Date: Tue, 10 May 2005 11:52:51 -0700 From: "Kevin Oberman" <oberman@es.net> To: Martin Cracauer <cracauer@cons.org> Cc: Takanori Watanabe <takawata@init-main.com> Subject: Re: Porting code from the Linux ibm-acpi sourceforge package Message-ID: <20050510185251.9E2A15D09@ptavv.es.net> In-Reply-To: Your message of "Tue, 10 May 2005 14:14:05 EDT." <20050510141405.A61946@cons.org>
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> Date: Tue, 10 May 2005 14:14:05 -0400 > From: Martin Cracauer <cracauer@cons.org> > > > FreeBSD ATA has supported bus detach since ATAng (whenever that was). I > > have had no problem detaching ATA bus 1 and removing the drive (CD or > > HD) in the bay and replacing it with another or with a battery. Of > > course, it MUST be dismounted before the detach or a panic is to be > > expected. > > > > Also, if you use a second battery, you must have it in the system at > > boot time or it won't be seen, used, or even charged. If you boot with > > the battery, you can: > > atacontrol detach 1 > > remove the battery > > insert a disk drive > > atacontrol attach 1 > > use the disk and dismount it. > > atacontrol detach 1 > > remove the disk > > insert the battery > > Battery will be seen and used > > Thank you! > > This works from a detchament/attachment standpoint. > > However, after booting with the secondary battery, the battery is seen > and it says "charging", but the charge never goes above 0% (output of > apm(1), not sure how to see than in ACPI). > > Any clues? Is the primary battery fully charged? The secondary battery won't start charging unless the primary is at 100%. If you are running ACPI, the apm is just a shim on ACPI and the data seen from the apm command is really from ACPI. or a direct ACPI view, use "acpiconf -i 1". It will probably tell you a LOT more than you wanted to know and several important things APM would not tell you. I can only say that my T30 running current does charge the second battery and does report it properly. I THINK that 5-stable and current have the same stuff in this area. I believe that the only real areas of difference are in CPU performance and support of things like PowerNOW!, Speedstep and the like and the presence of powerd. -- R. Kevin Oberman, Network Engineer Energy Sciences Network (ESnet) Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab) E-mail: oberman@es.net Phone: +1 510 486-8634
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