kernel powerbook sleep docs

@@ -2391,6 +2391,22 @@
   includes a server that supports the frame buffer device directly
   (XF68_FBDev).

+Power management support for PowerBooks
+CONFIG_PMAC_PBOOK
+  This provides support for putting a PowerBook to sleep; it also
+  enables media bay support. Power management works on the
+  PB2400/3400/3500, Wallstreet, Lombard, and Bronze PowerBook G3. You
+  must get the power management daemon, pmud, to make it work and you
+  must have the /dev/pmu device (see the pmud README).
+
+  Get pmud from ftp://linuxcare.com.au/pub/ppclinux/pmud/
+
+  If you have a PowerBook, you should say Y.
+
+  You may also want to compile the dma sound driver as a module and
+  have it autoloaded. The act of removing the module shuts down the
+  sound hardware for more power savings.
+
 Matrox unified accelerated driver (EXPERIMENTAL)
 CONFIG_FB_MATROX
   Say Y here if you have Matrox Millennium, Matrox Millennium II,