From 8bcab3f55982cf28310f2303bef741424ad0f563 Mon Sep 17 00:00:00 2001 From: Michael Buesch Date: Sun, 12 Feb 2006 16:52:10 +0100 Subject: [PATCH] [PATCH] bcm43xx: add a note that not all devices support PIO. Signed-off-by: Michael Buesch Signed-off-by: John W. Linville --- drivers/net/wireless/bcm43xx/Kconfig | 5 +++++ 1 file changed, 5 insertions(+) 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 -- 2.20.1