源码文件
#include #define xtal 4 void delay_1ms(void) { unsigned int i; for(i=1;i
IO 源代码
I/O输入/输出(Input/Output)，分为IO设备和IO接口两个部分。在POSIX兼容的系统上，例如Linux系统[1]，I/O操作可以有多种方式，比如DIO(DirectI/O)，AIO(AsynchronousI/O，异步I/O)，Memory-MappedI/O(内…
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源码文件
/* * U-boot - io-kernel.h * * Copyright (c) 2005-2007 Analog Devices Inc. * * (C) Copyright 2000-2004 * Wolfgang Denk, DENX …
源码文件
/* * linux/arch/arm/lib/io-shark.c * * by Alexander Schulz * * derived from: * linux/arch/arm/lib/io-ebsa.S * Copyright (…
源码文件
/* * linux/arch/arm/lib/io-writesb.S * * Copyright (C) 1995-2000 Russell King * * This program is free software; you can re…
源码文件
/* * linux/arch/arm/lib/io-readsb.S * * Copyright (C) 1995-2000 Russell King * * This program is free software; you can red…
源码文件
/* * linux/arch/arm/lib/io-acorn.S * * Copyright (C) 1995, 1996 Russell King * * This program is free software; you can red…
源码文件
/* * linux/arch/arm/lib/io-writesl.S * * Copyright (C) 1995-2000 Russell King * * This program is free software; you can re…
源码文件
[ NOTE: The virt_to_bus() and bus_to_virt() functions have been superseded by the functionality provided by the PCI DMA interfac…
源码文件
Most (all) Intel-MP compliant SMP boards have the so-called 'IO-APIC', which is an enhanced interrupt controller, it enables us to…
源码文件
/*************************************************************************/ /* …