nov 2007 =20 13:44:39 +0100): > On Mon, Nov 26, 2007 at 02:34:40PM +0200, Nikolay Pavlov wrote: >> Just want to mention that Linux lm-sensors 3.0.0 was released today. >> A few notes that could be interesting for us: >> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D Quote =3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D >> * It is now a user-space-only package, it no longer contains kernel >> drivers. >> * The i2c tools have been moved to a separate package (surprisingly >> named i2c-tools). >> * libsensors' internal version was bumped to 4.0.0, as it has a >> completely new API we had to increase the .so version. This new >> library contains no chip-specific knowledge, it assumes that hardware >> monitoring drivers follow the standard sysfs interface. A very nice >> benefit of this is that the size of the library has been divided by >> 4 (down from 222 kB to 55 kB on i386). >> * Some kernel drivers still don't implement the standard interface >> for alarms, so alarm flags won't show. >> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D Quote =3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D >> >> So as you can see it's fully userspace non chip-specific library, based o= n >> sysfs interface. > > And it has been for quite a while, unless you compiled it on an old > Linux kernel (e.g. 2.4.x), which didn't have the required drivers. You are talking mostly about the userland part (the lib) which we =20 haven't discussed in this thread. What we discuss in this thread is the kernel<->userland interface. You =20 wrote that Linux uses sysfs as the kernel<->userland interface. Poul =20 proposes the /dev/sensors special file (not directory) as the =20 kernel<->userland interface, and I propose sysctl as the =20 kernel<->userland interface. Bye, Alexander. --=20 Joe's sister puts spaghetti in her shoes! http://www.Leidinger.net Alexander @ Leidinger.net: PGP ID =3D B0063FE7 http://www.FreeBSD.org netchild @ FreeBSD.org : PGP ID =3D 72077137
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