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1)¿éÉ豸Çý¶¯µÄÄ£¿é¼ÓÔØÍê³ÉµÄ¹¤×÷ÈçÏÂ:
Ø ·ÖÅä,³õʼ»¯ÇëÇó¶ÓÁÐ,°ó¶¨ÇëÇó¶ÓÁкÍÇëÇóº¯Êý
Ø ·ÖÅä,³õʼ»¯gendisk,¸øgendiskµÄmajor,fops,queueµÈ³ÉÔ±¸³Öµ,×îºóÌí¼Ógendisk.
Ø ×¢²á¿éÉ豸Çý¶¯.
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static int __init xxx_init(void){
//·ÖÅägendisk
xxx_disks = alloc_disk(1);
if(!xxx_disks){
goto out;
}
//¿éÉ豸Çý¶¯×¢²á
if(register_blkdev(xxx_MAJOR, "xxx"){
err = -EIO;
goto out;
}
//"ÇëÇó¶ÓÁÐ"·ÖÅä
xxx_queue = blk_alloc_queue(GFP_KERNEL);
if(!xxx_queue){
goto out_queue;
}
blk_queue_make_request(xxx_queue, &xxx_make_request);//°ó¶¨"ÖÆÔìÇëÇó"º¯Êý
blk_queue_hardsect_size(xxx_queue,xxx_blocksize);//¸æÖªÄÚºËÓ²¼þÉÈÇø³ß´ç
//gendisk³õʼ»¯
xxx_disks->major = xxx_MAJOR;
xxx_disks->first_minor = 0
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[root@GISDB ~]$ su - oracle
[oracle@GISDB ~]$ sqlplus /nolog
SQL*Plus: Release 10.2.0.4.0 - Production on Tue Oct 13 11:03:03 2009
Copyright (c) 1982, 2007, Oracle. All Rights Reserved.
SQL> conn /as sysdba
Connected to an idle instance.
SQL> startup
ORACLE instance started.
To ......