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📄 嵌入式系统字符驱动程序(应用)问题(初学),请帮忙回答 linux-unix社区 - 内核及驱动程序研究区 - csdn社区 community_csdn_net.htm

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<H1>嵌入式系统字符驱动程序(应用)问题(初学),请帮忙回答</H1>
<DIV class=forumperson><SPAN id=TopicAuthorUserName>syncrow</SPAN> (<SPAN 
id=TopicAuthorUserNickName>天天</SPAN>)&nbsp; <IMG alt="一级用户 该版得分小于等于100分" 
src="嵌入式系统字符驱动程序(应用)问题(初学),请帮忙回答 Linux-Unix社区 - 内核及驱动程序研究区 - CSDN社区 community_csdn_net.files/user1.gif">&nbsp; 
&nbsp;<SPAN id=TopicPostDateTime>2004-08-04 18:48:25</SPAN> 在&nbsp;<A 
href="http://community.csdn.net/Expert/ForumsList.asp?typenum=1&amp;roomid=8" 
rel=external><STRONG>Linux/Unix社区</STRONG></A>&nbsp;/&nbsp;<A 
href="http://community.csdn.net/Expert/ForumList.asp?typenum=1&amp;roomid=803" 
rel=external><STRONG>内核及驱动程序研究区</STRONG></A>&nbsp;提问</DIV></DIV>
<DIV 
id=TopicContextRegion><BR>我要做的是把一个字符设备的驱动程序加载到arm开发板上,我已经通过交叉编译,并且也已经把程序下载到开发板上了,自己写了一个很小的测试程序 
&nbsp; <BR>&nbsp; main() &nbsp; <BR>&nbsp; { &nbsp; <BR>&nbsp; int &nbsp; 
buf[10]; &nbsp; <BR>&nbsp; &nbsp; <BR>&nbsp; int &nbsp; fd &nbsp; = &nbsp; 
open("/dev/s3c2410-ts",0); &nbsp; <BR>&nbsp; if(-1==fd) &nbsp; <BR>&nbsp; 
printf("Can't &nbsp; open &nbsp; TS!"); &nbsp; <BR>&nbsp; while(1) &nbsp; 
<BR>&nbsp; { &nbsp; <BR>&nbsp; read( &nbsp; fd,buf,10); &nbsp; <BR>&nbsp; for( 
&nbsp; int &nbsp; i=0; &nbsp; i&lt;10;i++) &nbsp; <BR>&nbsp; printf('buf[%d]= 
&nbsp; %d\n",i,buf[i]); &nbsp; <BR>&nbsp; } &nbsp; <BR>&nbsp; } &nbsp; 
<BR>&nbsp; 程序运行后,屏幕上提示 &nbsp; Can't &nbsp; open &nbsp; TS!不知道错在哪里?dev/s3c2410-ts 
&nbsp; 是不是驱动程序里面的#define &nbsp; DEVICE_NAME "s3c2410-ts"?如果不是在哪里可以找到? &nbsp; 
<BR>&nbsp; &nbsp; <BR>&nbsp; &nbsp; <BR>&nbsp; 驱动程序:(部分,帖子太长了) &nbsp; <BR>&nbsp; 
/* &nbsp; debug &nbsp; macros &nbsp; */ &nbsp; <BR>&nbsp; #undef &nbsp; DEBUG 
&nbsp; <BR>&nbsp; #ifdef &nbsp; DEBUG &nbsp; <BR>&nbsp; #define &nbsp; DPRINTK( 
&nbsp; x... &nbsp; ) printk("s3c2410-ts: &nbsp; " &nbsp; ##x) &nbsp; <BR>&nbsp; 
#else &nbsp; <BR>&nbsp; #define &nbsp; DPRINTK( &nbsp; x... &nbsp; ) &nbsp; 
<BR>&nbsp; #endif &nbsp; <BR>&nbsp; &nbsp; <BR>&nbsp; #define &nbsp; PEN_UP 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0 &nbsp; <BR>&nbsp; 
#define &nbsp; PEN_DOWN 1 &nbsp; <BR>&nbsp; #define &nbsp; PEN_FLEETING 2 &nbsp; 
<BR>&nbsp; #define &nbsp; MAX_TS_BUF 16 /* &nbsp; how &nbsp; many &nbsp; do 
&nbsp; we &nbsp; want &nbsp; to &nbsp; buffer &nbsp; */ &nbsp; <BR>&nbsp; &nbsp; 
<BR>&nbsp; #undef &nbsp; USE_ASYNC 1 &nbsp; <BR>&nbsp; #define &nbsp; 
DEVICE_NAME "s3c2410-ts" &nbsp; <BR>&nbsp; #define &nbsp; TSRAW_MINOR 1 &nbsp; 
<BR>&nbsp; &nbsp; <BR>&nbsp; typedef &nbsp; struct &nbsp; { &nbsp; <BR>&nbsp; 
unsigned &nbsp; int &nbsp; penStatus; /* &nbsp; PEN_UP, &nbsp; PEN_DOWN, &nbsp; 
PEN_SAMPLE &nbsp; */ &nbsp; <BR>&nbsp; TS_RET &nbsp; buf[MAX_TS_BUF]; /* &nbsp; 

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