Date: Sat, 14 Jun 2014 12:41:19 -0700 From: Rui Paulo <rpaulo@FreeBSD.org> To: sbruno@freebsd.org Cc: freebsd-current <freebsd-current@FreeBSD.org> Subject: Re: SMBus controller Message-ID: <0FA33954-4C7C-4650-9CEB-984CF0A13433@FreeBSD.org> In-Reply-To: <1402772923.1120.13.camel@bruno> References: <1402772923.1120.13.camel@bruno>
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On Jun 14, 2014, at 12:08, Sean Bruno <sbruno@ignoranthack.me> wrote: > I note that my TLenovo 61 has one of these: >=20 > ichsmb0@pci0:0:31:3: class=3D0x0c0500 card=3D0x20a917aa = chip=3D0x283e8086 > rev=3D0x03 hdr=3D0x00 > vendor =3D 'Intel Corporation' > device =3D '82801H (ICH8 Family) SMBus Controller' > class =3D serial bus > subclass =3D SMBus >=20 >=20 > I'm pretty ignorant here, and I had to manually load ichsmb(4) to get = it > detected. How can I see what's on here and what its purpose for > existence might be. It's a System Management Bus. What you can do with it depends on what's = connected to the bus and depends on what the manufacturer implemented. = It's probably connected (indirectly) to the battery, to the voltage = sensors, to the fans, etc. smbmsg(8) is used to communicate with the other devices on the bus, but = I'm not sure if scanning devices will work. -- Rui Paulo
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