[ltp] Hot swapping ultrabay battery?

[Henrique de Moraes Holschuh]

On Mon, 21 Jan 2008, Theodore Tso wrote:
> On Mon, Jan 21, 2008 at 02:29:42PM -0800, Marc MERLIN wrote:
> > I'm pretty sure that if I reboot my laptop, I'll see the 2nd battery in
> > acpi, but is there a way to havfe it register without rebooting?
> 
> There were patches that went by LKML last week that claimed to support
> battery hotplug, whose descrtiptions seemed to imply that they solved
> this problem, but I haven't had time to try them yet.  As far as I
> know no one has commented on them, one way or another.  

Heh, the *only* think needed for the generic ACPI bay module to handle a
battery in a ThinkPad, is for it to stop refusing to detect anything that is
not a disk as a bay.  I have tested this, and told Zhang Rui sometime ago
exactly that.

So it is very, very likely that his patches "just work".  I will test them
soon.

A thinkpad actually has a lot of stuff that "bay" should handle:

1. Floppy port (yes, it is there at least on T4x, yes it works, but nobody
seems to care for floppies anymore, and you need a port replicator to even
access it).

2. PATA/SATA port (ultrabay) - works already

3. Battery (ultrabay) - needs the very recent patches to stop ignoring it
because it is not a disk (!)

Plus, whatever is in the dock. A T43 seems to only support a PATA/SATA port
in the dock, but other thinkpads have docks with very different
capabilities.

-- 
  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh