Linux Platform Device and Driver
´ÓLinux 2.6ÆðÒýÈëÁËÒ»Ì×еÄÇý¶¯¹ÜÀíºÍ×¢²á»úÖÆ:Platform_deviceºÍPlatform_driver¡£
LinuxÖд󲿷ֵÄÉ豸Çý¶¯£¬¶¼¿ÉÒÔʹÓÃÕâÌ×»úÖÆ, É豸ÓÃPlatform_device±íʾ£¬Çý¶¯ÓÃPlatform_driver½øÐÐ×¢²á¡£
Linux platform driver»úÖÆºÍ´«Í³µÄdevice driver »úÖÆ(ͨ¹ýdriver_registerº¯Êý½øÐÐ×¢²á)Ïà±È£¬Ò»¸öÊ®·ÖÃ÷ÏÔµÄÓÅÊÆÔÚÓÚplatform»úÖÆ½«É豸±¾ÉíµÄ×ÊÔ´×¢²á½øÄںˣ¬ÓÉÄÚºËͳһ¹ÜÀí£¬ÔÚÇý¶¯³ÌÐòÖÐʹÓÃÕâЩ×ÊԴʱͨ¹ýplatform deviceÌṩµÄ±ê×¼½Ó¿Ú½øÐÐÉêÇ벢ʹÓá£ÕâÑùÌá¸ßÁËÇý¶¯ºÍ×ÊÔ´¹ÜÀíµÄ¶ÀÁ¢ÐÔ£¬²¢ÇÒÓµÓнϺõĿÉÒÆÖ²ÐԺͰ²È«ÐÔ(ÕâЩ±ê×¼½Ó¿ÚÊǰ²È«µÄ)¡£
Platform»úÖÆµÄ±¾ÉíʹÓò¢²»¸´ÔÓ£¬ÓÉÁ½²¿·Ö×é³É£ºplatform_deviceºÍplatfrom_driver¡£
ͨ¹ýPlatform»úÖÆ¿ª·¢·¢µ×²ãÇý¶¯µÄ´óÖÂÁ÷³ÌΪ: ¶¨Òå platform_device à ×¢²á platform_device à ¶¨Òå platform_driver à×¢²á platform_driver¡£
Ê×ÏÈҪȷÈϵľÍÊÇÉ豸µÄ×ÊÔ´ÐÅÏ¢£¬ÀýÈçÉ豸µÄµØÖ·£¬ÖжϺŵȡ£
ÔÚ2.6ÄÚºËÖÐplatformÉ豸ÓýṹÌåplatform_deviceÀ´ÃèÊö£¬¸Ã½á¹¹Ì嶨ÒåÔÚkernel\include\linux\platform_device.hÖУ¬
struct platform_device {
const char * name;
u32 id;
struct device dev;
u32 num_resources;
struct resource * resource;
};
¸Ã½á¹¹Ò»¸öÖØÒªµÄÔªËØÊÇresource£¬¸ÃÔªËØ´æÈëÁË×îÎªÖØÒªµÄÉ豸×ÊÔ´ÐÅÏ¢£¬¶¨ÒåÔÚkernel\include\linux\ioport.hÖУ¬
struct resource {
const char *name;
unsigned long start, end;
unsigned long flags;
struct resource *parent, *sibling, *child;
};
ÏÂÃæ¾Ùs3c2410ƽ̨µÄi2cÇý¶¯×÷ΪÀý×ÓÀ´ËµÃ÷£º
/* arch/arm/mach-s3c2410/devs.c */
/* I2C */
static struct resource s3c_i2c_resource[] = {
[0] = {
.start = S3C24XX_PA_IIC,
.end = S3C24XX_PA_IIC + S3C24XX_SZ_IIC - 1,
 
Ïà¹ØÎĵµ£º
´´½¨×ÀÃæÍ¼±ê
Ŀǰ½«ÍøÂçÓ¦ÓÃÀ©Õ¹µ½×ÀÃæÊÇÒ»¸öÇ÷ÊÆ£¬´æÔÚןܶà½â¾ö·½°¸£¬±¾ÎÄÒÔ Mozilla Prism ΪÀý£¬ÀàËÆµÄ·½·¨Í¬ÑùÊÊÓÃÓÚ Google Chrome ¡£
1. µ½ Mozilla Prism µÄÍøÕ¾ÉÏÏÂÔØ Prism£¬µã»÷ Download Now Ö®ºó»áÌáʾÓÐÁ½ÖÖ£¬Ò»ÖÖÊÇÒÔ Mozilla Firefox À©Õ¹µÄ·½Ê½£¬ÊʺÏÒѾ°²×°ÓÐ Firefox µÄÅóÓÑ£»Ò»Ö ......
ÈíʵʱºÍӲʵʱ£¬ÈíʵʱÊÇ˵Υ·´Á˳ÌÐòÖ´ÐеÄdeadlineÒ²²»»áÓÐÖÂÃüµÄ´íÎ󣬶øÓ²ÊµÊ±µÄdeadlineÊÇдËÀµÄ¡£
ºÜ¶àlinuxÓÐӲʵʱµÄ²¹¶¡£¬ÈçMontaVista¡£
ÓÐÔ´¾§ÕñºÍÎÞÔ´¾§Õñ£¬ÓÐÔ´µÄ½Ðosllicator£¬ÎÞÔ´µÄ½Ðcrystal¡£
uclinuxÊǾ²Ì¬±àÒëµÄ£¬Ã»ÓÐmmu»úÖÆ¡£
x86µÄҪѡxterm...
serveu¼ÙÉè·þÎñÆ÷ + linuxÓÃsftp£¨Í¨¹ýssh ......
±¾ÎĽ«ÃèÊöÏ̵߳ÄÒ»¸ö±È½ÏÖØÒªµÄÒ»·½Ã棺Ïß³Ì˽ÓÐÊý¾Ý£¬ÈçÏ´úÂ룺
#include <pthread.h>
#include <unistd.h>
#include <stdio.h>
pthread_key_t kKey = 0;
void * ThreadProc(void* arg)
{
char* a = (char*)(arg);
sleep(2);
pthread_setspecific(kKey, a);
......
1. ¹Ì¶¨Ò»¸öMACµØÖ·£¬ÌرðÊÇÔÚʹÓöà¸öÐéÄâ»úµÄʱºò
linux»·¾³ÏÂ:
ÓÃrootÉí·ÝµÇ¼£¬ÔÚ/etc/rc.d/rc.localÀï¼ÓÉÏÕâÈý¾ä
ifconfig eth0 down
ifconfig eth0 hw ether 00:0C:18:EF:FF:ED
ifconfig eth0 up
ÕâÑùÖØÐÂrebootºó¾Í²»ÅÂMAC¸´ÔÁË¡£
2. ifconfigÃüÁî£¨×ªÔØhttp://www.cnblogs.com/taobataoma/archive/2007/1 ......
Õⲿ·ÖÄÜÓñ¾×ÅÏë¼Ç¾Í¾Í¼Ç£¬Ïë²»ÆðÀ´¾Í²»¼ÇµÄÔÔò¡£Í¬ÊdzöÓÚÁ·Ï°Ó¢ÎĵÄÄ¿µÄ£¬²¿·Ö²»ÖØÒªÄÚÈݼƻ®ÓÃÓ¢ÎÄ¡£
ÊÂÏÈ˵Ã÷ÎÒ¶ÁµÄÊÇlinux1.0£¬ÕâÀï¿ÉÒÔ¼¸ºõ²»ÓÃÔõô¿´µ½lock ǰ׺£¬¶¼Êǵ¥cpu£¬Í¬Ê±ÓÐÒýµ¼³ÌÐò¡£ Ê×ÏÈ˵Ã÷cpuΪʲô»áÔËתÆðÀ´£º
1£ºcpuÉϵçºó»á´Óijһ¸öµØÖ·¿ªÊ¼Ë³ÐòÖ´ÐгÌÐò£¬µ±È»´ËʱÊÇʵģʽ£¨Èç¹ûÎÊʲôÊÇʵģ ......