Date: Wed, 02 Oct 2002 05:40:57 +0900 (JST) From: Mitsuru IWASAKI <iwasaki@jp.FreeBSD.org> To: rodrigc@attbi.com Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: ACPI programming under FreeBSD? Message-ID: <20021002.054057.109173550.iwasaki@jp.FreeBSD.org> In-Reply-To: <20021001162300.A31745@attbi.com> References: <20021001162300.A31745@attbi.com>
next in thread | previous in thread | raw e-mail | index | archive | help
Hi, > I am interested in retrieving power statistics type of information from a > system running FreeBSD. I am interested in information such as: > power consumed, temperature, percentage of battery available, etc. > > Is it possible to do this with ACPI, and if so, are there any > examples of how to gather this information at the user-level? Yes, you can get them via sysctl, like % sysctl hw.acpi hw.acpi.power_button_state: S5 hw.acpi.sleep_button_state: S4 hw.acpi.lid_switch_state: NONE hw.acpi.standby_state: S4 hw.acpi.suspend_state: S4 hw.acpi.sleep_delay: 0 hw.acpi.s4bios: 1 hw.acpi.verbose: 0 hw.acpi.cpu.max_speed: 8 hw.acpi.cpu.current_speed: 8 hw.acpi.cpu.performance_speed: 8 hw.acpi.cpu.economy_speed: 8 hw.acpi.thermal.min_runtime: 300 hw.acpi.thermal.polling_rate: 30 hw.acpi.thermal.tz0.temperature: 3262 hw.acpi.thermal.tz0.active: -1 hw.acpi.thermal.tz0.thermal_flags: 0 hw.acpi.thermal.tz0._PSV: -1 hw.acpi.thermal.tz0._HOT: -1 hw.acpi.thermal.tz0._CRT: 3652 hw.acpi.thermal.tz0._ACx: 3372 -1 -1 -1 -1 -1 -1 -1 -1 -1 hw.acpi.acline: 0 hw.acpi.battery.life: 99 hw.acpi.battery.time: 357 hw.acpi.battery.state: 1 hw.acpi.battery.units: 1 hw.acpi.battery.info_expire: 30 I think my fivamon (Monitor for ACPI and Crusoe Longrun info.) will be an example of application development. It's diff against wmmon Dock. http://people.freebsd.org/~iwasaki/acpi/fivamon-20011124.diff http://people.freebsd.org/~iwasaki/acpi/fivamon-1.gif http://people.freebsd.org/~iwasaki/acpi/fivamon-2.gif http://people.freebsd.org/~iwasaki/acpi/fivamon-3.gif > How stable is ACPI support in -STABLE and -CURRENT for this > kind of work? Currently ACPI support is available in only -CURRENT. But John Baldwin (jhb@FreeBSD.org) has patches for -STABLE. The stability is depending on what machine you have, I think. If you have the same machine with ACPI developer, the machine is supported very well :-) Thanks To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20021002.054057.109173550.iwasaki>