From: Michael Buesch Date: Sun, 12 Feb 2006 15:52:10 +0000 (+0100) Subject: [PATCH] bcm43xx: add a note that not all devices support PIO. X-Git-Tag: v2.6.17-rc1~158^2~48 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8bcab3f55982cf28310f2303bef741424ad0f563;p=linux-2.6 [PATCH] bcm43xx: add a note that not all devices support PIO. Signed-off-by: Michael Buesch Signed-off-by: John W. Linville --- diff --git a/drivers/net/wireless/bcm43xx/Kconfig b/drivers/net/wireless/bcm43xx/Kconfig index d8d23155ee..1d677c15b2 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