Re: xbatt or other indicators for the Thinkpad 600E?

On Sun, Aug 29, 2004 at 04:11:55PM -0700, Kevin Oberman wrote:
> > Date: Sun, 29 Aug 2004 13:03:19 -0700
> > From: Gary Kline <[email protected]>
> > 
> > On Sun, Aug 29, 2004 at 12:45:38PM -0700, Kevin Oberman wrote:
> > > > Date: Sat, 28 Aug 2004 17:30:53 -0700
> > 
> > 
> > 	I have apm_enable=YES; will set the daemon=yes and reboot.
> > 	Does this create /dev/apm?  I'm not clear on how the new
> > 	/dev work on V5.
> 
> In V5, /dev is no longer simply a directory on a normal FFS file system
> containing some rather odd entries that describe device access. This has
> been replaced by devfs, a special file system for devices which is
> mounted on the normal file system, usually at root (/).
> 
> Instead of creating static entries with mknod, devfs creates entries
> "on the fly" from call made by the device driver. Devices are not
> created until the driver actually probes and finds the device and are
> destroyed when the device is removed (for removable devices). This was
> needed to support USB, Firewire and similar devices which are dynamically
> added and removed from the system.
> 
	Did the old, static entries drain too many resources? 
	Or was it simply harder to implement USB and other devs
	statically?  (Eventually I'll read the code!)


> I might also mention that you need to use /etc/devfs.conf to customize
> thing like device protections and symlinks (such as /dev/dvd). devfs is
> primarily for setting up devices for jails, but it is also the best way
> to handle simpler customizations. I will attach my /etc/devfs.conf file
> as a rather trivial example.
> 
> Note that you need the lines:
> apm_enable="YES"
> apmd_enable="YES"
> in /etc/rc.conf. The quotation marks are required!

	The "YES"s are quoted.   Looking at /etc/devfs.conf 
	brings to mind a question about why "say" (audio/rsynth)
	isn't working with the speakers.  Do I need to add
	some lines to devfs.conf?  

> 
> Also, is APM being probed at boot time? You should see something like:
> apm0: <APM BIOS> on motherboard
> apm0: found APM BIOS v1.2, connected at v1.2
> very early in the boot. I don't build APM into the kernel but add:
> apm_load="YES"
> to /boot/loader.conf, but it should be fine in the kernel.

	The only 'BIOS'-related probe I see involves the PCI->PCI
	bridge.  When the system boots I get complaints about a 
	missing /dev/apm; and an expected string about apmd.

> 
> Make sure that ACPI is disabled and apm enabled in /boot/device.hints.
> hint.apm.0.disabled="0"
> hint.acpi.0.disabled="1"
> hint.apm.0.flags="0x20"
> 
> If ACPI starts up, APM won't. These hints entries take care of both
> issues. 


	Ah, the acpi.0.disabled was set to false.  This was 
	probably the culprit.  I just set it to "1".

	[ ... ]

> 
> # These are examples of how to configure devices using /etc/rc.d/devfs.
> # The first parameter is always the action to take, the second is always the
> # existing device created by devfs, and the last is what you want to change.
> # The name of the action is only significant to the first unique character.
> #
> # Examples:
> 
> # Historically X depended on this, but version 4.3.0 doesn't seem to anymore
> #link	ttyv0	vga
> 
> # Commonly used by many ports
> link	cd0	cdrom
> link	cd0	dvd
> link    ttyd0	pilot
> perm	cd0	0666
> perm	acd0	0666
> perm	pass0	0666
> perm	ttyd0	0666
> 
> # Allow a user in the wheel group to query the smb0 device
> perm	smb0	0660
> 
> # Allow members of group operator to cat things to the speaker
> own	speaker	root:operator
> perm	speaker	0666
> 

	This is getting interestinger and interestinger.  Why
	do you have the last two lines uncommented?

	thanks much,

	gary



-- 
   Gary Kline     [email protected]   www.thought.org     Public service Unix

_______________________________________________
[email protected] mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-mobile
To unsubscribe, send any mail to "[email protected]"