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authorMichael Buesch <mbuesch@freenet.de>2006-02-12 16:52:10 +0100
committerJohn W. Linville <linville@tuxdriver.com>2006-03-27 11:18:33 -0500
commit8bcab3f55982cf28310f2303bef741424ad0f563 (patch)
treed2334adadd6add966e1b31247b09929e76343bd8 /drivers/net/wireless
parent77db31ea4322f2dd12dc814d6664ae96517604c0 (diff)
[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>
Diffstat (limited to 'drivers/net/wireless')
-rw-r--r--drivers/net/wireless/bcm43xx/Kconfig5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/wireless/bcm43xx/Kconfig b/drivers/net/wireless/bcm43xx/Kconfig
index d8d23155ee3..1d677c15b21 100644
--- 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