Commit 8bcab3f5 authored by Michael Buesch's avatar Michael Buesch Committed by John W. Linville
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[PATCH] bcm43xx: add a note that not all devices support PIO. 



Signed-off-by: default avatarMichael Buesch <mbuesch@freenet.de>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 77db31ea

drivers/net/wireless/bcm43xx/Kconfig

+5 −0
Original line number Diff line number Diff line
@@ -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