From a20a51506cf3ba2bde10cf51b30bdb4ca8ae458a Mon Sep 17 00:00:00 2001 From: Frank Mori Hess Date: Sat, 2 Aug 2003 03:58:21 +0000 Subject: [PATCH] added missing --- doc/intro.sgml | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/doc/intro.sgml b/doc/intro.sgml index 3d87582..da7d64e 100644 --- a/doc/intro.sgml +++ b/doc/intro.sgml @@ -197,6 +197,8 @@ device drivers faster and with better documentation. + + In the case of Linux as the host operating system, device driver writers must keep the following Linux-specific issues in mind: @@ -262,7 +264,7 @@ each device. Input/Output (PIO). Almost all devices can be interfaced in PIO mode: the processor is responsible for directly accessing the bus addresses allocated to -the device whenever it needs +the device whenever it needs to read or write data. Some devices also allow DMA: the device and the memory talk to each other directly, without needing the processor. DMA is a feature of the bus, not of the operating system (which, of @@ -293,7 +295,7 @@ memory allocation, registration of interrupt handlers, etc. - +
-- 2.26.2