Date: Sun, 29 Aug 2004 09:03:43 -0700 From: richard childers / kg6hac <fscked@pacbell.net> To: Gary Kline <kline@tao.thought.org> Cc: FreeBSD Mobile Mailing List <freebsd-mobile@FreeBSD.ORG> Subject: Re: xbatt or other indicators for the Thinkpad 600E? Message-ID: <4131FE5F.4030407@pacbell.net> In-Reply-To: <20040829003053.GA91309@thought.org> References: <20040829003053.GA91309@thought.org>
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> Gary Kline wrote: > > So far, it looks as tho my battery runs more than two hours on > my old TP. But I'd like to have a gauge of some kind. When I > try to install any of the battery apps I error out with > "/dev/apm" notfound. Ihave "^device apm" compiled into the > kernel. RH Linux finds the power-off device on one of the > 1998 Kayaks. Didn't IBM have this on their hardware about the > same time? > > I see several questions here. [1] /dev/apm missing. I would grep for 'apm' in /dev/MAKEDEV and see if it exists, if it does, use MAKEDEV to recreate it. > www# grep apm /dev/MAKEDEV > # apm Advanced Power Management BIOS > # apmctl APM BIOS control device > sh MAKEDEV apm apmctl card0 card1 card2 card3 # cdev, laptop > sh MAKEDEV apm apmctl card0 # cdev, laptop > apm) > mknod apm c 39 0 root:operator > chmod 664 apm > apmctl) > mknod apmctl c 39 8 root:operator > chmod 660 apmctl [2] "^device apm" in kernel. Off the top of my head I don't have this memorized, but note that GENERIC and LINT kernels should be rich with examples. > www# grep apm /usr/src/sys/i386/conf/[GL]* > /usr/src/sys/i386/conf/GENERIC:device apm0 at nexus? > disable flags 0x20 # Advanced Power Management > /usr/src/sys/i386/conf/LINT:# apm: Laptop Advanced Power Management > (experimental) > /usr/src/sys/i386/conf/LINT:# The flags takes the following meaning > for apm0: > /usr/src/sys/i386/conf/LINT:# If apm is omitted, some systems require > sysctl -w kern.timecounter.method=1 > /usr/src/sys/i386/conf/LINT:device apm0 > /usr/src/sys/i386/conf/LINT:# apm under `Miscellaneous hardware' > /usr/src/sys/i386/conf/LINT:# viapm VIA VT82C586B,596,686A > and VT8233 SMBus controllers > /usr/src/sys/i386/conf/LINT:device viapm You may also want to read the man pages on apm ... > www# man -k apm > apm(4) - APM BIOS interface > apm(8), zzz(8) - control the APM BIOS and display its > information > apmd(8) - Advanced Power Management monitor daemon > def_prog_mode(3), def_shell_mode(3), reset_prog_mode(3), > reset_shell_mode(3), re > setty(3), savetty(3), getsyx(3), setsyx(3), ripoffline(3), > curs_set(3), napms(3) > - low-level curses routines > viapm(4) - VIA chipsets Power Management controller driver From my own, separate training in the legal field, I know how important it is to search using synonyms, to make sure one gets all relevant citations. Other keywords to search for, besides "apm", might be "advanced", "power", "manage", "bios", etc. [3] power-off devices. You did not mention which version of FreeBSD; the examples I have cited are from a FreeBSD 4.n server. In general, this area is rapidly evolving as programmers get a better understanding of the [proprietary, closed-source, must-be-painfully-but-legally-reverse-engineered] BIOS calls; if this hurts, you need to address the vendors, not the programmers. [4] If I recall correctly there may also be an option that needs to be enabled in /etc/rc.conf if you want apmd to fire up. Regards, -- richard -- Richard Childers / Senior Engineer Daemonized Networking Services 945 Taraval Street, #105 San Francisco, CA 94116 USA [011.]1.415.759.5571 http://www.daemonized.com 'A well-schooled electorate, being necessary to the security of a free State, the right of the people to keep and read Books, shall not be infringed.' -- (Attributed to J. 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