From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Cintia B. Margi" Subject: Re: question about ACPI & Smart Batteries Date: Thu, 12 Aug 2004 15:29:36 -0700 Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Message-ID: <20040812222936.GD30862@miramar.cse.ucsc.edu> References: Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="6zdv2QT/q3FMhpsV" Return-path: Content-Disposition: inline In-Reply-To: Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: "Grover, Andrew" Cc: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: linux-acpi@vger.kernel.org --6zdv2QT/q3FMhpsV Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable * Grover, Andrew (andrew.grover-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org) said: > Unless you have a Fujitsu Uva, you do not have a smart battery, you have > a control method battery. I don't have a smart battery then. =20 > For a CM battery, the OS can poll the battery state by calling _BST, or > set a trip point (via _BTP) and the OS will get an interrupt when the > battery crosses that trip. I do not want to set a trip point, but I would like to monitor the battery = discharge process... I want to characterize the battery discharge behavior under diff= erent tasks, so I intend to monitor the battery voltage and the discharge rate (which I = can obtain from /proc/acpi/battery/BAT0/state). What I would like to know is how often= the state file is updated and how accurate these values are. Any idea where I can get= this info? Thanks, Cintia=20 -- Cintia Margi Graduate Student SoE - UCSC http://www.soe.ucsc.edu/~cintia GPG Public Key: http://www.soe.ucsc.edu/~cintia/cintia.gpg B4DE 9355 3840 FF72 50F2 ACAC E2EC AA9A 41E2 CD55 --6zdv2QT/q3FMhpsV Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (FreeBSD) iD4DBQFBG+9Q4uyqmkHizVURAsxdAJ0WCvv3zX6MNI9PaFMVD3T3jliwCwCVEc1b CSpYdxoPRJ7DpaFyWkoTvA== =FTi+ -----END PGP SIGNATURE----- --6zdv2QT/q3FMhpsV-- ------------------------------------------------------- SF.Net email is sponsored by Shop4tech.com-Lowest price on Blank Media 100pk Sonic DVD-R 4x for only $29 -100pk Sonic DVD+R for only $33 Save 50% off Retail on Ink & Toner - Free Shipping and Free Gift. http://www.shop4tech.com/z/Inkjet_Cartridges/9_108_r285