[PATCH] bcm43xx: add a note that not all devices support PIO.

Signed-off-by: Michael Buesch <mbuesch@freenet.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
git-mirror · Mar 27, 2006 · 8bcab3f · 8bcab3f
1 parent 77db31e
commit 8bcab3f
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/drivers/net/wireless/bcm43xx/Kconfig b/drivers/net/wireless/bcm43xx/Kconfig
@@ -52,6 +52,11 @@ config BCM43XX_PIO_MODE
 	  Only include Programmed I/O (PIO).
 	  This reduces the size of the driver module, by omitting the DMA code.
 	  Please note that PIO transfers are slow (compared to DMA).
+
+	  Also note that not all devices of the 43xx series support PIO.
+	  The 4306 (Apple Airport Extreme and others) supports PIO, while
+	  the 4318 is known to _not_ support PIO.
+
 	  Only use PIO, if DMA does not work for you.
 
 endchoice